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| author | Ulrich Drepper <drepper@redhat.com> | 2009-08-23 11:57:52 -0700 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2009-08-23 11:57:52 -0700 |
| commit | 003c9895a89e71767ad64bafac1ca99622be2eb7 (patch) | |
| tree | 86902c3ea811ee8c4b8507a026f5563306340357 /stdio-common/printf_fp.c | |
| parent | 659a63fb7ba0b2c9bc45034283a302afe56a6ebe (diff) | |
| download | glibc-003c9895a89e71767ad64bafac1ca99622be2eb7.tar.gz | |
Print sign of NaN values.
Diffstat (limited to 'stdio-common/printf_fp.c')
| -rw-r--r-- | stdio-common/printf_fp.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/stdio-common/printf_fp.c b/stdio-common/printf_fp.c index 43c43c2039..cd3ada6441 100644 --- a/stdio-common/printf_fp.c +++ b/stdio-common/printf_fp.c @@ -28,6 +28,7 @@ #include <float.h> #include <gmp-mparam.h> #include <gmp.h> +#include <ieee754.h> #include <stdlib/gmp-impl.h> #include <stdlib/longlong.h> #include <stdlib/fpioconst.h> @@ -335,6 +336,8 @@ ___printf_fp (FILE *fp, /* Check for special values: not a number or infinity. */ if (__isnanl (fpnum.ldbl)) { + union ieee854_long_double u = { .d = fpnum.ldbl }; + is_neg = u.ieee.negative != 0; if (isupper (info->spec)) { special = "NAN"; @@ -345,10 +348,10 @@ ___printf_fp (FILE *fp, special = "nan"; wspecial = L"nan"; } - is_neg = 0; } else if (__isinfl (fpnum.ldbl)) { + is_neg = fpnum.ldbl < 0; if (isupper (info->spec)) { special = "INF"; @@ -359,7 +362,6 @@ ___printf_fp (FILE *fp, special = "inf"; wspecial = L"inf"; } - is_neg = fpnum.ldbl < 0; } else { @@ -379,7 +381,8 @@ ___printf_fp (FILE *fp, /* Check for special values: not a number or infinity. */ if (__isnan (fpnum.dbl)) { - is_neg = 0; + union ieee754_double u = { .d = fpnum.dbl }; + is_neg = u.ieee.negative != 0; if (isupper (info->spec)) { special = "NAN"; |