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authorJoseph Myers <joseph@codesourcery.com>2017-08-31 16:12:46 +0000
committerJoseph Myers <joseph@codesourcery.com>2017-08-31 16:12:46 +0000
commit5ef1b2138d4236bb3616e612c5bc4dc328a9ffb2 (patch)
tree61aafc452df09633ca89bf87e3757507d4fc99a3 /math/math.h
parenta60eca2e55e2372e21f0d19b1dc5cac61a48ee50 (diff)
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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.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/math/math.h b/math/math.h
index dcccf8ea8c..5f5a498b11 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>