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math: add __math_invalidl

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for targets where long double is different from double.
This commit is contained in:
Szabolcs Nagy 2020-06-29 17:14:42 +00:00 • committed by Rich Felker
parent b1756ec884
commit 4f893997e4
2 changed files with 12 additions and 0 deletions
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3
src/internal/libm.h
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@ -267,5 +267,8 @@ hidden double __math_uflow(uint32_t);
hidden double __math_oflow(uint32_t);
hidden double __math_divzero(uint32_t);
hidden double __math_invalid(double);
#if LDBL_MANT_DIG != DBL_MANT_DIG
hidden long double __math_invalidl(long double);
#endif
#endif

9
src/math/__math_invalidl.c Normal file
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@ -0,0 +1,9 @@
#include <float.h>
#include "libm.h"
#if LDBL_MANT_DIG != DBL_MANT_DIG
long double __math_invalidl(long double x)
{
return (x - x) / (x - x);
}
#endif