@@ 1,14 1,26 @@
-// stb_sprintf - v1.02 - public domain snprintf() implementation
+// stb_sprintf - v1.10 - public domain snprintf() implementation
// originally by Jeff Roberts / RAD Game Tools, 2015/10/20
// http://github.com/nothings/stb
//
// allowed types: sc uidBboXx p AaGgEef n
-// lengths : h ll j z t I64 I32 I
+// lengths : hh h ll j z t I64 I32 I
+//
+// Contributors:
+// Fabian "ryg" Giesen (reformatting)
+// github:aganm (attribute format)
//
// Contributors (bugfixes):
// github:d26435
// github:trex78
+// github:account-login
// Jari Komppa (SI suffixes)
+// Rohit Nirmal
+// Marcin Wojdyr
+// Leonard Ritter
+// Stefano Zanotti
+// Adam Allison
+// Arvid Gerstmann
+// Markus Kolb
//
// LICENSE:
//
@@ 130,53 142,81 @@ PERFORMANCE vs MSVC 2008 32-/64-bit (GCC
"...512 char string..." ( 35.0x/32.5x faster!)
*/
-#if defined(__has_feature)
- #if __has_feature(address_sanitizer)
- #define STBI__ASAN __attribute__((no_sanitize("address")))
+#if defined(__clang__)
+ #if defined(__has_feature) && defined(__has_attribute)
+ #if __has_feature(address_sanitizer)
+ #if __has_attribute(__no_sanitize__)
+ #define STBSP__ASAN __attribute__((__no_sanitize__("address")))
+ #elif __has_attribute(__no_sanitize_address__)
+ #define STBSP__ASAN __attribute__((__no_sanitize_address__))
+ #elif __has_attribute(__no_address_safety_analysis__)
+ #define STBSP__ASAN __attribute__((__no_address_safety_analysis__))
+ #endif
+ #endif
+ #endif
+#elif defined(__GNUC__) && (__GNUC__ >= 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))
+ #if defined(__SANITIZE_ADDRESS__) && __SANITIZE_ADDRESS__
+ #define STBSP__ASAN __attribute__((__no_sanitize_address__))
#endif
#endif
-#ifndef STBI__ASAN
-#define STBI__ASAN
+
+#ifndef STBSP__ASAN
+#define STBSP__ASAN
#endif
#ifdef STB_SPRINTF_STATIC
#define STBSP__PUBLICDEC static
-#define STBSP__PUBLICDEF static STBI__ASAN
+#define STBSP__PUBLICDEF static STBSP__ASAN
#else
#ifdef __cplusplus
#define STBSP__PUBLICDEC extern "C"
-#define STBSP__PUBLICDEF extern "C" STBI__ASAN
+#define STBSP__PUBLICDEF extern "C" STBSP__ASAN
#else
#define STBSP__PUBLICDEC extern
-#define STBSP__PUBLICDEF STBI__ASAN
+#define STBSP__PUBLICDEF STBSP__ASAN
#endif
#endif
-#include <stdarg.h> // for va_list()
+#if defined(__has_attribute)
+ #if __has_attribute(format)
+ #define STBSP__ATTRIBUTE_FORMAT(fmt,va) __attribute__((format(printf,fmt,va)))
+ #endif
+#endif
+
+#ifndef STBSP__ATTRIBUTE_FORMAT
+#define STBSP__ATTRIBUTE_FORMAT(fmt,va)
+#endif
+
+#ifdef _MSC_VER
+#define STBSP__NOTUSED(v) (void)(v)
+#else
+#define STBSP__NOTUSED(v) (void)sizeof(v)
+#endif
+
+#include <stdarg.h> // for va_arg(), va_list()
+#include <stddef.h> // size_t, ptrdiff_t
#ifndef STB_SPRINTF_MIN
#define STB_SPRINTF_MIN 512 // how many characters per callback
#endif
-typedef char * STBSP_SPRINTFCB( char * buf, void * user, int len );
+typedef char *STBSP_SPRINTFCB(const char *buf, void *user, int len);
#ifndef STB_SPRINTF_DECORATE
-#define STB_SPRINTF_DECORATE(name) stbsp_##name // define this before including if you want to change the names
+#define STB_SPRINTF_DECORATE(name) stbsp_##name // define this before including if you want to change the names
#endif
-STBSP__PUBLICDEF int STB_SPRINTF_DECORATE( vsprintf )( char * buf, char const * fmt, va_list va );
-STBSP__PUBLICDEF int STB_SPRINTF_DECORATE( vsnprintf )( char * buf, int count, char const * fmt, va_list va );
-STBSP__PUBLICDEF int STB_SPRINTF_DECORATE( sprintf ) ( char * buf, char const * fmt, ... );
-STBSP__PUBLICDEF int STB_SPRINTF_DECORATE( snprintf )( char * buf, int count, char const * fmt, ... );
+STBSP__PUBLICDEC int STB_SPRINTF_DECORATE(vsprintf)(char *buf, char const *fmt, va_list va);
+STBSP__PUBLICDEC int STB_SPRINTF_DECORATE(vsnprintf)(char *buf, int count, char const *fmt, va_list va);
+STBSP__PUBLICDEC int STB_SPRINTF_DECORATE(sprintf)(char *buf, char const *fmt, ...) STBSP__ATTRIBUTE_FORMAT(2,3);
+STBSP__PUBLICDEC int STB_SPRINTF_DECORATE(snprintf)(char *buf, int count, char const *fmt, ...) STBSP__ATTRIBUTE_FORMAT(3,4);
-STBSP__PUBLICDEF int STB_SPRINTF_DECORATE( vsprintfcb )( STBSP_SPRINTFCB * callback, void * user, char * buf, char const * fmt, va_list va );
-STBSP__PUBLICDEF void STB_SPRINTF_DECORATE( set_separators )( char comma, char period );
+STBSP__PUBLICDEC int STB_SPRINTF_DECORATE(vsprintfcb)(STBSP_SPRINTFCB *callback, void *user, char *buf, char const *fmt, va_list va);
+STBSP__PUBLICDEC void STB_SPRINTF_DECORATE(set_separators)(char comma, char period);
#endif // STB_SPRINTF_H_INCLUDE
#ifdef STB_SPRINTF_IMPLEMENTATION
-#include <stdlib.h> // for va_arg()
-
#define stbsp__uint32 unsigned int
#define stbsp__int32 signed int
@@ 190,20 230,20 @@ STBSP__PUBLICDEF void STB_SPRINTF_DECORA
#define stbsp__uint16 unsigned short
#ifndef stbsp__uintptr
-#if defined(__ppc64__) || defined(__aarch64__) || defined(_M_X64) || defined(__x86_64__) || defined(__x86_64)
+#if defined(__ppc64__) || defined(__powerpc64__) || defined(__aarch64__) || defined(_M_X64) || defined(__x86_64__) || defined(__x86_64) || defined(__s390x__)
#define stbsp__uintptr stbsp__uint64
#else
#define stbsp__uintptr stbsp__uint32
#endif
#endif
-#ifndef STB_SPRINTF_MSVC_MODE // used for MSVC2013 and earlier (MSVC2015 matches GCC)
-#if defined(_MSC_VER) && (_MSC_VER<1900)
+#ifndef STB_SPRINTF_MSVC_MODE // used for MSVC2013 and earlier (MSVC2015 matches GCC)
+#if defined(_MSC_VER) && (_MSC_VER < 1900)
#define STB_SPRINTF_MSVC_MODE
#endif
#endif
-#ifdef STB_SPRINTF_NOUNALIGNED // define this before inclusion to force stbsp_sprintf to always use aligned accesses
+#ifdef STB_SPRINTF_NOUNALIGNED // define this before inclusion to force stbsp_sprintf to always use aligned accesses
#define STBSP__UNALIGNED(code)
#else
#define STBSP__UNALIGNED(code) code
@@ 211,19 251,30 @@ STBSP__PUBLICDEF void STB_SPRINTF_DECORA
#ifndef STB_SPRINTF_NOFLOAT
// internal float utility functions
-static stbsp__int32 stbsp__real_to_str( char const * * start, stbsp__uint32 * len, char *out, stbsp__int32 * decimal_pos, double value, stbsp__uint32 frac_digits );
-static stbsp__int32 stbsp__real_to_parts( stbsp__int64 * bits, stbsp__int32 * expo, double value );
+static stbsp__int32 stbsp__real_to_str(char const **start, stbsp__uint32 *len, char *out, stbsp__int32 *decimal_pos, double value, stbsp__uint32 frac_digits);
+static stbsp__int32 stbsp__real_to_parts(stbsp__int64 *bits, stbsp__int32 *expo, double value);
#define STBSP__SPECIAL 0x7000
#endif
-static char stbsp__period='.';
-static char stbsp__comma=',';
-static char stbsp__digitpair[201]="00010203040506070809101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899";
+static char stbsp__period = '.';
+static char stbsp__comma = ',';
+static struct
+{
+ short temp; // force next field to be 2-byte aligned
+ char pair[201];
+} stbsp__digitpair =
+{
+ 0,
+ "00010203040506070809101112131415161718192021222324"
+ "25262728293031323334353637383940414243444546474849"
+ "50515253545556575859606162636465666768697071727374"
+ "75767778798081828384858687888990919293949596979899"
+};
-STBSP__PUBLICDEF void STB_SPRINTF_DECORATE( set_separators )( char pcomma, char pperiod )
+STBSP__PUBLICDEF void STB_SPRINTF_DECORATE(set_separators)(char pcomma, char pperiod)
{
- stbsp__period=pperiod;
- stbsp__comma=pcomma;
+ stbsp__period = pperiod;
+ stbsp__comma = pcomma;
}
#define STBSP__LEFTJUST 1
@@ 242,587 293,1065 @@ STBSP__PUBLICDEF void STB_SPRINTF_DECORA
static void stbsp__lead_sign(stbsp__uint32 fl, char *sign)
{
- sign[0] = 0;
- if (fl&STBSP__NEGATIVE) {
- sign[0]=1;
- sign[1]='-';
- } else if (fl&STBSP__LEADINGSPACE) {
- sign[0]=1;
- sign[1]=' ';
- } else if (fl&STBSP__LEADINGPLUS) {
- sign[0]=1;
- sign[1]='+';
- }
+ sign[0] = 0;
+ if (fl & STBSP__NEGATIVE) {
+ sign[0] = 1;
+ sign[1] = '-';
+ } else if (fl & STBSP__LEADINGSPACE) {
+ sign[0] = 1;
+ sign[1] = ' ';
+ } else if (fl & STBSP__LEADINGPLUS) {
+ sign[0] = 1;
+ sign[1] = '+';
+ }
+}
+
+static STBSP__ASAN stbsp__uint32 stbsp__strlen_limited(char const *s, stbsp__uint32 limit)
+{
+ char const * sn = s;
+
+ // get up to 4-byte alignment
+ for (;;) {
+ if (((stbsp__uintptr)sn & 3) == 0)
+ break;
+
+ if (!limit || *sn == 0)
+ return (stbsp__uint32)(sn - s);
+
+ ++sn;
+ --limit;
+ }
+
+ // scan over 4 bytes at a time to find terminating 0
+ // this will intentionally scan up to 3 bytes past the end of buffers,
+ // but becase it works 4B aligned, it will never cross page boundaries
+ // (hence the STBSP__ASAN markup; the over-read here is intentional
+ // and harmless)
+ while (limit >= 4) {
+ stbsp__uint32 v = *(stbsp__uint32 *)sn;
+ // bit hack to find if there's a 0 byte in there
+ if ((v - 0x01010101) & (~v) & 0x80808080UL)
+ break;
+
+ sn += 4;
+ limit -= 4;
+ }
+
+ // handle the last few characters to find actual size
+ while (limit && *sn) {
+ ++sn;
+ --limit;
+ }
+
+ return (stbsp__uint32)(sn - s);
}
-STBSP__PUBLICDEF int STB_SPRINTF_DECORATE( vsprintfcb )( STBSP_SPRINTFCB * callback, void * user, char * buf, char const * fmt, va_list va )
+STBSP__PUBLICDEF int STB_SPRINTF_DECORATE(vsprintfcb)(STBSP_SPRINTFCB *callback, void *user, char *buf, char const *fmt, va_list va)
{
- static char hex[]="0123456789abcdefxp";
- static char hexu[]="0123456789ABCDEFXP";
- char * bf;
- char const * f;
- int tlen = 0;
+ static char hex[] = "0123456789abcdefxp";
+ static char hexu[] = "0123456789ABCDEFXP";
+ char *bf;
+ char const *f;
+ int tlen = 0;
+
+ bf = buf;
+ f = fmt;
+ for (;;) {
+ stbsp__int32 fw, pr, tz;
+ stbsp__uint32 fl;
- bf = buf;
- f = fmt;
- for(;;)
- {
- stbsp__int32 fw,pr,tz; stbsp__uint32 fl;
-
- // macros for the callback buffer stuff
- #define stbsp__chk_cb_bufL(bytes) { int len = (int)(bf-buf); if ((len+(bytes))>=STB_SPRINTF_MIN) { tlen+=len; if (0==(bf=buf=callback(buf,user,len))) goto done; } }
- #define stbsp__chk_cb_buf(bytes) { if ( callback ) { stbsp__chk_cb_bufL(bytes); } }
- #define stbsp__flush_cb() { stbsp__chk_cb_bufL(STB_SPRINTF_MIN-1); } //flush if there is even one byte in the buffer
- #define stbsp__cb_buf_clamp(cl,v) cl = v; if ( callback ) { int lg = STB_SPRINTF_MIN-(int)(bf-buf); if (cl>lg) cl=lg; }
+ // macros for the callback buffer stuff
+ #define stbsp__chk_cb_bufL(bytes) \
+ { \
+ int len = (int)(bf - buf); \
+ if ((len + (bytes)) >= STB_SPRINTF_MIN) { \
+ tlen += len; \
+ if (0 == (bf = buf = callback(buf, user, len))) \
+ goto done; \
+ } \
+ }
+ #define stbsp__chk_cb_buf(bytes) \
+ { \
+ if (callback) { \
+ stbsp__chk_cb_bufL(bytes); \
+ } \
+ }
+ #define stbsp__flush_cb() \
+ { \
+ stbsp__chk_cb_bufL(STB_SPRINTF_MIN - 1); \
+ } // flush if there is even one byte in the buffer
+ #define stbsp__cb_buf_clamp(cl, v) \
+ cl = v; \
+ if (callback) { \
+ int lg = STB_SPRINTF_MIN - (int)(bf - buf); \
+ if (cl > lg) \
+ cl = lg; \
+ }
- // fast copy everything up to the next % (or end of string)
- for(;;)
- {
- while (((stbsp__uintptr)f)&3)
- {
- schk1: if (f[0]=='%') goto scandd;
- schk2: if (f[0]==0) goto endfmt;
- stbsp__chk_cb_buf(1); *bf++=f[0]; ++f;
+ // fast copy everything up to the next % (or end of string)
+ for (;;) {
+ while (((stbsp__uintptr)f) & 3) {
+ schk1:
+ if (f[0] == '%')
+ goto scandd;
+ schk2:
+ if (f[0] == 0)
+ goto endfmt;
+ stbsp__chk_cb_buf(1);
+ *bf++ = f[0];
+ ++f;
+ }
+ for (;;) {
+ // Check if the next 4 bytes contain %(0x25) or end of string.
+ // Using the 'hasless' trick:
+ // https://graphics.stanford.edu/~seander/bithacks.html#HasLessInWord
+ stbsp__uint32 v, c;
+ v = *(stbsp__uint32 *)f;
+ c = (~v) & 0x80808080;
+ if (((v ^ 0x25252525) - 0x01010101) & c)
+ goto schk1;
+ if ((v - 0x01010101) & c)
+ goto schk2;
+ if (callback)
+ if ((STB_SPRINTF_MIN - (int)(bf - buf)) < 4)
+ goto schk1;
+ #ifdef STB_SPRINTF_NOUNALIGNED
+ if(((stbsp__uintptr)bf) & 3) {
+ bf[0] = f[0];
+ bf[1] = f[1];
+ bf[2] = f[2];
+ bf[3] = f[3];
+ } else
+ #endif
+ {
+ *(stbsp__uint32 *)bf = v;
+ }
+ bf += 4;
+ f += 4;
+ }
}
- for(;;)
- {
- // Check if the next 4 bytes contain %(0x25) or end of string.
- // Using the 'hasless' trick:
- // https://graphics.stanford.edu/~seander/bithacks.html#HasLessInWord
- stbsp__uint32 v,c;
- v=*(stbsp__uint32*)f; c=(~v)&0x80808080;
- if (((v^0x25252525)-0x01010101)&c) goto schk1;
- if ((v-0x01010101)&c) goto schk2;
- if (callback) if ((STB_SPRINTF_MIN-(int)(bf-buf))<4) goto schk1;
- *(stbsp__uint32*)bf=v; bf+=4; f+=4;
- }
- } scandd:
+ scandd:
+
+ ++f;
- ++f;
-
- // ok, we have a percent, read the modifiers first
- fw = 0; pr = -1; fl = 0; tz = 0;
+ // ok, we have a percent, read the modifiers first
+ fw = 0;
+ pr = -1;
+ fl = 0;
+ tz = 0;
- // flags
- for(;;)
- {
- switch(f[0])
- {
- // if we have left justify
- case '-': fl|=STBSP__LEFTJUST; ++f; continue;
- // if we have leading plus
- case '+': fl|=STBSP__LEADINGPLUS; ++f; continue;
- // if we have leading space
- case ' ': fl|=STBSP__LEADINGSPACE; ++f; continue;
- // if we have leading 0x
- case '#': fl|=STBSP__LEADING_0X; ++f; continue;
- // if we have thousand commas
- case '\'': fl|=STBSP__TRIPLET_COMMA; ++f; continue;
- // if we have kilo marker (none->kilo->kibi->jedec)
- case '$':
- if (fl&STBSP__METRIC_SUFFIX)
- {
- if (fl&STBSP__METRIC_1024)
- {
- fl|=STBSP__METRIC_JEDEC;
- }
- else
- {
- fl|=STBSP__METRIC_1024;
- }
+ // flags
+ for (;;) {
+ switch (f[0]) {
+ // if we have left justify
+ case '-':
+ fl |= STBSP__LEFTJUST;
+ ++f;
+ continue;
+ // if we have leading plus
+ case '+':
+ fl |= STBSP__LEADINGPLUS;
+ ++f;
+ continue;
+ // if we have leading space
+ case ' ':
+ fl |= STBSP__LEADINGSPACE;
+ ++f;
+ continue;
+ // if we have leading 0x
+ case '#':
+ fl |= STBSP__LEADING_0X;
+ ++f;
+ continue;
+ // if we have thousand commas
+ case '\'':
+ fl |= STBSP__TRIPLET_COMMA;
+ ++f;
+ continue;
+ // if we have kilo marker (none->kilo->kibi->jedec)
+ case '$':
+ if (fl & STBSP__METRIC_SUFFIX) {
+ if (fl & STBSP__METRIC_1024) {
+ fl |= STBSP__METRIC_JEDEC;
+ } else {
+ fl |= STBSP__METRIC_1024;
+ }
+ } else {
+ fl |= STBSP__METRIC_SUFFIX;
}
- else
- {
- fl|=STBSP__METRIC_SUFFIX;
- }
- ++f; continue;
- // if we don't want space between metric suffix and number
- case '_': fl|=STBSP__METRIC_NOSPACE; ++f; continue;
- // if we have leading zero
- case '0': fl|=STBSP__LEADINGZERO; ++f; goto flags_done;
- default: goto flags_done;
+ ++f;
+ continue;
+ // if we don't want space between metric suffix and number
+ case '_':
+ fl |= STBSP__METRIC_NOSPACE;
+ ++f;
+ continue;
+ // if we have leading zero
+ case '0':
+ fl |= STBSP__LEADINGZERO;
+ ++f;
+ goto flags_done;
+ default: goto flags_done;
+ }
+ }
+ flags_done:
+
+ // get the field width
+ if (f[0] == '*') {
+ fw = va_arg(va, stbsp__uint32);
+ ++f;
+ } else {
+ while ((f[0] >= '0') && (f[0] <= '9')) {
+ fw = fw * 10 + f[0] - '0';
+ f++;
+ }
}
- }
- flags_done:
-
- // get the field width
- if ( f[0] == '*' ) {fw = va_arg(va,stbsp__uint32); ++f;} else { while (( f[0] >= '0' ) && ( f[0] <= '9' )) { fw = fw * 10 + f[0] - '0'; f++; } }
- // get the precision
- if ( f[0]=='.' ) { ++f; if ( f[0] == '*' ) {pr = va_arg(va,stbsp__uint32); ++f;} else { pr = 0; while (( f[0] >= '0' ) && ( f[0] <= '9' )) { pr = pr * 10 + f[0] - '0'; f++; } } }
+ // get the precision
+ if (f[0] == '.') {
+ ++f;
+ if (f[0] == '*') {
+ pr = va_arg(va, stbsp__uint32);
+ ++f;
+ } else {
+ pr = 0;
+ while ((f[0] >= '0') && (f[0] <= '9')) {
+ pr = pr * 10 + f[0] - '0';
+ f++;
+ }
+ }
+ }
- // handle integer size overrides
- switch(f[0])
- {
+ // handle integer size overrides
+ switch (f[0]) {
// are we halfwidth?
- case 'h': fl|=STBSP__HALFWIDTH; ++f; break;
+ case 'h':
+ fl |= STBSP__HALFWIDTH;
+ ++f;
+ if (f[0] == 'h')
+ ++f; // QUARTERWIDTH
+ break;
// are we 64-bit (unix style)
- case 'l': ++f; if ( f[0]=='l') { fl|=STBSP__INTMAX; ++f; } break;
+ case 'l':
+ fl |= ((sizeof(long) == 8) ? STBSP__INTMAX : 0);
+ ++f;
+ if (f[0] == 'l') {
+ fl |= STBSP__INTMAX;
+ ++f;
+ }
+ break;
// are we 64-bit on intmax? (c99)
- case 'j': fl|=STBSP__INTMAX; ++f; break;
+ case 'j':
+ fl |= (sizeof(size_t) == 8) ? STBSP__INTMAX : 0;
+ ++f;
+ break;
// are we 64-bit on size_t or ptrdiff_t? (c99)
- case 'z': case 't': fl|=((sizeof(char*)==8)?STBSP__INTMAX:0); ++f; break;
+ case 'z':
+ fl |= (sizeof(ptrdiff_t) == 8) ? STBSP__INTMAX : 0;
+ ++f;
+ break;
+ case 't':
+ fl |= (sizeof(ptrdiff_t) == 8) ? STBSP__INTMAX : 0;
+ ++f;
+ break;
// are we 64-bit (msft style)
- case 'I': if ( ( f[1]=='6') && ( f[2]=='4') ) { fl|=STBSP__INTMAX; f+=3; }
- else if ( ( f[1]=='3') && ( f[2]=='2') ) { f+=3; }
- else { fl|=((sizeof(void*)==8)?STBSP__INTMAX:0); ++f; } break;
+ case 'I':
+ if ((f[1] == '6') && (f[2] == '4')) {
+ fl |= STBSP__INTMAX;
+ f += 3;
+ } else if ((f[1] == '3') && (f[2] == '2')) {
+ f += 3;
+ } else {
+ fl |= ((sizeof(void *) == 8) ? STBSP__INTMAX : 0);
+ ++f;
+ }
+ break;
default: break;
- }
+ }
- // handle each replacement
- switch( f[0] )
- {
- #define STBSP__NUMSZ 512 // big enough for e308 (with commas) or e-307
- char num[STBSP__NUMSZ];
- char lead[8];
- char tail[8];
- char *s;
- char const *h;
- stbsp__uint32 l,n,cs;
- stbsp__uint64 n64;
- #ifndef STB_SPRINTF_NOFLOAT
- double fv;
- #endif
- stbsp__int32 dp; char const * sn;
+ // handle each replacement
+ switch (f[0]) {
+ #define STBSP__NUMSZ 512 // big enough for e308 (with commas) or e-307
+ char num[STBSP__NUMSZ];
+ char lead[8];
+ char tail[8];
+ char *s;
+ char const *h;
+ stbsp__uint32 l, n, cs;
+ stbsp__uint64 n64;
+#ifndef STB_SPRINTF_NOFLOAT
+ double fv;
+#endif
+ stbsp__int32 dp;
+ char const *sn;
case 's':
- // get the string
- s = va_arg(va,char*); if (s==0) s = (char*)"null";
- // get the length
- sn = s;
- for(;;)
- {
- if ((((stbsp__uintptr)sn)&3)==0) break;
- lchk:
- if (sn[0]==0) goto ld;
- ++sn;
- }
- n = 0xffffffff;
- if (pr>=0) { n=(stbsp__uint32)(sn-s); if (n>=(stbsp__uint32)pr) goto ld; n=((stbsp__uint32)(pr-n))>>2; }
- while(n)
- {
- stbsp__uint32 v=*(stbsp__uint32*)sn;
- if ((v-0x01010101)&(~v)&0x80808080UL) goto lchk;
- sn+=4;
- --n;
- }
- goto lchk;
- ld:
-
- l = (stbsp__uint32) ( sn - s );
- // clamp to precision
- if ( l > (stbsp__uint32)pr ) l = pr;
- lead[0]=0; tail[0]=0; pr = 0; dp = 0; cs = 0;
- // copy the string in
- goto scopy;
+ // get the string
+ s = va_arg(va, char *);
+ if (s == 0)
+ s = (char *)"null";
+ // get the length, limited to desired precision
+ // always limit to ~0u chars since our counts are 32b
+ l = stbsp__strlen_limited(s, (pr >= 0) ? pr : ~0u);
+ lead[0] = 0;
+ tail[0] = 0;
+ pr = 0;
+ dp = 0;
+ cs = 0;
+ // copy the string in
+ goto scopy;
case 'c': // char
- // get the character
- s = num + STBSP__NUMSZ -1; *s = (char)va_arg(va,int);
- l = 1;
- lead[0]=0; tail[0]=0; pr = 0; dp = 0; cs = 0;
- goto scopy;
+ // get the character
+ s = num + STBSP__NUMSZ - 1;
+ *s = (char)va_arg(va, int);
+ l = 1;
+ lead[0] = 0;
+ tail[0] = 0;
+ pr = 0;
+ dp = 0;
+ cs = 0;
+ goto scopy;
case 'n': // weird write-bytes specifier
- { int * d = va_arg(va,int*);
- *d = tlen + (int)( bf - buf ); }
- break;
+ {
+ int *d = va_arg(va, int *);
+ *d = tlen + (int)(bf - buf);
+ } break;
#ifdef STB_SPRINTF_NOFLOAT
- case 'A': // float
+ case 'A': // float
+ case 'a': // hex float
+ case 'G': // float
+ case 'g': // float
+ case 'E': // float
+ case 'e': // float
+ case 'f': // float
+ va_arg(va, double); // eat it
+ s = (char *)"No float";
+ l = 8;
+ lead[0] = 0;
+ tail[0] = 0;
+ pr = 0;
+ cs = 0;
+ STBSP__NOTUSED(dp);
+ goto scopy;
+#else
+ case 'A': // hex float
case 'a': // hex float
+ h = (f[0] == 'A') ? hexu : hex;
+ fv = va_arg(va, double);
+ if (pr == -1)
+ pr = 6; // default is 6
+ // read the double into a string
+ if (stbsp__real_to_parts((stbsp__int64 *)&n64, &dp, fv))
+ fl |= STBSP__NEGATIVE;
+
+ s = num + 64;
+
+ stbsp__lead_sign(fl, lead);
+
+ if (dp == -1023)
+ dp = (n64) ? -1022 : 0;
+ else
+ n64 |= (((stbsp__uint64)1) << 52);
+ n64 <<= (64 - 56);
+ if (pr < 15)
+ n64 += ((((stbsp__uint64)8) << 56) >> (pr * 4));
+// add leading chars
+
+#ifdef STB_SPRINTF_MSVC_MODE
+ *s++ = '0';
+ *s++ = 'x';
+#else
+ lead[1 + lead[0]] = '0';
+ lead[2 + lead[0]] = 'x';
+ lead[0] += 2;
+#endif
+ *s++ = h[(n64 >> 60) & 15];
+ n64 <<= 4;
+ if (pr)
+ *s++ = stbsp__period;
+ sn = s;
+
+ // print the bits
+ n = pr;
+ if (n > 13)
+ n = 13;
+ if (pr > (stbsp__int32)n)
+ tz = pr - n;
+ pr = 0;
+ while (n--) {
+ *s++ = h[(n64 >> 60) & 15];
+ n64 <<= 4;
+ }
+
+ // print the expo
+ tail[1] = h[17];
+ if (dp < 0) {
+ tail[2] = '-';
+ dp = -dp;
+ } else
+ tail[2] = '+';
+ n = (dp >= 1000) ? 6 : ((dp >= 100) ? 5 : ((dp >= 10) ? 4 : 3));
+ tail[0] = (char)n;
+ for (;;) {
+ tail[n] = '0' + dp % 10;
+ if (n <= 3)
+ break;
+ --n;
+ dp /= 10;
+ }
+
+ dp = (int)(s - sn);
+ l = (int)(s - (num + 64));
+ s = num + 64;
+ cs = 1 + (3 << 24);
+ goto scopy;
+
case 'G': // float
case 'g': // float
+ h = (f[0] == 'G') ? hexu : hex;
+ fv = va_arg(va, double);
+ if (pr == -1)
+ pr = 6;
+ else if (pr == 0)
+ pr = 1; // default is 6
+ // read the double into a string
+ if (stbsp__real_to_str(&sn, &l, num, &dp, fv, (pr - 1) | 0x80000000))
+ fl |= STBSP__NEGATIVE;
+
+ // clamp the precision and delete extra zeros after clamp
+ n = pr;
+ if (l > (stbsp__uint32)pr)
+ l = pr;
+ while ((l > 1) && (pr) && (sn[l - 1] == '0')) {
+ --pr;
+ --l;
+ }
+
+ // should we use %e
+ if ((dp <= -4) || (dp > (stbsp__int32)n)) {
+ if (pr > (stbsp__int32)l)
+ pr = l - 1;
+ else if (pr)
+ --pr; // when using %e, there is one digit before the decimal
+ goto doexpfromg;
+ }
+ // this is the insane action to get the pr to match %g semantics for %f
+ if (dp > 0) {
+ pr = (dp < (stbsp__int32)l) ? l - dp : 0;
+ } else {
+ pr = -dp + ((pr > (stbsp__int32)l) ? (stbsp__int32) l : pr);
+ }
+ goto dofloatfromg;
+
case 'E': // float
case 'e': // float
- case 'f': // float
- va_arg(va,double); // eat it
- s = (char*)"No float";
- l = 8;
- lead[0]=0; tail[0]=0; pr = 0; dp = 0; cs = 0;
- goto scopy;
-#else
- case 'A': // float
- h=hexu;
- goto hexfloat;
-
- case 'a': // hex float
- h=hex;
- hexfloat:
- fv = va_arg(va,double);
- if (pr==-1) pr=6; // default is 6
- // read the double into a string
- if ( stbsp__real_to_parts( (stbsp__int64*)&n64, &dp, fv ) )
- fl |= STBSP__NEGATIVE;
-
- s = num+64;
-
- stbsp__lead_sign(fl, lead);
-
- if (dp==-1023) dp=(n64)?-1022:0; else n64|=(((stbsp__uint64)1)<<52);
- n64<<=(64-56);
- if (pr<15) n64+=((((stbsp__uint64)8)<<56)>>(pr*4));
- // add leading chars
+ h = (f[0] == 'E') ? hexu : hex;
+ fv = va_arg(va, double);
+ if (pr == -1)
+ pr = 6; // default is 6
+ // read the double into a string
+ if (stbsp__real_to_str(&sn, &l, num, &dp, fv, pr | 0x80000000))
+ fl |= STBSP__NEGATIVE;
+ doexpfromg:
+ tail[0] = 0;
+ stbsp__lead_sign(fl, lead);
+ if (dp == STBSP__SPECIAL) {
+ s = (char *)sn;
+ cs = 0;
+ pr = 0;
+ goto scopy;
+ }
+ s = num + 64;
+ // handle leading chars
+ *s++ = sn[0];
- #ifdef STB_SPRINTF_MSVC_MODE
- *s++='0';*s++='x';
- #else
- lead[1+lead[0]]='0'; lead[2+lead[0]]='x'; lead[0]+=2;
- #endif
- *s++=h[(n64>>60)&15]; n64<<=4;
- if ( pr ) *s++=stbsp__period;
- sn = s;
-
- // print the bits
- n = pr; if (n>13) n = 13; if (pr>(stbsp__int32)n) tz=pr-n; pr = 0;
- while(n--) { *s++=h[(n64>>60)&15]; n64<<=4; }
-
- // print the expo
- tail[1]=h[17];
- if (dp<0) { tail[2]='-'; dp=-dp;} else tail[2]='+';
- n = (dp>=1000)?6:((dp>=100)?5:((dp>=10)?4:3));
- tail[0]=(char)n;
- for(;;) { tail[n]='0'+dp%10; if (n<=3) break; --n; dp/=10; }
-
- dp = (int)(s-sn);
- l = (int)(s-(num+64));
- s = num+64;
- cs = 1 + (3<<24);
- goto scopy;
-
- case 'G': // float
- h=hexu;
- goto dosmallfloat;
+ if (pr)
+ *s++ = stbsp__period;
- case 'g': // float
- h=hex;
- dosmallfloat:
- fv = va_arg(va,double);
- if (pr==-1) pr=6; else if (pr==0) pr = 1; // default is 6
- // read the double into a string
- if ( stbsp__real_to_str( &sn, &l, num, &dp, fv, (pr-1)|0x80000000 ) )
- fl |= STBSP__NEGATIVE;
-
- n = pr;
-
- // should we use %e
- if ((dp<=-4)||(dp>(stbsp__int32)n))
- {
- // clamp the precision and delete extra zeros after clamp
- if ( l > (stbsp__uint32)pr ) l = pr; while ((l>1)&&(pr)&&(sn[l-1]=='0')) { --pr; --l; }
- if ( pr > (stbsp__int32)l ) pr = l-1; else if ( pr ) --pr; // when using %e, there is one digit before the decimal
- goto doexpfromg;
- } else {
- if (*sn == '0') dp--; // (lritter) for a zero, insert a trailing 0.
- unsigned int minl = (dp > 0)?(dp+1):1; // (lritter) keep at least one zero after the dot
- // clamp the precision and delete extra zeros after clamp
- if ( l > (stbsp__uint32)pr ) l = pr; while ((l>minl)&&(pr)&&(sn[l-1]=='0')) { --pr; --l; }
- }
- // this is the insane action to get the pr to match %g sematics for %f
- if(dp>0) { pr=(dp<(stbsp__int32)l)?l-dp:0; } else { pr = -dp+((pr>(stbsp__int32)l)?l:pr); }
- goto dofloatfromg;
-
- case 'E': // float
- h=hexu;
- goto doexp;
-
- case 'e': // float
- h=hex;
- doexp:
- fv = va_arg(va,double);
- if (pr==-1) pr=6; // default is 6
- // read the double into a string
- if ( stbsp__real_to_str( &sn, &l, num, &dp, fv, pr|0x80000000 ) )
- fl |= STBSP__NEGATIVE;
- doexpfromg:
- tail[0]=0;
- stbsp__lead_sign(fl, lead);
- if ( dp == STBSP__SPECIAL ) { s=(char*)sn; cs=0; pr=0; goto scopy; }
- s=num+64;
- // handle leading chars
- *s++=sn[0];
-
- if (pr) *s++=stbsp__period;
-
- // handle after decimal
- if ((l-1)>(stbsp__uint32)pr) l=pr+1;
- for(n=1;n<l;n++) *s++=sn[n];
- // trailing zeros
- tz = pr-(l-1); pr=0;
- // dump expo
- tail[1]=h[0xe];
- dp -= 1;
- if (dp<0) { tail[2]='-'; dp=-dp;} else tail[2]='+';
- #ifdef STB_SPRINTF_MSVC_MODE
- n = 5;
- #else
- n = (dp>=100)?5:4;
- #endif
- tail[0]=(char)n;
- for(;;) { tail[n]='0'+dp%10; if (n<=3) break; --n; dp/=10; }
- cs = 1 + (3<<24); // how many tens
- goto flt_lead;
+ // handle after decimal
+ if ((l - 1) > (stbsp__uint32)pr)
+ l = pr + 1;
+ for (n = 1; n < l; n++)
+ *s++ = sn[n];
+ // trailing zeros
+ tz = pr - (l - 1);
+ pr = 0;
+ // dump expo
+ tail[1] = h[0xe];
+ dp -= 1;
+ if (dp < 0) {
+ tail[2] = '-';
+ dp = -dp;
+ } else
+ tail[2] = '+';
+#ifdef STB_SPRINTF_MSVC_MODE
+ n = 5;
+#else
+ n = (dp >= 100) ? 5 : 4;
+#endif
+ tail[0] = (char)n;
+ for (;;) {
+ tail[n] = '0' + dp % 10;
+ if (n <= 3)
+ break;
+ --n;
+ dp /= 10;
+ }
+ cs = 1 + (3 << 24); // how many tens
+ goto flt_lead;
case 'f': // float
- fv = va_arg(va,double);
- doafloat:
- // do kilos
- if (fl&STBSP__METRIC_SUFFIX)
- {
+ fv = va_arg(va, double);
+ doafloat:
+ // do kilos
+ if (fl & STBSP__METRIC_SUFFIX) {
double divisor;
- divisor=1000.0f;
- if (fl&STBSP__METRIC_1024) divisor = 1024.0;
- while(fl<0x4000000) { if ((fv<divisor) && (fv>-divisor)) break; fv/=divisor; fl+=0x1000000; }
- }
- if (pr==-1) pr=6; // default is 6
- // read the double into a string
- if ( stbsp__real_to_str( &sn, &l, num, &dp, fv, pr ) )
- fl |= STBSP__NEGATIVE;
- dofloatfromg:
- tail[0]=0;
- stbsp__lead_sign(fl, lead);
- if ( dp == STBSP__SPECIAL ) { s=(char*)sn; cs=0; pr=0; goto scopy; }
- s=num+64;
+ divisor = 1000.0f;
+ if (fl & STBSP__METRIC_1024)
+ divisor = 1024.0;
+ while (fl < 0x4000000) {
+ if ((fv < divisor) && (fv > -divisor))
+ break;
+ fv /= divisor;
+ fl += 0x1000000;
+ }
+ }
+ if (pr == -1)
+ pr = 6; // default is 6
+ // read the double into a string
+ if (stbsp__real_to_str(&sn, &l, num, &dp, fv, pr))
+ fl |= STBSP__NEGATIVE;
+ dofloatfromg:
+ tail[0] = 0;
+ stbsp__lead_sign(fl, lead);
+ if (dp == STBSP__SPECIAL) {
+ s = (char *)sn;
+ cs = 0;
+ pr = 0;
+ goto scopy;
+ }
+ s = num + 64;
- // handle the three decimal varieties
- if (dp<=0)
- {
- stbsp__int32 i;
- // handle 0.000*000xxxx
- *s++='0'; if (pr) *s++=stbsp__period;
- n=-dp; if((stbsp__int32)n>pr) n=pr; i=n; while(i) { if ((((stbsp__uintptr)s)&3)==0) break; *s++='0'; --i; } while(i>=4) { *(stbsp__uint32*)s=0x30303030; s+=4; i-=4; } while(i) { *s++='0'; --i; }
- if ((stbsp__int32)(l+n)>pr) l=pr-n; i=l; while(i) { *s++=*sn++; --i; }
- tz = pr-(n+l);
- cs = 1 + (3<<24); // how many tens did we write (for commas below)
- }
- else
- {
- cs = (fl&STBSP__TRIPLET_COMMA)?((600-(stbsp__uint32)dp)%3):0;
- if ((stbsp__uint32)dp>=l)
- {
- // handle xxxx000*000.0
- n=0; for(;;) { if ((fl&STBSP__TRIPLET_COMMA) && (++cs==4)) { cs = 0; *s++=stbsp__comma; } else { *s++=sn[n]; ++n; if (n>=l) break; } }
- if (n<(stbsp__uint32)dp)
- {
- n = dp - n;
- if ((fl&STBSP__TRIPLET_COMMA)==0) { while(n) { if ((((stbsp__uintptr)s)&3)==0) break; *s++='0'; --n; } while(n>=4) { *(stbsp__uint32*)s=0x30303030; s+=4; n-=4; } }
- while(n) { if ((fl&STBSP__TRIPLET_COMMA) && (++cs==4)) { cs = 0; *s++=stbsp__comma; } else { *s++='0'; --n; } }
+ // handle the three decimal varieties
+ if (dp <= 0) {
+ stbsp__int32 i;
+ // handle 0.000*000xxxx
+ *s++ = '0';
+ if (pr)
+ *s++ = stbsp__period;
+ n = -dp;
+ if ((stbsp__int32)n > pr)
+ n = pr;
+ i = n;
+ while (i) {
+ if ((((stbsp__uintptr)s) & 3) == 0)
+ break;
+ *s++ = '0';
+ --i;
+ }
+ while (i >= 4) {
+ *(stbsp__uint32 *)s = 0x30303030;
+ s += 4;
+ i -= 4;
+ }
+ while (i) {
+ *s++ = '0';
+ --i;
+ }
+ if ((stbsp__int32)(l + n) > pr)
+ l = pr - n;
+ i = l;
+ while (i) {
+ *s++ = *sn++;
+ --i;
}
- cs = (int)(s-(num+64)) + (3<<24); // cs is how many tens
- if (pr) { *s++=stbsp__period; tz=pr;}
- }
- else
- {
- // handle xxxxx.xxxx000*000
- n=0; for(;;) { if ((fl&STBSP__TRIPLET_COMMA) && (++cs==4)) { cs = 0; *s++=stbsp__comma; } else { *s++=sn[n]; ++n; if (n>=(stbsp__uint32)dp) break; } }
- cs = (int)(s-(num+64)) + (3<<24); // cs is how many tens
- if (pr) *s++=stbsp__period;
- if ((l-dp)>(stbsp__uint32)pr) l=pr+dp;
- while(n<l) { *s++=sn[n]; ++n; }
- tz = pr-(l-dp);
- }
- }
- pr = 0;
+ tz = pr - (n + l);
+ cs = 1 + (3 << 24); // how many tens did we write (for commas below)
+ } else {
+ cs = (fl & STBSP__TRIPLET_COMMA) ? ((600 - (stbsp__uint32)dp) % 3) : 0;
+ if ((stbsp__uint32)dp >= l) {
+ // handle xxxx000*000.0
+ n = 0;
+ for (;;) {
+ if ((fl & STBSP__TRIPLET_COMMA) && (++cs == 4)) {
+ cs = 0;
+ *s++ = stbsp__comma;
+ } else {
+ *s++ = sn[n];
+ ++n;
+ if (n >= l)
+ break;
+ }
+ }
+ if (n < (stbsp__uint32)dp) {
+ n = dp - n;
+ if ((fl & STBSP__TRIPLET_COMMA) == 0) {
+ while (n) {
+ if ((((stbsp__uintptr)s) & 3) == 0)
+ break;
+ *s++ = '0';
+ --n;
+ }
+ while (n >= 4) {
+ *(stbsp__uint32 *)s = 0x30303030;
+ s += 4;
+ n -= 4;
+ }
+ }
+ while (n) {
+ if ((fl & STBSP__TRIPLET_COMMA) && (++cs == 4)) {
+ cs = 0;
+ *s++ = stbsp__comma;
+ } else {
+ *s++ = '0';
+ --n;
+ }
+ }
+ }
+ cs = (int)(s - (num + 64)) + (3 << 24); // cs is how many tens
+ if (pr) {
+ *s++ = stbsp__period;
+ tz = pr;
+ }
+ } else {
+ // handle xxxxx.xxxx000*000
+ n = 0;
+ for (;;) {
+ if ((fl & STBSP__TRIPLET_COMMA) && (++cs == 4)) {
+ cs = 0;
+ *s++ = stbsp__comma;
+ } else {
+ *s++ = sn[n];
+ ++n;
+ if (n >= (stbsp__uint32)dp)
+ break;
+ }
+ }
+ cs = (int)(s - (num + 64)) + (3 << 24); // cs is how many tens
+ if (pr)
+ *s++ = stbsp__period;
+ if ((l - dp) > (stbsp__uint32)pr)
+ l = pr + dp;
+ while (n < l) {
+ *s++ = sn[n];
+ ++n;
+ }
+ tz = pr - (l - dp);
+ }
+ }
+ pr = 0;
- // handle k,m,g,t
- if (fl&STBSP__METRIC_SUFFIX)
- {
+ // handle k,m,g,t
+ if (fl & STBSP__METRIC_SUFFIX) {
char idx;
- idx=1;
- if (fl&STBSP__METRIC_NOSPACE)
- idx=0;
- tail[0]=idx;
- tail[1]=' ';
+ idx = 1;
+ if (fl & STBSP__METRIC_NOSPACE)
+ idx = 0;
+ tail[0] = idx;
+ tail[1] = ' ';
{
- if (fl>>24)
- { // SI kilo is 'k', JEDEC and SI kibits are 'K'.
- if (fl&STBSP__METRIC_1024)
- tail[idx+1]="_KMGT"[fl>>24];
- else
- tail[idx+1]="_kMGT"[fl>>24];
- idx++;
- // If printing kibits and not in jedec, add the 'i'.
- if (fl&STBSP__METRIC_1024&&!(fl&STBSP__METRIC_JEDEC))
- {
- tail[idx+1]='i';
- idx++;
- }
- tail[0]=idx;
- }
+ if (fl >> 24) { // SI kilo is 'k', JEDEC and SI kibits are 'K'.
+ if (fl & STBSP__METRIC_1024)
+ tail[idx + 1] = "_KMGT"[fl >> 24];
+ else
+ tail[idx + 1] = "_kMGT"[fl >> 24];
+ idx++;
+ // If printing kibits and not in jedec, add the 'i'.
+ if (fl & STBSP__METRIC_1024 && !(fl & STBSP__METRIC_JEDEC)) {
+ tail[idx + 1] = 'i';
+ idx++;
+ }
+ tail[0] = idx;
+ }
}
- };
+ };
- flt_lead:
- // get the length that we copied
- l = (stbsp__uint32) ( s-(num+64) );
- s=num+64;
- goto scopy;
+ flt_lead:
+ // get the length that we copied
+ l = (stbsp__uint32)(s - (num + 64));
+ s = num + 64;
+ goto scopy;
#endif
case 'B': // upper binary
- h = hexu;
- goto binary;
-
case 'b': // lower binary
- h = hex;
- binary:
- lead[0]=0;
- if (fl&STBSP__LEADING_0X) { lead[0]=2;lead[1]='0';lead[2]=h[0xb]; }
- l=(8<<4)|(1<<8);
- goto radixnum;
+ h = (f[0] == 'B') ? hexu : hex;
+ lead[0] = 0;
+ if (fl & STBSP__LEADING_0X) {
+ lead[0] = 2;
+ lead[1] = '0';
+ lead[2] = h[0xb];
+ }
+ l = (8 << 4) | (1 << 8);
+ goto radixnum;
case 'o': // octal
- h = hexu;
- lead[0]=0;
- if (fl&STBSP__LEADING_0X) { lead[0]=1;lead[1]='0'; }
- l=(3<<4)|(3<<8);
- goto radixnum;
+ h = hexu;
+ lead[0] = 0;
+ if (fl & STBSP__LEADING_0X) {
+ lead[0] = 1;
+ lead[1] = '0';
+ }
+ l = (3 << 4) | (3 << 8);
+ goto radixnum;
case 'p': // pointer
- fl |= (sizeof(void*)==8)?STBSP__INTMAX:0;
- pr = sizeof(void*)*2;
- fl &= ~STBSP__LEADINGZERO; // 'p' only prints the pointer with zeros
- // drop through to X
+ fl |= (sizeof(void *) == 8) ? STBSP__INTMAX : 0;
+ pr = sizeof(void *) * 2;
+ fl &= ~STBSP__LEADINGZERO; // 'p' only prints the pointer with zeros
+ // fall through - to X
- case 'X': // upper binary
- h = hexu;
- goto dohexb;
+ case 'X': // upper hex
+ case 'x': // lower hex
+ h = (f[0] == 'X') ? hexu : hex;
+ l = (4 << 4) | (4 << 8);
+ lead[0] = 0;
+ if (fl & STBSP__LEADING_0X) {
+ lead[0] = 2;
+ lead[1] = '0';
+ lead[2] = h[16];
+ }
+ radixnum:
+ // get the number
+ if (fl & STBSP__INTMAX)
+ n64 = va_arg(va, stbsp__uint64);
+ else
+ n64 = va_arg(va, stbsp__uint32);
- case 'x': // lower binary
- h = hex; dohexb:
- l=(4<<4)|(4<<8);
- lead[0]=0;
- if (fl&STBSP__LEADING_0X) { lead[0]=2;lead[1]='0';lead[2]=h[16]; }
- radixnum:
- // get the number
- if ( fl&STBSP__INTMAX )
- n64 = va_arg(va,stbsp__uint64);
- else
- n64 = va_arg(va,stbsp__uint32);
-
- s = num + STBSP__NUMSZ; dp = 0;
- // clear tail, and clear leading if value is zero
- tail[0]=0; if (n64==0) { lead[0]=0; if (pr==0) { l=0; cs = ( ((l>>4)&15)) << 24; goto scopy; } }
- // convert to string
- for(;;) { *--s = h[n64&((1<<(l>>8))-1)]; n64>>=(l>>8); if ( ! ( (n64) || ((stbsp__int32) ( (num+STBSP__NUMSZ) - s ) < pr ) ) ) break; if ( fl&STBSP__TRIPLET_COMMA) { ++l; if ((l&15)==((l>>4)&15)) { l&=~15; *--s=stbsp__comma; } } };
- // get the tens and the comma pos
- cs = (stbsp__uint32) ( (num+STBSP__NUMSZ) - s ) + ( ( ((l>>4)&15)) << 24 );
- // get the length that we copied
- l = (stbsp__uint32) ( (num+STBSP__NUMSZ) - s );
- // copy it
- goto scopy;
+ s = num + STBSP__NUMSZ;
+ dp = 0;
+ // clear tail, and clear leading if value is zero
+ tail[0] = 0;
+ if (n64 == 0) {
+ lead[0] = 0;
+ if (pr == 0) {
+ l = 0;
+ cs = 0;
+ goto scopy;
+ }
+ }
+ // convert to string
+ for (;;) {
+ *--s = h[n64 & ((1 << (l >> 8)) - 1)];
+ n64 >>= (l >> 8);
+ if (!((n64) || ((stbsp__int32)((num + STBSP__NUMSZ) - s) < pr)))
+ break;
+ if (fl & STBSP__TRIPLET_COMMA) {
+ ++l;
+ if ((l & 15) == ((l >> 4) & 15)) {
+ l &= ~15;
+ *--s = stbsp__comma;
+ }
+ }
+ };
+ // get the tens and the comma pos
+ cs = (stbsp__uint32)((num + STBSP__NUMSZ) - s) + ((((l >> 4) & 15)) << 24);
+ // get the length that we copied
+ l = (stbsp__uint32)((num + STBSP__NUMSZ) - s);
+ // copy it
+ goto scopy;
case 'u': // unsigned
case 'i':
case 'd': // integer
- // get the integer and abs it
- if ( fl&STBSP__INTMAX )
- {
- stbsp__int64 i64 = va_arg(va,stbsp__int64); n64 = (stbsp__uint64)i64; if ((f[0]!='u') && (i64<0)) { n64=(stbsp__uint64)-i64; fl|=STBSP__NEGATIVE; }
- }
- else
- {
- stbsp__int32 i = va_arg(va,stbsp__int32); n64 = (stbsp__uint32)i; if ((f[0]!='u') && (i<0)) { n64=(stbsp__uint32)-i; fl|=STBSP__NEGATIVE; }
- }
+ // get the integer and abs it
+ if (fl & STBSP__INTMAX) {
+ stbsp__int64 i64 = va_arg(va, stbsp__int64);
+ n64 = (stbsp__uint64)i64;
+ if ((f[0] != 'u') && (i64 < 0)) {
+ n64 = (stbsp__uint64)-i64;
+ fl |= STBSP__NEGATIVE;
+ }
+ } else {
+ stbsp__int32 i = va_arg(va, stbsp__int32);
+ n64 = (stbsp__uint32)i;
+ if ((f[0] != 'u') && (i < 0)) {
+ n64 = (stbsp__uint32)-i;
+ fl |= STBSP__NEGATIVE;
+ }
+ }
- #ifndef STB_SPRINTF_NOFLOAT
- if (fl&STBSP__METRIC_SUFFIX) { if (n64<1024) pr=0; else if (pr==-1) pr=1; fv=(double)(stbsp__int64)n64; goto doafloat; }
- #endif
+#ifndef STB_SPRINTF_NOFLOAT
+ if (fl & STBSP__METRIC_SUFFIX) {
+ if (n64 < 1024)
+ pr = 0;
+ else if (pr == -1)
+ pr = 1;
+ fv = (double)(stbsp__int64)n64;
+ goto doafloat;
+ }
+#endif
- // convert to string
- s = num+STBSP__NUMSZ; l=0;
+ // convert to string
+ s = num + STBSP__NUMSZ;
+ l = 0;
- for(;;)
- {
- // do in 32-bit chunks (avoid lots of 64-bit divides even with constant denominators)
- char * o=s-8;
- if (n64>=100000000) { n = (stbsp__uint32)( n64 % 100000000); n64 /= 100000000; } else {n = (stbsp__uint32)n64; n64 = 0; }
- if((fl&STBSP__TRIPLET_COMMA)==0) { while(n) { s-=2; *(stbsp__uint16*)s=*(stbsp__uint16*)&stbsp__digitpair[(n%100)*2]; n/=100; } }
- while (n) { if ( ( fl&STBSP__TRIPLET_COMMA) && (l++==3) ) { l=0; *--s=stbsp__comma; --o; } else { *--s=(char)(n%10)+'0'; n/=10; } }
- if (n64==0) { if ((s[0]=='0') && (s!=(num+STBSP__NUMSZ))) ++s; break; }
- while (s!=o) if ( ( fl&STBSP__TRIPLET_COMMA) && (l++==3) ) { l=0; *--s=stbsp__comma; --o; } else { *--s='0'; }
- }
+ for (;;) {
+ // do in 32-bit chunks (avoid lots of 64-bit divides even with constant denominators)
+ char *o = s - 8;
+ if (n64 >= 100000000) {
+ n = (stbsp__uint32)(n64 % 100000000);
+ n64 /= 100000000;
+ } else {
+ n = (stbsp__uint32)n64;
+ n64 = 0;
+ }
+ if ((fl & STBSP__TRIPLET_COMMA) == 0) {
+ do {
+ s -= 2;
+ *(stbsp__uint16 *)s = *(stbsp__uint16 *)&stbsp__digitpair.pair[(n % 100) * 2];
+ n /= 100;
+ } while (n);
+ }
+ while (n) {
+ if ((fl & STBSP__TRIPLET_COMMA) && (l++ == 3)) {
+ l = 0;
+ *--s = stbsp__comma;
+ --o;
+ } else {
+ *--s = (char)(n % 10) + '0';
+ n /= 10;
+ }
+ }
+ if (n64 == 0) {
+ if ((s[0] == '0') && (s != (num + STBSP__NUMSZ)))
+ ++s;
+ break;
+ }
+ while (s != o)
+ if ((fl & STBSP__TRIPLET_COMMA) && (l++ == 3)) {
+ l = 0;
+ *--s = stbsp__comma;
+ --o;
+ } else {
+ *--s = '0';
+ }
+ }
+
+ tail[0] = 0;
+ stbsp__lead_sign(fl, lead);
- tail[0]=0;
- stbsp__lead_sign(fl, lead);
+ // get the length that we copied
+ l = (stbsp__uint32)((num + STBSP__NUMSZ) - s);
+ if (l == 0) {
+ *--s = '0';
+ l = 1;
+ }
+ cs = l + (3 << 24);
+ if (pr < 0)
+ pr = 0;
- // get the length that we copied
- l = (stbsp__uint32) ( (num+STBSP__NUMSZ) - s ); if ( l == 0 ) { *--s='0'; l = 1; }
- cs = l + (3<<24);
- if (pr<0) pr = 0;
+ scopy:
+ // get fw=leading/trailing space, pr=leading zeros
+ if (pr < (stbsp__int32)l)
+ pr = l;
+ n = pr + lead[0] + tail[0] + tz;
+ if (fw < (stbsp__int32)n)
+ fw = n;
+ fw -= n;
+ pr -= l;
- scopy:
- // get fw=leading/trailing space, pr=leading zeros
- if (pr<(stbsp__int32)l) pr = l;
- n = pr + lead[0] + tail[0] + tz;
- if (fw<(stbsp__int32)n) fw = n;
- fw -= n;
- pr -= l;
+ // handle right justify and leading zeros
+ if ((fl & STBSP__LEFTJUST) == 0) {
+ if (fl & STBSP__LEADINGZERO) // if leading zeros, everything is in pr
+ {
+ pr = (fw > pr) ? fw : pr;
+ fw = 0;
+ } else {
+ fl &= ~STBSP__TRIPLET_COMMA; // if no leading zeros, then no commas
+ }
+ }
+
+ // copy the spaces and/or zeros
+ if (fw + pr) {
+ stbsp__int32 i;
+ stbsp__uint32 c;
+
+ // copy leading spaces (or when doing %8.4d stuff)
+ if ((fl & STBSP__LEFTJUST) == 0)
+ while (fw > 0) {
+ stbsp__cb_buf_clamp(i, fw);
+ fw -= i;
+ while (i) {
+ if ((((stbsp__uintptr)bf) & 3) == 0)
+ break;
+ *bf++ = ' ';
+ --i;
+ }
+ while (i >= 4) {
+ *(stbsp__uint32 *)bf = 0x20202020;
+ bf += 4;
+ i -= 4;
+ }
+ while (i) {
+ *bf++ = ' ';
+ --i;
+ }
+ stbsp__chk_cb_buf(1);
+ }
- // handle right justify and leading zeros
- if ( (fl&STBSP__LEFTJUST)==0 )
- {
- if (fl&STBSP__LEADINGZERO) // if leading zeros, everything is in pr
- {
- pr = (fw>pr)?fw:pr;
- fw = 0;
- }
- else
- {
- fl &= ~STBSP__TRIPLET_COMMA; // if no leading zeros, then no commas
- }
- }
+ // copy leader
+ sn = lead + 1;
+ while (lead[0]) {
+ stbsp__cb_buf_clamp(i, lead[0]);
+ lead[0] -= (char)i;
+ while (i) {
+ *bf++ = *sn++;
+ --i;
+ }
+ stbsp__chk_cb_buf(1);
+ }
- // copy the spaces and/or zeros
- if (fw+pr)
- {
- stbsp__int32 i; stbsp__uint32 c;
+ // copy leading zeros
+ c = cs >> 24;
+ cs &= 0xffffff;
+ cs = (fl & STBSP__TRIPLET_COMMA) ? ((stbsp__uint32)(c - ((pr + cs) % (c + 1)))) : 0;
+ while (pr > 0) {
+ stbsp__cb_buf_clamp(i, pr);
+ pr -= i;
+ if ((fl & STBSP__TRIPLET_COMMA) == 0) {
+ while (i) {
+ if ((((stbsp__uintptr)bf) & 3) == 0)
+ break;
+ *bf++ = '0';
+ --i;
+ }
+ while (i >= 4) {
+ *(stbsp__uint32 *)bf = 0x30303030;
+ bf += 4;
+ i -= 4;
+ }
+ }
+ while (i) {
+ if ((fl & STBSP__TRIPLET_COMMA) && (cs++ == c)) {
+ cs = 0;
+ *bf++ = stbsp__comma;
+ } else
+ *bf++ = '0';
+ --i;
+ }
+ stbsp__chk_cb_buf(1);
+ }
+ }
- // copy leading spaces (or when doing %8.4d stuff)
- if ( (fl&STBSP__LEFTJUST)==0 ) while(fw>0) { stbsp__cb_buf_clamp(i,fw); fw -= i; while(i) { if ((((stbsp__uintptr)bf)&3)==0) break; *bf++=' '; --i; } while(i>=4) { *(stbsp__uint32*)bf=0x20202020; bf+=4; i-=4; } while (i) {*bf++=' '; --i;} stbsp__chk_cb_buf(1); }
+ // copy leader if there is still one
+ sn = lead + 1;
+ while (lead[0]) {
+ stbsp__int32 i;
+ stbsp__cb_buf_clamp(i, lead[0]);
+ lead[0] -= (char)i;
+ while (i) {
+ *bf++ = *sn++;
+ --i;
+ }
+ stbsp__chk_cb_buf(1);
+ }
- // copy leader
- sn=lead+1; while(lead[0]) { stbsp__cb_buf_clamp(i,lead[0]); lead[0] -= (char)i; while (i) {*bf++=*sn++; --i;} stbsp__chk_cb_buf(1); }
-
- // copy leading zeros
- c = cs >> 24; cs &= 0xffffff;
- cs = (fl&STBSP__TRIPLET_COMMA)?((stbsp__uint32)(c-((pr+cs)%(c+1)))):0;
- while(pr>0) { stbsp__cb_buf_clamp(i,pr); pr -= i; if((fl&STBSP__TRIPLET_COMMA)==0) { while(i) { if ((((stbsp__uintptr)bf)&3)==0) break; *bf++='0'; --i; } while(i>=4) { *(stbsp__uint32*)bf=0x30303030; bf+=4; i-=4; } } while (i) { if((fl&STBSP__TRIPLET_COMMA) && (cs++==c)) { cs = 0; *bf++=stbsp__comma; } else *bf++='0'; --i; } stbsp__chk_cb_buf(1); }
- }
-
- // copy leader if there is still one
- sn=lead+1; while(lead[0]) { stbsp__int32 i; stbsp__cb_buf_clamp(i,lead[0]); lead[0] -= (char)i; while (i) {*bf++=*sn++; --i;} stbsp__chk_cb_buf(1); }
+ // copy the string
+ n = l;
+ while (n) {
+ stbsp__int32 i;
+ stbsp__cb_buf_clamp(i, n);
+ n -= i;
+ STBSP__UNALIGNED(while (i >= 4) {
+ *(stbsp__uint32 volatile *)bf = *(stbsp__uint32 volatile *)s;
+ bf += 4;
+ s += 4;
+ i -= 4;
+ })
+ while (i) {
+ *bf++ = *s++;
+ --i;
+ }
+ stbsp__chk_cb_buf(1);
+ }
- // copy the string
- n = l; while (n) { stbsp__int32 i; stbsp__cb_buf_clamp(i,n); n-=i; STBSP__UNALIGNED( while(i>=4) { *(stbsp__uint32*)bf=*(stbsp__uint32*)s; bf+=4; s+=4; i-=4; } ) while (i) {*bf++=*s++; --i;} stbsp__chk_cb_buf(1); }
-
- // copy trailing zeros
- while(tz) { stbsp__int32 i; stbsp__cb_buf_clamp(i,tz); tz -= i; while(i) { if ((((stbsp__uintptr)bf)&3)==0) break; *bf++='0'; --i; } while(i>=4) { *(stbsp__uint32*)bf=0x30303030; bf+=4; i-=4; } while (i) {*bf++='0'; --i;} stbsp__chk_cb_buf(1); }
+ // copy trailing zeros
+ while (tz) {
+ stbsp__int32 i;
+ stbsp__cb_buf_clamp(i, tz);
+ tz -= i;
+ while (i) {
+ if ((((stbsp__uintptr)bf) & 3) == 0)
+ break;
+ *bf++ = '0';
+ --i;
+ }
+ while (i >= 4) {
+ *(stbsp__uint32 *)bf = 0x30303030;
+ bf += 4;
+ i -= 4;
+ }
+ while (i) {
+ *bf++ = '0';
+ --i;
+ }
+ stbsp__chk_cb_buf(1);
+ }
- // copy tail if there is one
- sn=tail+1; while(tail[0]) { stbsp__int32 i; stbsp__cb_buf_clamp(i,tail[0]); tail[0] -= (char)i; while (i) {*bf++=*sn++; --i;} stbsp__chk_cb_buf(1); }
+ // copy tail if there is one
+ sn = tail + 1;
+ while (tail[0]) {
+ stbsp__int32 i;
+ stbsp__cb_buf_clamp(i, tail[0]);
+ tail[0] -= (char)i;
+ while (i) {
+ *bf++ = *sn++;
+ --i;
+ }
+ stbsp__chk_cb_buf(1);
+ }
- // handle the left justify
- if (fl&STBSP__LEFTJUST) if (fw>0) { while (fw) { stbsp__int32 i; stbsp__cb_buf_clamp(i,fw); fw-=i; while(i) { if ((((stbsp__uintptr)bf)&3)==0) break; *bf++=' '; --i; } while(i>=4) { *(stbsp__uint32*)bf=0x20202020; bf+=4; i-=4; } while (i--) *bf++=' '; stbsp__chk_cb_buf(1); } }
- break;
+ // handle the left justify
+ if (fl & STBSP__LEFTJUST)
+ if (fw > 0) {
+ while (fw) {
+ stbsp__int32 i;
+ stbsp__cb_buf_clamp(i, fw);
+ fw -= i;
+ while (i) {
+ if ((((stbsp__uintptr)bf) & 3) == 0)
+ break;
+ *bf++ = ' ';
+ --i;
+ }
+ while (i >= 4) {
+ *(stbsp__uint32 *)bf = 0x20202020;
+ bf += 4;
+ i -= 4;
+ }
+ while (i--)
+ *bf++ = ' ';
+ stbsp__chk_cb_buf(1);
+ }
+ }
+ break;
default: // unknown, just copy code
- s = num + STBSP__NUMSZ -1; *s = f[0];
- l = 1;
- fw=pr=fl=0;
- lead[0]=0; tail[0]=0; pr = 0; dp = 0; cs = 0;
- goto scopy;
- }
- ++f;
- }
- endfmt:
+ s = num + STBSP__NUMSZ - 1;
+ *s = f[0];
+ l = 1;
+ fw = fl = 0;
+ lead[0] = 0;
+ tail[0] = 0;
+ pr = 0;
+ dp = 0;
+ cs = 0;
+ goto scopy;
+ }
+ ++f;
+ }
+endfmt:
- if (!callback)
- *bf = 0;
- else
- stbsp__flush_cb();
+ if (!callback)
+ *bf = 0;
+ else
+ stbsp__flush_cb();
- done:
- return tlen + (int)(bf-buf);
+done:
+ return tlen + (int)(bf - buf);
}
// cleanup
@@ 844,101 1373,105 @@ STBSP__PUBLICDEF int STB_SPRINTF_DECORAT
// ============================================================================
// wrapper functions
-STBSP__PUBLICDEF int STB_SPRINTF_DECORATE( sprintf )( char * buf, char const * fmt, ... )
+STBSP__PUBLICDEF int STB_SPRINTF_DECORATE(sprintf)(char *buf, char const *fmt, ...)
{
- int result;
- va_list va;
- va_start( va, fmt );
- result = STB_SPRINTF_DECORATE( vsprintfcb )( 0, 0, buf, fmt, va );
- va_end(va);
- return result;
+ int result;
+ va_list va;
+ va_start(va, fmt);
+ result = STB_SPRINTF_DECORATE(vsprintfcb)(0, 0, buf, fmt, va);
+ va_end(va);
+ return result;
}
-typedef struct stbsp__context
-{
- char * buf;
- int count;
- char tmp[ STB_SPRINTF_MIN ];
+typedef struct stbsp__context {
+ char *buf;
+ int count;
+ int length;
+ char tmp[STB_SPRINTF_MIN];
} stbsp__context;
-static char * stbsp__clamp_callback( char * buf, void * user, int len )
+static char *stbsp__clamp_callback(const char *buf, void *user, int len)
{
- stbsp__context * c = (stbsp__context*)user;
+ stbsp__context *c = (stbsp__context *)user;
+ c->length += len;
- if ( len > c->count ) len = c->count;
+ if (len > c->count)
+ len = c->count;
- if (len)
- {
- if ( buf != c->buf )
- {
- char * s, * d, * se;
- d = c->buf; s = buf; se = buf+len;
- do{ *d++ = *s++; } while (s<se);
- }
- c->buf += len;
- c->count -= len;
- }
+ if (len) {
+ if (buf != c->buf) {
+ const char *s, *se;
+ char *d;
+ d = c->buf;
+ s = buf;
+ se = buf + len;
+ do {
+ *d++ = *s++;
+ } while (s < se);
+ }
+ c->buf += len;
+ c->count -= len;
+ }
- if ( c->count <= 0 ) return 0;
- return ( c->count >= STB_SPRINTF_MIN ) ? c->buf : c->tmp; // go direct into buffer if you can
+ if (c->count <= 0)
+ return c->tmp;
+ return (c->count >= STB_SPRINTF_MIN) ? c->buf : c->tmp; // go direct into buffer if you can
}
-static char * stbsp__count_clamp_callback( char * buf, void * user, int len )
+static char * stbsp__count_clamp_callback( const char * buf, void * user, int len )
{
- stbsp__context * c = (stbsp__context*)user;
+ stbsp__context * c = (stbsp__context*)user;
+ (void) sizeof(buf);
- c->count += len;
- return c->tmp; // go direct into buffer if you can
+ c->length += len;
+ return c->tmp; // go direct into buffer if you can
}
STBSP__PUBLICDEF int STB_SPRINTF_DECORATE( vsnprintf )( char * buf, int count, char const * fmt, va_list va )
{
- stbsp__context c;
- int l;
+ stbsp__context c;
+
+ if ( (count == 0) && !buf )
+ {
+ c.length = 0;
- // (lritter) support querying length without providing a buffer
- if ( (count == 0) && !buf )
- {
- c.count = 0;
+ STB_SPRINTF_DECORATE( vsprintfcb )( stbsp__count_clamp_callback, &c, c.tmp, fmt, va );
+ }
+ else
+ {
+ int l;
- STB_SPRINTF_DECORATE( vsprintfcb )( stbsp__count_clamp_callback, &c, c.tmp, fmt, va );
- l = c.count;
- }
- else
- {
- if ( count == 0 )
- return 0;
+ c.buf = buf;
+ c.count = count;
+ c.length = 0;
- c.buf = buf;
- c.count = count;
+ STB_SPRINTF_DECORATE( vsprintfcb )( stbsp__clamp_callback, &c, stbsp__clamp_callback(0,&c,0), fmt, va );
- STB_SPRINTF_DECORATE( vsprintfcb )( stbsp__clamp_callback, &c, stbsp__clamp_callback(0,&c,0), fmt, va );
+ // zero-terminate
+ l = (int)( c.buf - buf );
+ if ( l >= count ) // should never be greater, only equal (or less) than count
+ l = count - 1;
+ buf[l] = 0;
+ }
- // zero-terminate
- l = (int)( c.buf - buf );
- if ( l >= count ) // should never be greater, only equal (or less) than count
- l = count - 1;
- buf[l] = 0;
- }
-
- return l;
+ return c.length;
}
-STBSP__PUBLICDEF int STB_SPRINTF_DECORATE( snprintf )( char * buf, int count, char const * fmt, ... )
+STBSP__PUBLICDEF int STB_SPRINTF_DECORATE(snprintf)(char *buf, int count, char const *fmt, ...)
{
- int result;
- va_list va;
- va_start( va, fmt );
+ int result;
+ va_list va;
+ va_start(va, fmt);
- result = STB_SPRINTF_DECORATE( vsnprintf )( buf, count, fmt, va );
- va_end(va);
+ result = STB_SPRINTF_DECORATE(vsnprintf)(buf, count, fmt, va);
+ va_end(va);
- return result;
+ return result;
}
-STBSP__PUBLICDEF int STB_SPRINTF_DECORATE( vsprintf )( char * buf, char const * fmt, va_list va )
+STBSP__PUBLICDEF int STB_SPRINTF_DECORATE(vsprintf)(char *buf, char const *fmt, va_list va)
{
- return STB_SPRINTF_DECORATE( vsprintfcb )( 0, 0, buf, fmt, va );
+ return STB_SPRINTF_DECORATE(vsprintfcb)(0, 0, buf, fmt, va);
}
// =======================================================================
@@ 947,220 1480,368 @@ STBSP__PUBLICDEF int STB_SPRINTF_DECORAT
#ifndef STB_SPRINTF_NOFLOAT
// copies d to bits w/ strict aliasing (this compiles to nothing on /Ox)
-#define STBSP__COPYFP(dest,src) { int cn; for(cn=0;cn<8;cn++) ((char*)&dest)[cn]=((char*)&src)[cn]; }
+#define STBSP__COPYFP(dest, src) \
+ { \
+ int cn; \
+ for (cn = 0; cn < 8; cn++) \
+ ((char *)&dest)[cn] = ((char *)&src)[cn]; \
+ }
// get float info
-static stbsp__int32 stbsp__real_to_parts( stbsp__int64 * bits, stbsp__int32 * expo, double value )
+static stbsp__int32 stbsp__real_to_parts(stbsp__int64 *bits, stbsp__int32 *expo, double value)
{
- double d;
- stbsp__int64 b = 0;
+ double d;
+ stbsp__int64 b = 0;
- // load value and round at the frac_digits
- d = value;
+ // load value and round at the frac_digits
+ d = value;
- STBSP__COPYFP( b, d );
+ STBSP__COPYFP(b, d);
- *bits = b & ((((stbsp__uint64)1)<<52)-1);
- *expo = (stbsp__int32) (((b >> 52) & 2047)-1023);
+ *bits = b & ((((stbsp__uint64)1) << 52) - 1);
+ *expo = (stbsp__int32)(((b >> 52) & 2047) - 1023);
- return (stbsp__int32)(b >> 63);
+ return (stbsp__int32)((stbsp__uint64) b >> 63);
}
-static double const stbsp__bot[23]={1e+000,1e+001,1e+002,1e+003,1e+004,1e+005,1e+006,1e+007,1e+008,1e+009,1e+010,1e+011,1e+012,1e+013,1e+014,1e+015,1e+016,1e+017,1e+018,1e+019,1e+020,1e+021,1e+022};
-static double const stbsp__negbot[22]={1e-001,1e-002,1e-003,1e-004,1e-005,1e-006,1e-007,1e-008,1e-009,1e-010,1e-011,1e-012,1e-013,1e-014,1e-015,1e-016,1e-017,1e-018,1e-019,1e-020,1e-021,1e-022};
-static double const stbsp__negboterr[22]={-5.551115123125783e-018,-2.0816681711721684e-019,-2.0816681711721686e-020,-4.7921736023859299e-021,-8.1803053914031305e-022,4.5251888174113741e-023,4.5251888174113739e-024,-2.0922560830128471e-025,-6.2281591457779853e-026,-3.6432197315497743e-027,6.0503030718060191e-028,2.0113352370744385e-029,-3.0373745563400371e-030,1.1806906454401013e-032,-7.7705399876661076e-032,2.0902213275965398e-033,-7.1542424054621921e-034,-7.1542424054621926e-035,2.4754073164739869e-036,5.4846728545790429e-037,9.2462547772103625e-038,-4.8596774326570872e-039};
-static double const stbsp__top[13]={1e+023,1e+046,1e+069,1e+092,1e+115,1e+138,1e+161,1e+184,1e+207,1e+230,1e+253,1e+276,1e+299};
-static double const stbsp__negtop[13]={1e-023,1e-046,1e-069,1e-092,1e-115,1e-138,1e-161,1e-184,1e-207,1e-230,1e-253,1e-276,1e-299};
-static double const stbsp__toperr[13]={8388608,6.8601809640529717e+028,-7.253143638152921e+052,-4.3377296974619174e+075,-1.5559416129466825e+098,-3.2841562489204913e+121,-3.7745893248228135e+144,-1.7356668416969134e+167,-3.8893577551088374e+190,-9.9566444326005119e+213,6.3641293062232429e+236,-5.2069140800249813e+259,-5.2504760255204387e+282};
-static double const stbsp__negtoperr[13]={3.9565301985100693e-040,-2.299904345391321e-063,3.6506201437945798e-086,1.1875228833981544e-109,-5.0644902316928607e-132,-6.7156837247865426e-155,-2.812077463003139e-178,-5.7778912386589953e-201,7.4997100559334532e-224,-4.6439668915134491e-247,-6.3691100762962136e-270,-9.436808465446358e-293,8.0970921678014997e-317};
+static double const stbsp__bot[23] = {
+ 1e+000, 1e+001, 1e+002, 1e+003, 1e+004, 1e+005, 1e+006, 1e+007, 1e+008, 1e+009, 1e+010, 1e+011,
+ 1e+012, 1e+013, 1e+014, 1e+015, 1e+016, 1e+017, 1e+018, 1e+019, 1e+020, 1e+021, 1e+022
+};
+static double const stbsp__negbot[22] = {
+ 1e-001, 1e-002, 1e-003, 1e-004, 1e-005, 1e-006, 1e-007, 1e-008, 1e-009, 1e-010, 1e-011,
+ 1e-012, 1e-013, 1e-014, 1e-015, 1e-016, 1e-017, 1e-018, 1e-019, 1e-020, 1e-021, 1e-022
+};
+static double const stbsp__negboterr[22] = {
+ -5.551115123125783e-018, -2.0816681711721684e-019, -2.0816681711721686e-020, -4.7921736023859299e-021, -8.1803053914031305e-022, 4.5251888174113741e-023,
+ 4.5251888174113739e-024, -2.0922560830128471e-025, -6.2281591457779853e-026, -3.6432197315497743e-027, 6.0503030718060191e-028, 2.0113352370744385e-029,
+ -3.0373745563400371e-030, 1.1806906454401013e-032, -7.7705399876661076e-032, 2.0902213275965398e-033, -7.1542424054621921e-034, -7.1542424054621926e-035,
+ 2.4754073164739869e-036, 5.4846728545790429e-037, 9.2462547772103625e-038, -4.8596774326570872e-039
+};
+static double const stbsp__top[13] = {
+ 1e+023, 1e+046, 1e+069, 1e+092, 1e+115, 1e+138, 1e+161, 1e+184, 1e+207, 1e+230, 1e+253, 1e+276, 1e+299
+};
+static double const stbsp__negtop[13] = {
+ 1e-023, 1e-046, 1e-069, 1e-092, 1e-115, 1e-138, 1e-161, 1e-184, 1e-207, 1e-230, 1e-253, 1e-276, 1e-299
+};
+static double const stbsp__toperr[13] = {
+ 8388608,
+ 6.8601809640529717e+028,
+ -7.253143638152921e+052,
+ -4.3377296974619174e+075,
+ -1.5559416129466825e+098,
+ -3.2841562489204913e+121,
+ -3.7745893248228135e+144,
+ -1.7356668416969134e+167,
+ -3.8893577551088374e+190,
+ -9.9566444326005119e+213,
+ 6.3641293062232429e+236,
+ -5.2069140800249813e+259,
+ -5.2504760255204387e+282
+};
+static double const stbsp__negtoperr[13] = {
+ 3.9565301985100693e-040, -2.299904345391321e-063, 3.6506201437945798e-086, 1.1875228833981544e-109,
+ -5.0644902316928607e-132, -6.7156837247865426e-155, -2.812077463003139e-178, -5.7778912386589953e-201,
+ 7.4997100559334532e-224, -4.6439668915134491e-247, -6.3691100762962136e-270, -9.436808465446358e-293,
+ 8.0970921678014997e-317
+};
-#if defined(_MSC_VER) && (_MSC_VER<=1200)
-static stbsp__uint64 const stbsp__powten[20]={1,10,100,1000, 10000,100000,1000000,10000000, 100000000,1000000000,10000000000,100000000000, 1000000000000,10000000000000,100000000000000,1000000000000000, 10000000000000000,100000000000000000,1000000000000000000,10000000000000000000U };
+#if defined(_MSC_VER) && (_MSC_VER <= 1200)
+static stbsp__uint64 const stbsp__powten[20] = {
+ 1,
+ 10,
+ 100,
+ 1000,
+ 10000,
+ 100000,
+ 1000000,
+ 10000000,
+ 100000000,
+ 1000000000,
+ 10000000000,
+ 100000000000,
+ 1000000000000,
+ 10000000000000,
+ 100000000000000,
+ 1000000000000000,
+ 10000000000000000,
+ 100000000000000000,
+ 1000000000000000000,
+ 10000000000000000000U
+};
#define stbsp__tento19th ((stbsp__uint64)1000000000000000000)
#else
-static stbsp__uint64 const stbsp__powten[20]={1,10,100,1000, 10000,100000,1000000,10000000, 100000000,1000000000,10000000000ULL,100000000000ULL, 1000000000000ULL,10000000000000ULL,100000000000000ULL,1000000000000000ULL, 10000000000000000ULL,100000000000000000ULL,1000000000000000000ULL,10000000000000000000ULL };
+static stbsp__uint64 const stbsp__powten[20] = {
+ 1,
+ 10,
+ 100,
+ 1000,
+ 10000,
+ 100000,
+ 1000000,
+ 10000000,
+ 100000000,
+ 1000000000,
+ 10000000000ULL,
+ 100000000000ULL,
+ 1000000000000ULL,
+ 10000000000000ULL,
+ 100000000000000ULL,
+ 1000000000000000ULL,
+ 10000000000000000ULL,
+ 100000000000000000ULL,
+ 1000000000000000000ULL,
+ 10000000000000000000ULL
+};
#define stbsp__tento19th (1000000000000000000ULL)
#endif
-#define stbsp__ddmulthi(oh,ol,xh,yh) \
-{ \
- double ahi=0,alo,bhi=0,blo; \
- stbsp__int64 bt; \
- oh = xh * yh; \
- STBSP__COPYFP(bt,xh); bt&=((~(stbsp__uint64)0)<<27); STBSP__COPYFP(ahi,bt); alo = xh-ahi; \
- STBSP__COPYFP(bt,yh); bt&=((~(stbsp__uint64)0)<<27); STBSP__COPYFP(bhi,bt); blo = yh-bhi; \
- ol = ((ahi*bhi-oh)+ahi*blo+alo*bhi)+alo*blo; \
-}
+#define stbsp__ddmulthi(oh, ol, xh, yh) \
+ { \
+ double ahi = 0, alo, bhi = 0, blo; \
+ stbsp__int64 bt; \
+ oh = xh * yh; \
+ STBSP__COPYFP(bt, xh); \
+ bt &= ((~(stbsp__uint64)0) << 27); \
+ STBSP__COPYFP(ahi, bt); \
+ alo = xh - ahi; \
+ STBSP__COPYFP(bt, yh); \
+ bt &= ((~(stbsp__uint64)0) << 27); \
+ STBSP__COPYFP(bhi, bt); \
+ blo = yh - bhi; \
+ ol = ((ahi * bhi - oh) + ahi * blo + alo * bhi) + alo * blo; \
+ }
-#define stbsp__ddtoS64(ob,xh,xl) \
-{ \
- double ahi=0,alo,vh,t;\
- ob = (stbsp__int64)ph;\
- vh=(double)ob;\
- ahi = ( xh - vh );\
- t = ( ahi - xh );\
- alo = (xh-(ahi-t))-(vh+t);\
- ob += (stbsp__int64)(ahi+alo+xl);\
-}
+#define stbsp__ddtoS64(ob, xh, xl) \
+ { \
+ double ahi = 0, alo, vh, t; \
+ ob = (stbsp__int64)xh; \
+ vh = (double)ob; \
+ ahi = (xh - vh); \
+ t = (ahi - xh); \
+ alo = (xh - (ahi - t)) - (vh + t); \
+ ob += (stbsp__int64)(ahi + alo + xl); \
+ }
-
-#define stbsp__ddrenorm(oh,ol) { double s; s=oh+ol; ol=ol-(s-oh); oh=s; }
+#define stbsp__ddrenorm(oh, ol) \
+ { \
+ double s; \
+ s = oh + ol; \
+ ol = ol - (s - oh); \
+ oh = s; \
+ }
-#define stbsp__ddmultlo(oh,ol,xh,xl,yh,yl) \
- ol = ol + ( xh*yl + xl*yh ); \
+#define stbsp__ddmultlo(oh, ol, xh, xl, yh, yl) ol = ol + (xh * yl + xl * yh);
-#define stbsp__ddmultlos(oh,ol,xh,yl) \
- ol = ol + ( xh*yl ); \
+#define stbsp__ddmultlos(oh, ol, xh, yl) ol = ol + (xh * yl);
-static void stbsp__raise_to_power10( double *ohi, double *olo, double d, stbsp__int32 power ) // power can be -323 to +350
+static void stbsp__raise_to_power10(double *ohi, double *olo, double d, stbsp__int32 power) // power can be -323 to +350
{
- double ph, pl;
- if ((power>=0) && (power<=22))
- {
- stbsp__ddmulthi(ph,pl,d,stbsp__bot[power]);
- }
- else
- {
- stbsp__int32 e,et,eb;
- double p2h,p2l;
+ double ph, pl;
+ if ((power >= 0) && (power <= 22)) {
+ stbsp__ddmulthi(ph, pl, d, stbsp__bot[power]);
+ } else {
+ stbsp__int32 e, et, eb;
+ double p2h, p2l;
- e=power; if (power<0) e=-e;
- et = (e*0x2c9)>>14;/* %23 */ if (et>13) et=13; eb = e-(et*23);
+ e = power;
+ if (power < 0)
+ e = -e;
+ et = (e * 0x2c9) >> 14; /* %23 */
+ if (et > 13)
+ et = 13;
+ eb = e - (et * 23);
- ph = d; pl = 0.0;
- if (power<0)
- {
- if (eb) { --eb; stbsp__ddmulthi(ph,pl,d,stbsp__negbot[eb]); stbsp__ddmultlos(ph,pl,d,stbsp__negboterr[eb]); }
- if (et)
- {
- stbsp__ddrenorm(ph,pl);
- --et; stbsp__ddmulthi(p2h,p2l,ph,stbsp__negtop[et]); stbsp__ddmultlo(p2h,p2l,ph,pl,stbsp__negtop[et],stbsp__negtoperr[et]); ph=p2h;pl=p2l;
+ ph = d;
+ pl = 0.0;
+ if (power < 0) {
+ if (eb) {
+ --eb;
+ stbsp__ddmulthi(ph, pl, d, stbsp__negbot[eb]);
+ stbsp__ddmultlos(ph, pl, d, stbsp__negboterr[eb]);
+ }
+ if (et) {
+ stbsp__ddrenorm(ph, pl);
+ --et;
+ stbsp__ddmulthi(p2h, p2l, ph, stbsp__negtop[et]);
+ stbsp__ddmultlo(p2h, p2l, ph, pl, stbsp__negtop[et], stbsp__negtoperr[et]);
+ ph = p2h;
+ pl = p2l;
+ }
+ } else {
+ if (eb) {
+ e = eb;
+ if (eb > 22)
+ eb = 22;
+ e -= eb;
+ stbsp__ddmulthi(ph, pl, d, stbsp__bot[eb]);
+ if (e) {
+ stbsp__ddrenorm(ph, pl);
+ stbsp__ddmulthi(p2h, p2l, ph, stbsp__bot[e]);
+ stbsp__ddmultlos(p2h, p2l, stbsp__bot[e], pl);
+ ph = p2h;
+ pl = p2l;
+ }
+ }
+ if (et) {
+ stbsp__ddrenorm(ph, pl);
+ --et;
+ stbsp__ddmulthi(p2h, p2l, ph, stbsp__top[et]);
+ stbsp__ddmultlo(p2h, p2l, ph, pl, stbsp__top[et], stbsp__toperr[et]);
+ ph = p2h;
+ pl = p2l;
+ }
}
- }
- else
- {
- if (eb)
- {
- e = eb; if (eb>22) eb=22; e -= eb;
- stbsp__ddmulthi(ph,pl,d,stbsp__bot[eb]);
- if ( e ) { stbsp__ddrenorm(ph,pl); stbsp__ddmulthi(p2h,p2l,ph,stbsp__bot[e]); stbsp__ddmultlos(p2h,p2l,stbsp__bot[e],pl); ph=p2h;pl=p2l; }
- }
- if (et)
- {
- stbsp__ddrenorm(ph,pl);
- --et; stbsp__ddmulthi(p2h,p2l,ph,stbsp__top[et]); stbsp__ddmultlo(p2h,p2l,ph,pl,stbsp__top[et],stbsp__toperr[et]); ph=p2h;pl=p2l;
- }
- }
- }
- stbsp__ddrenorm(ph,pl);
- *ohi = ph; *olo = pl;
+ }
+ stbsp__ddrenorm(ph, pl);
+ *ohi = ph;
+ *olo = pl;
}
// given a float value, returns the significant bits in bits, and the position of the
// decimal point in decimal_pos. +/-INF and NAN are specified by special values
// returned in the decimal_pos parameter.
// frac_digits is absolute normally, but if you want from first significant digits (got %g and %e), or in 0x80000000
-static stbsp__int32 stbsp__real_to_str( char const * * start, stbsp__uint32 * len, char *out, stbsp__int32 * decimal_pos, double value, stbsp__uint32 frac_digits )
+static stbsp__int32 stbsp__real_to_str(char const **start, stbsp__uint32 *len, char *out, stbsp__int32 *decimal_pos, double value, stbsp__uint32 frac_digits)
{
- double d;
- stbsp__int64 bits = 0;
- stbsp__int32 expo, e, ng, tens;
+ double d;
+ stbsp__int64 bits = 0;
+ stbsp__int32 expo, e, ng, tens;
- d = value;
- STBSP__COPYFP(bits,d);
- expo = (stbsp__int32) ((bits >> 52) & 2047);
- ng = (stbsp__int32)(bits >> 63);
- if (ng) d=-d;
+ d = value;
+ STBSP__COPYFP(bits, d);
+ expo = (stbsp__int32)((bits >> 52) & 2047);
+ ng = (stbsp__int32)((stbsp__uint64) bits >> 63);
+ if (ng)
+ d = -d;
- if ( expo == 2047 ) // is nan or inf?
- {
- *start = (bits&((((stbsp__uint64)1)<<52)-1)) ? "NaN" : "Inf";
- *decimal_pos = STBSP__SPECIAL;
- *len = 3;
- return ng;
- }
+ if (expo == 2047) // is nan or inf?
+ {
+ *start = (bits & ((((stbsp__uint64)1) << 52) - 1)) ? "NaN" : "Inf";
+ *decimal_pos = STBSP__SPECIAL;
+ *len = 3;
+ return ng;
+ }
- if ( expo == 0 ) // is zero or denormal
- {
- if ((bits<<1)==0) // do zero
- {
- *decimal_pos = 1;
- *start = out;
- out[0] = '0'; *len = 1;
- return ng;
- }
- // find the right expo for denormals
- {
- stbsp__int64 v = ((stbsp__uint64)1)<<51;
- while ((bits&v)==0) { --expo; v >>= 1; }
- }
- }
+ if (expo == 0) // is zero or denormal
+ {
+ if (((stbsp__uint64) bits << 1) == 0) // do zero
+ {
+ *decimal_pos = 1;
+ *start = out;
+ out[0] = '0';
+ *len = 1;
+ return ng;
+ }
+ // find the right expo for denormals
+ {
+ stbsp__int64 v = ((stbsp__uint64)1) << 51;
+ while ((bits & v) == 0) {
+ --expo;
+ v >>= 1;
+ }
+ }
+ }
- // find the decimal exponent as well as the decimal bits of the value
- {
- double ph,pl;
+ // find the decimal exponent as well as the decimal bits of the value
+ {
+ double ph, pl;
+
+ // log10 estimate - very specifically tweaked to hit or undershoot by no more than 1 of log10 of all expos 1..2046
+ tens = expo - 1023;
+ tens = (tens < 0) ? ((tens * 617) / 2048) : (((tens * 1233) / 4096) + 1);
- // log10 estimate - very specifically tweaked to hit or undershoot by no more than 1 of log10 of all expos 1..2046
- tens=expo-1023; tens = (tens<0)?((tens*617)/2048):(((tens*1233)/4096)+1);
+ // move the significant bits into position and stick them into an int
+ stbsp__raise_to_power10(&ph, &pl, d, 18 - tens);
- // move the significant bits into position and stick them into an int
- stbsp__raise_to_power10( &ph, &pl, d, 18-tens );
+ // get full as much precision from double-double as possible
+ stbsp__ddtoS64(bits, ph, pl);
- // get full as much precision from double-double as possible
- stbsp__ddtoS64( bits, ph,pl );
+ // check if we undershot
+ if (((stbsp__uint64)bits) >= stbsp__tento19th)
+ ++tens;
+ }
- // check if we undershot
- if ( ((stbsp__uint64)bits) >= stbsp__tento19th ) ++tens;
- }
-
- // now do the rounding in integer land
- frac_digits = ( frac_digits & 0x80000000 ) ? ( (frac_digits&0x7ffffff) + 1 ) : ( tens + frac_digits );
- if ( ( frac_digits < 24 ) )
- {
- stbsp__uint32 dg = 1; if ((stbsp__uint64)bits >= stbsp__powten[9] ) dg=10; while( (stbsp__uint64)bits >= stbsp__powten[dg] ) { ++dg; if (dg==20) goto noround; }
- if ( frac_digits < dg )
- {
- stbsp__uint64 r;
- // add 0.5 at the right position and round
- e = dg - frac_digits;
- if ( (stbsp__uint32)e >= 24 ) goto noround;
- r = stbsp__powten[e];
- bits = bits + (r/2);
- if ( (stbsp__uint64)bits >= stbsp__powten[dg] ) ++tens;
- bits /= r;
- }
- noround:;
- }
+ // now do the rounding in integer land
+ frac_digits = (frac_digits & 0x80000000) ? ((frac_digits & 0x7ffffff) + 1) : (tens + frac_digits);
+ if ((frac_digits < 24)) {
+ stbsp__uint32 dg = 1;
+ if ((stbsp__uint64)bits >= stbsp__powten[9])
+ dg = 10;
+ while ((stbsp__uint64)bits >= stbsp__powten[dg]) {
+ ++dg;
+ if (dg == 20)
+ goto noround;
+ }
+ if (frac_digits < dg) {
+ stbsp__uint64 r;
+ // add 0.5 at the right position and round
+ e = dg - frac_digits;
+ if ((stbsp__uint32)e >= 24)
+ goto noround;
+ r = stbsp__powten[e];
+ bits = bits + (r / 2);
+ if ((stbsp__uint64)bits >= stbsp__powten[dg])
+ ++tens;
+ bits /= r;
+ }
+ noround:;
+ }
- // kill long trailing runs of zeros
- if ( bits )
- {
- stbsp__uint32 n;
- for(;;) { if ( bits<=0xffffffff ) break; if (bits%1000) goto donez; bits/=1000; }
- n = (stbsp__uint32)bits;
- while ((n%1000)==0) n/=1000;
- bits=n;
- donez:;
- }
+ // kill long trailing runs of zeros
+ if (bits) {
+ stbsp__uint32 n;
+ for (;;) {
+ if (bits <= 0xffffffff)
+ break;
+ if (bits % 1000)
+ goto donez;
+ bits /= 1000;
+ }
+ n = (stbsp__uint32)bits;
+ while ((n % 1000) == 0)
+ n /= 1000;
+ bits = n;
+ donez:;
+ }
- // convert to string
- out += 64;
- e = 0;
- for(;;)
- {
- stbsp__uint32 n;
- char * o = out-8;
- // do the conversion in chunks of U32s (avoid most 64-bit divides, worth it, constant denomiators be damned)
- if (bits>=100000000) { n = (stbsp__uint32)( bits % 100000000); bits /= 100000000; } else {n = (stbsp__uint32)bits; bits = 0; }
- while(n) { out-=2; *(stbsp__uint16*)out=*(stbsp__uint16*)&stbsp__digitpair[(n%100)*2]; n/=100; e+=2; }
- if (bits==0) { if ((e) && (out[0]=='0')) { ++out; --e; } break; }
- while( out!=o ) { *--out ='0'; ++e; }
- }
+ // convert to string
+ out += 64;
+ e = 0;
+ for (;;) {
+ stbsp__uint32 n;
+ char *o = out - 8;
+ // do the conversion in chunks of U32s (avoid most 64-bit divides, worth it, constant denomiators be damned)
+ if (bits >= 100000000) {
+ n = (stbsp__uint32)(bits % 100000000);
+ bits /= 100000000;
+ } else {
+ n = (stbsp__uint32)bits;
+ bits = 0;
+ }
+ while (n) {
+ out -= 2;
+ *(stbsp__uint16 *)out = *(stbsp__uint16 *)&stbsp__digitpair.pair[(n % 100) * 2];
+ n /= 100;
+ e += 2;
+ }
+ if (bits == 0) {
+ if ((e) && (out[0] == '0')) {
+ ++out;
+ --e;
+ }
+ break;
+ }
+ while (out != o) {
+ *--out = '0';
+ ++e;
+ }
+ }
- *decimal_pos = tens;
- *start = out;
- *len = e;
- return ng;
+ *decimal_pos = tens;
+ *start = out;
+ *len = e;
+ return ng;
}
#undef stbsp__ddmulthi
@@ 1182,7 1863,6 @@ static stbsp__int32 stbsp__real_to_str(
#endif // STB_SPRINTF_IMPLEMENTATION
-
/*
------------------------------------------------------------------------------
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