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2005-01-06 Jeff Johnston <jjohnstn@redhat.com>

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* libc/stdlib/strtod.c (_strtod_r): Add NaN support.
        * (strtof): Ditto.
        * libc/stdio/vfscanf.c (__svfscanf_r): Ditto.
        * Makefile.am (MATHOBJS_IN_LIBC): Add s_nan and sf_nan
        functions for use by strtod and strtof.
        * Makefile.in: Regenerated.
This commit is contained in:
Jeff Johnston 2005-01-06 23:31:56 +00:00
parent 69008322ef
commit 8fa6cb9a5d
5 changed files with 73 additions and 9 deletions
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9
newlib/ChangeLog
View File

@ -1,3 +1,12 @@
2005-01-06 Jeff Johnston <jjohnstn@redhat.com>
* libc/stdlib/strtod.c (_strtod_r): Add NaN support.
* (strtof): Ditto.
* libc/stdio/vfscanf.c (__svfscanf_r): Ditto.
* Makefile.am (MATHOBJS_IN_LIBC): Add s_nan and sf_nan
functions for use by strtod and strtof.
* Makefile.in: Regenerated.
2005-01-06 Hans-Peter Nilsson <hp@axis.com>
* libc/stdio/ftell.c (ftell_r): Add parenthesis for __SWR

1
newlib/Makefile.am
View File

@ -89,6 +89,7 @@ toollib_DATA = $(CRT0) $(CRT1)
MATHOBJS_IN_LIBC = \
s_isinf.$(oext) sf_isinf.$(oext) \
s_isnan.$(oext) sf_isnan.$(oext) \
s_nan.$(oext) sf_nan.$(oext) \
s_ldexp.$(oext) sf_ldexp.$(oext) \
s_frexp.$(oext) sf_frexp.$(oext) \
s_modf.$(oext) \

2
newlib/Makefile.in
View File

@ -151,7 +151,7 @@ toollib_DATA = $(CRT0) $(CRT1)
# The functions ldexp, frexp and modf are traditionally supplied in
# both libc.a and libm.a. We build them in libm.a and copy them over,
# along with some required supporting routines.
MATHOBJS_IN_LIBC = s_isinf.$(oext) sf_isinf.$(oext) s_isnan.$(oext) sf_isnan.$(oext) s_ldexp.$(oext) sf_ldexp.$(oext) s_frexp.$(oext) sf_frexp.$(oext) s_modf.$(oext) sf_modf.$(oext) s_scalbn.$(oext) sf_scalbn.$(oext) s_finite.$(oext) sf_finite.$(oext) s_copysign.$(oext) sf_copysign.$(oext) s_infconst.$(oext)
MATHOBJS_IN_LIBC = s_isinf.$(oext) sf_isinf.$(oext) s_isnan.$(oext) sf_isnan.$(oext) s_nan.$(oext) sf_nan.$(oext) s_ldexp.$(oext) sf_ldexp.$(oext) s_frexp.$(oext) sf_frexp.$(oext) s_modf.$(oext) sf_modf.$(oext) s_scalbn.$(oext) sf_scalbn.$(oext) s_finite.$(oext) sf_finite.$(oext) s_copysign.$(oext) sf_copysign.$(oext) s_infconst.$(oext)
LIBC_OBJECTLISTS = $(POSIX_OBJECTLIST) $(SIGNAL_OBJECTLIST) $(SYSCALL_OBJECTLIST) $(UNIX_OBJECTLIST) $(STDIO64_OBJECTLIST) libc/argz/objectlist.awk.in libc/stdlib/objectlist.awk.in libc/time/objectlist.awk.in libc/ctype/objectlist.awk.in libc/search/objectlist.awk.in libc/string/objectlist.awk.in libc/locale/objectlist.awk.in libc/misc/objectlist.awk.in libc/reent/objectlist.awk.in libc/errno/objectlist.awk.in libc/stdio/objectlist.awk.in $(MACHINE_OBJECTLIST) $(SYS_OBJECTLIST) $(SYS_MACH_OBJECTLIST)

39
newlib/libc/stdio/vfscanf.c
View File

@ -135,6 +135,7 @@ 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.
@ -985,6 +986,7 @@ _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
@ -1007,7 +1009,6 @@ _DEFUN(__SVFSCANF_R, (rptr, fp, fmt0, ap),
*/
switch (c)
{
case '0':
if (flags & NDIGITS)
{
@ -1030,8 +1031,12 @@ _DEFUN(__SVFSCANF_R, (rptr, fp, fmt0, ap),
case '7':
case '8':
case '9':
flags &= ~(SIGNOK | NDIGITS);
goto fok;
if (nancount == 0)
{
flags &= ~(SIGNOK | NDIGITS);
goto fok;
}
break;
case '+':
case '-':
@ -1041,6 +1046,29 @@ _DEFUN(__SVFSCANF_R, (rptr, fp, fmt0, ap),
goto fok;
}
break;
case 'n':
case 'N':
if (nancount == 0
&& (flags & (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)
{
@ -1163,7 +1191,10 @@ _DEFUN(__SVFSCANF_R, (rptr, fp, fmt0, ap),
else
{
flp = va_arg (ap, float *);
*flp = res;
if (isnan (res))
*flp = nanf (NULL);
else
*flp = res;
}
nassigned++;
}

31
newlib/libc/stdlib/strtod.c
View File

@ -117,9 +117,10 @@ _DEFUN (_strtod_r, (ptr, s00, se),
unsigned long z;
__ULong y;
union double_union rv, rv0;
int nanflag;
_Bigint *bb, *bb1, *bd, *bd0, *bs, *delta;
sign = nz0 = nz = 0;
sign = nz0 = nz = nanflag = 0;
rv.d = 0.;
for (s = s00;; s++)
switch (*s)
@ -145,7 +146,23 @@ _DEFUN (_strtod_r, (ptr, s00, se),
goto break2;
}
break2:
if (*s == '0')
if (*s == 'n' || *s == 'N')
{
++s;
if (*s == 'a' || *s == 'A')
{
++s;
if (*s == 'n' || *s == 'N')
{
nanflag = 1;
++s;
goto ret;
}
}
s = s00;
goto ret;
}
else if (*s == '0')
{
nz0 = 1;
while (*++s == '0');
@ -708,7 +725,10 @@ retfree:
ret:
if (se)
*se = (char *) s;
return sign ? -rv.d : rv.d;
if (nanflag)
return nan (NULL);
return (sign && (s != s00)) ? -rv.d : rv.d;
}
#ifndef NO_REENT
@ -725,7 +745,10 @@ _DEFUN (strtof, (s00, se),
_CONST char *s00 _AND
char **se)
{
return (float)_strtod_r (_REENT, s00, se);
double retval = _strtod_r (_REENT, s00, se);
if (isnan (retval))
return nanf (NULL);
return (float)retval;
}
#endif