41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
#include <math.h>
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#ifndef __NO_LONG_DOUBLE_MATH
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/* The actual implementation for all floating point sizes is in strtod.c.
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These macros tell it to produce the `long double' version, `strtold'. */
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# define FLOAT long double
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# define FLT LDBL
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# ifdef USE_IN_EXTENDED_LOCALE_MODEL
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# define STRTOF __strtold_l
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# else
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# define STRTOF strtold
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# endif
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# define MPN2FLOAT __mpn_construct_long_double
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# define FLOAT_HUGE_VAL HUGE_VALL
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# define SET_MANTISSA(flt, mant) \
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do { union ieee854_long_double u; \
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u.d = (flt); \
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if ((mant & 0x7fffffffffffffffULL) == 0) \
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mant = 0x4000000000000000ULL; \
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u.ieee.mantissa0 = (((mant) >> 32) & 0x7fffffff) | 0x80000000; \
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u.ieee.mantissa1 = (mant) & 0xffffffff; \
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(flt) = u.d; \
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} while (0)
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# include "strtod.c"
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#else
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/* There is no `long double' type, use the `double' implementations. */
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long double
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__strtold_internal (const char *nptr, char **endptr, int group)
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{
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return __strtod_internal (nptr, endptr, group);
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}
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long double
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strtold (const char *nptr, char **endptr)
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{
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return __strtod_internal (nptr, endptr, 0);
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}
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#endif
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