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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2016-10-09 19:21:56 +0200 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2016-10-09 19:21:56 +0200 |
| commit | 525c181a5a9a95e24d2111b7792608151a40eb84 (patch) | |
| tree | 8ba16eeb3fb7327e5c3c5bba9c5786d4bb6ccec1 /sysdeps/ieee754/dbl-64/s_logb.c | |
| parent | 4dd9e35bfd35d3138bc44169baba098005bad51e (diff) | |
| parent | 7bb5f8a836b916d6ebf7b6921b136e99cea2442d (diff) | |
Merge commit 'refs/top-bases/t/bigmem' into t/bigmem
Diffstat (limited to 'sysdeps/ieee754/dbl-64/s_logb.c')
| -rw-r--r-- | sysdeps/ieee754/dbl-64/s_logb.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/ieee754/dbl-64/s_logb.c b/sysdeps/ieee754/dbl-64/s_logb.c index 7a6c49abf5..3a26b18f78 100644 --- a/sysdeps/ieee754/dbl-64/s_logb.c +++ b/sysdeps/ieee754/dbl-64/s_logb.c @@ -18,6 +18,7 @@ #include <math.h> #include <math_private.h> +#include <fix-int-fp-convert-zero.h> double __logb (double x) @@ -41,6 +42,8 @@ __logb (double x) ma = __builtin_clz (ix); rix -= ma - 12; } + if (FIX_INT_FP_CONVERT_ZERO && rix == 1023) + return 0.0; return (double) (rix - 1023); } weak_alias (__logb, logb) |