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| author | Joseph Myers <joseph@codesourcery.com> | 2017-08-31 16:12:46 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2017-08-31 16:12:46 +0000 |
| commit | 5ef1b2138d4236bb3616e612c5bc4dc328a9ffb2 (patch) | |
| tree | 61aafc452df09633ca89bf87e3757507d4fc99a3 /math/math.h | |
| parent | a60eca2e55e2372e21f0d19b1dc5cac61a48ee50 (diff) | |
| download | glibc-5ef1b2138d4236bb3616e612c5bc4dc328a9ffb2.zip glibc-5ef1b2138d4236bb3616e612c5bc4dc328a9ffb2.tar.gz glibc-5ef1b2138d4236bb3616e612c5bc4dc328a9ffb2.tar.bz2 | |
Simplify INFINITY definitions.
Similar to my patch for HUGE_VAL, this patch eliminates the bits/inf.h
headers and just unconditionally uses the same definitions as the
sysdeps/ieee754 version did (__builtin_inff () for GCC >= 3.3,
otherwise HUGE_VALF), directly in math.h, so removing an unnecessary
level of indirection.
Tested for x86_64.
* math/math.h [__USE_ISOC99] (INFINITY): Define directly here. Do
not include <bits/inf.h>.
* math/Makefile (headers): Remove bits/inf.h.
* bits/inf.h: Remove.
* sysdeps/ieee754/bits/inf.h: Likewise.
Diffstat (limited to 'math/math.h')
| -rw-r--r-- | math/math.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/math/math.h b/math/math.h index dcccf8e..5f5a498 100644 --- a/math/math.h +++ b/math/math.h @@ -58,8 +58,12 @@ __BEGIN_DECLS #endif #ifdef __USE_ISOC99 -/* Get machine-dependent INFINITY value. */ -# include <bits/inf.h> +/* IEEE positive infinity. */ +# if __GNUC_PREREQ (3, 3) +# define INFINITY (__builtin_inff ()) +# else +# define INFINITY HUGE_VALF +# endif /* Get machine-dependent NAN value (returned for some domain errors). */ # include <bits/nan.h> |