diff options
Diffstat (limited to 'newlib/libc/stdio/vfscanf.c')
| -rw-r--r-- | newlib/libc/stdio/vfscanf.c | 68 |
1 files changed, 9 insertions, 59 deletions
diff --git a/newlib/libc/stdio/vfscanf.c b/newlib/libc/stdio/vfscanf.c index 4788938c9..9e04e2b71 100644 --- a/newlib/libc/stdio/vfscanf.c +++ b/newlib/libc/stdio/vfscanf.c @@ -37,8 +37,8 @@ ANSI_SYNOPSIS va_list <[list]>); int _vfscanf_r(struct _reent *<[reent]>, FILE *<[fp]>, const char *<[fmt]>, va_list <[list]>); - int _vsscanf_r(struct _reent *<[reent]>, const char *<[str]>, - const char *<[fmt]>, va_list <[list]>); + int _vsscanf_r(struct _reent *<[reent]>, const char *<[str]>, const char *<[fmt]>, + va_list <[list]>); TRAD_SYNOPSIS #include <stdio.h> @@ -135,7 +135,6 @@ Supporting OS subroutines required: #endif #ifdef FLOATING_POINT -#include <math.h> #include <float.h> /* Currently a test is made to see if long double processing is warranted. @@ -231,7 +230,7 @@ _DEFUN(VFSCANF, (fp, fmt, ap), _CONST char *fmt _AND va_list ap) { - CHECK_INIT(_REENT); + CHECK_INIT(fp); return __SVFSCANF_R (_REENT, fp, fmt, ap); } @@ -253,7 +252,6 @@ _DEFUN(_VFSCANF_R, (data, fp, fmt, ap), _CONST char *fmt _AND va_list ap) { - CHECK_INIT(data); return __SVFSCANF_R (data, fp, fmt, ap); } @@ -987,7 +985,6 @@ _DEFUN(__SVFSCANF_R, (rptr, fp, fmt0, ap), long zeroes, exp_adjust; char *exp_start = NULL; unsigned width_left = 0; - int nancount = 0; #ifdef hardway if (width == 0 || width > sizeof (buf) - 1) #else @@ -1010,6 +1007,7 @@ _DEFUN(__SVFSCANF_R, (rptr, fp, fmt0, ap), */ switch (c) { + case '0': if (flags & NDIGITS) { @@ -1032,12 +1030,8 @@ _DEFUN(__SVFSCANF_R, (rptr, fp, fmt0, ap), case '7': case '8': case '9': - if (nancount == 0) - { - flags &= ~(SIGNOK | NDIGITS); - goto fok; - } - break; + flags &= ~(SIGNOK | NDIGITS); + goto fok; case '+': case '-': @@ -1047,30 +1041,6 @@ _DEFUN(__SVFSCANF_R, (rptr, fp, fmt0, ap), goto fok; } break; - case 'n': - case 'N': - if (nancount == 0 - && (flags & (SIGNOK | NDIGITS | DPTOK | EXPOK)) == - (SIGNOK | NDIGITS | DPTOK | EXPOK)) - { - flags &= ~(SIGNOK | DPTOK | EXPOK | NDIGITS); - nancount = 1; - goto fok; - } - else if (nancount == 2) - { - nancount = 3; - goto fok; - } - break; - case 'a': - case 'A': - if (nancount == 1) - { - nancount = 2; - goto fok; - } - break; case '.': if (flags & DPTOK) { @@ -1112,24 +1082,7 @@ _DEFUN(__SVFSCANF_R, (rptr, fp, fmt0, ap), } if (zeroes) flags &= ~NDIGITS; - /* We may have a 'N' or possibly even a 'Na' as the start of 'NaN', - only to run out of chars before it was complete (or having - encountered a non- matching char). So check here if we have an - outstanding nancount, and if so put back the chars we did - swallow and treat as a failed match. */ - if (nancount && nancount != 3) - { - /* Ok... what are we supposed to do in the event that the - __srefill call above was triggered in the middle of the partial - 'NaN' and so we can't put it all back? */ - while (nancount-- && (p > buf)) - { - ungetc (*(u_char *)--p, fp); - --nread; - } - goto match_failure; - } - /* + /* * If no digits, might be missing exponent digits * (just give back the exponent) or might be missing * regular digits, but had sign and/or decimal point. @@ -1141,7 +1094,7 @@ _DEFUN(__SVFSCANF_R, (rptr, fp, fmt0, ap), /* no digits at all */ while (p > buf) { - ungetc (*(u_char *)--p, fp); + ungetc (*(u_char *)-- p, fp); --nread; } goto match_failure; @@ -1210,10 +1163,7 @@ _DEFUN(__SVFSCANF_R, (rptr, fp, fmt0, ap), else { flp = va_arg (ap, float *); - if (isnan (res)) - *flp = nanf (NULL); - else - *flp = res; + *flp = res; } nassigned++; } |