diff options
Diffstat (limited to 'libc/stdio/old_vfprintf.c')
| -rw-r--r-- | libc/stdio/old_vfprintf.c | 54 |
1 files changed, 48 insertions, 6 deletions
diff --git a/libc/stdio/old_vfprintf.c b/libc/stdio/old_vfprintf.c index 77e593490..ecec63c9f 100644 --- a/libc/stdio/old_vfprintf.c +++ b/libc/stdio/old_vfprintf.c @@ -83,6 +83,9 @@ * 1) fix %p so that "0x" is prepended to outputed hex val * 2) fix %p so that "(nil)" is output for (void *)0 to match glibc * + * Sep 5, 2003 + * Convert to new floating point conversion routine. + * */ /*****************************************************************************/ @@ -151,7 +154,45 @@ #endif #if defined(__UCLIBC_HAS_FLOATS__) -extern size_t _dtostr(FILE * fp, long double x, struct printf_info *info); +#include <float.h> +#include <bits/uClibc_fpmax.h> + +typedef void (__fp_outfunc_t)(FILE *fp, intptr_t type, intptr_t len, + intptr_t buf); + +extern size_t _fpmaxtostr(FILE * fp, __fpmax_t x, struct printf_info *info, + __fp_outfunc_t fp_outfunc); + +#define FMT_TYPE char +#define OUTNSTR _outnstr +#define _outnstr(stream, string, len) _stdio_fwrite(string, len, stream) + +static void _charpad(FILE * __restrict stream, int padchar, size_t numpad) +{ + /* TODO -- Use a buffer to cut down on function calls... */ + FMT_TYPE pad[1]; + + *pad = padchar; + while (numpad) { + OUTNSTR(stream, pad, 1); + --numpad; + } +} + +static void _fp_out_narrow(FILE *fp, intptr_t type, intptr_t len, intptr_t buf) +{ + if (type & 0x80) { /* Some type of padding needed. */ + int buflen = strlen((const char *) buf); + if ((len -= buflen) > 0) { + _charpad(fp, (type & 0x7f), len); + } + len = buflen; + } + OUTNSTR(fp, (const char *) buf, len); +} + + + #endif @@ -384,11 +425,12 @@ int vfprintf(FILE * __restrict op, register const char * __restrict fmt, if (flag[FLAG_MINUS_LJUSTIFY]) { PRINT_INFO_SET_FLAG(&info,left); } - cnt += _dtostr(op, - ((lval > 1) - ? va_arg(ap, long double) - : (long double) va_arg(ap, double)), - &info); + cnt += _fpmaxtostr(op, + (__fpmax_t) + ((lval > 1) + ? va_arg(ap, long double) + : (long double) va_arg(ap, double)), + &info, _fp_out_narrow); goto nextfmt; #elif WANT_FLOAT_ERROR (void) ((lval > 1) ? va_arg(ap, long double) |