diff options
Diffstat (limited to 'lib/libc/stdio/vfprintf.c')
| -rw-r--r-- | lib/libc/stdio/vfprintf.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/lib/libc/stdio/vfprintf.c b/lib/libc/stdio/vfprintf.c index d312e7b..19076ab 100644 --- a/lib/libc/stdio/vfprintf.c +++ b/lib/libc/stdio/vfprintf.c @@ -251,6 +251,7 @@ __vfprintf(FILE *fp, const char *fmt0, va_list ap) * F: at least two digits for decimal, at least one digit for hex */ char *decimal_point; /* locale specific decimal point */ + int decpt_len; /* length of decimal_point */ int signflag; /* true if float is negative */ union { /* floating point arguments %[aAeEfFgG] */ double dbl; @@ -389,6 +390,8 @@ __vfprintf(FILE *fp, const char *fmt0, va_list ap) #ifndef NO_FLOATING_POINT dtoaresult = NULL; decimal_point = localeconv()->decimal_point; + /* The overwhelmingly common case is decpt_len == 1. */ + decpt_len = (decimal_point[1] == '\0' ? 1 : strlen(decimal_point)); #endif /* @@ -672,7 +675,7 @@ fp_common: expsize = exponent(expstr, expt - 1, expchar); size = expsize + prec; if (prec > 1 || flags & ALT) - ++size; + size += decpt_len; } else { /* space for digits before decimal point */ if (expt > 0) @@ -681,7 +684,7 @@ fp_common: size = 1; /* space for decimal pt and following digits */ if (prec || flags & ALT) - size += prec + 1; + size += prec + decpt_len; if (grouping && expt > 0) { /* space for thousands' grouping */ nseps = nrepeats = 0; @@ -920,7 +923,7 @@ number: if ((dprec = prec) >= 0) if (expt <= 0) { PRINT(zeroes, 1); if (prec || flags & ALT) - PRINT(decimal_point, 1); + PRINT(decimal_point,decpt_len); PAD(-expt, zeroes); /* already handled initial 0's */ prec += expt; @@ -945,14 +948,13 @@ number: if ((dprec = prec) >= 0) cp = dtoaend; } if (prec || flags & ALT) - PRINT(decimal_point,1); + PRINT(decimal_point,decpt_len); } PRINTANDPAD(cp, dtoaend, prec, zeroes); } else { /* %[eE] or sufficiently long %[gG] */ if (prec > 1 || flags & ALT) { - buf[0] = *cp++; - buf[1] = *decimal_point; - PRINT(buf, 2); + PRINT(cp++, 1); + PRINT(decimal_point, decpt_len); PRINT(cp, ndig-1); PAD(prec - ndig, zeroes); } else /* XeYYY */ |
