76235ed48f
1998-12-28 Ulrich Drepper <drepper@cygnus.com> * stdlib/fpioconst.c: If __NO_LONG_DOUBLE_MATH don't define constants beyond range of double. * stdlib/fpioconst.h (_fpioconst_pow10): Reduce size according to fpioconst.c change. * stdlib/strtold.c: Fall back on double functions if __NO_LONG_DOUBLE_MATH. * stdlib/strtold_l.c: Likewise. * wcsmbs/wcstold.c: Likewise. * wcsmbs/wcstold_l.c: Likewise. * sysdeps/ieee754/ldbl2mpn.c: Don't generate code if __NO_LONG_DOUBLE_MATH. * sysdeps/ieee754/mpn2ldbl.c: Likewise. 1998-12-28 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/powerpc/bits/endian.h: Use #warning, not #error, if the endianness can't be determined, for makedepend.
41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
#include <math.h>
|
|
|
|
#ifndef __NO_LONG_DOUBLE_MATH
|
|
/* The actual implementation for all floating point sizes is in strtod.c.
|
|
These macros tell it to produce the `long double' version, `strtold'. */
|
|
|
|
# define FLOAT long double
|
|
# define FLT LDBL
|
|
# ifdef USE_IN_EXTENDED_LOCALE_MODEL
|
|
# define STRTOF __strtold_l
|
|
# else
|
|
# define STRTOF strtold
|
|
# endif
|
|
# define MPN2FLOAT __mpn_construct_long_double
|
|
# define FLOAT_HUGE_VAL HUGE_VALL
|
|
# define SET_MANTISSA(flt, mant) \
|
|
do { union ieee854_long_double u; \
|
|
u.d = (flt); \
|
|
if ((mant & 0x7fffffffffffffffULL) == 0) \
|
|
mant = 0x4000000000000000ULL; \
|
|
u.ieee.mantissa0 = (((mant) >> 32) & 0x7fffffff) | 0x80000000; \
|
|
u.ieee.mantissa1 = (mant) & 0xffffffff; \
|
|
(flt) = u.d; \
|
|
} while (0)
|
|
|
|
# include "strtod.c"
|
|
#else
|
|
/* There is no `long double' type, use the `double' implementations. */
|
|
long double
|
|
__strtold_internal (const char *nptr, char **endptr, int group)
|
|
{
|
|
return __strtod_internal (nptr, endptr, group);
|
|
}
|
|
|
|
long double
|
|
strtold (const char *nptr, char **endptr)
|
|
{
|
|
return __strtod_internal (nptr, endptr, 0);
|
|
}
|
|
#endif
|