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| author | Ulrich Drepper <drepper@redhat.com> | 1998-08-31 16:30:27 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 1998-08-31 16:30:27 +0000 |
| commit | bfce746a87e205a682b85e144e056029a8a30d07 (patch) | |
| tree | 081313643ad086d15559161dc218d203b62f605d /math/math.h | |
| parent | ac72fbb190675473855c33d79ccd75b0de68c0d1 (diff) | |
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Update.
1998-08-31 15:56 Ulrich Drepper <drepper@cygnus.com>
* db2/db_int.h: Use <db.h> instead of "db.h" to find header in include.
* include/stdio.h: Add __vsscanf.
* libio/stdio.h: Make vfscanf, scanf, and vsscanf available if
__USE_ISOC9X.
Remove __vsscanf declaration.
Always declare fgetpos and fsetpos.
* math/math.h: Define isinf as macro.
* math/bits/mathcalls.h: Change to declare __isinf all the time.
Don't declare scalb for ISO C 9x.
* math/tgmath.h: Define fma. Rewrite the underlying macros.
* stdlib/stdlib.h: Declare strtof and strtold is __USE_ISOC9X.
* sysdeps/unix/sysv/linux/bits/sigcontext.h: Allow inclusion from
sys/ucontext.h.
* sysdeps/wordsize-32/inttypes.h: Define missing PRI* and SCN*
macros.
1998-08-31 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* sysdeps/standalone/bits/errno.h (ENOMSG): Remove duplicate.
Reported by jreising@frequentis.com [PR libc/767].
1998-08-31 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* io/lockf.c (lockf): Move initilisation of fl.l_whence and
fl.l_start at beginning of function.
Patch by Geoff. Dash <geoffd@zeta.org.au> [PR libc/769].
Diffstat (limited to 'math/math.h')
| -rw-r--r-- | math/math.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/math/math.h b/math/math.h index 5381f29e9a..d7487dda4a 100644 --- a/math/math.h +++ b/math/math.h @@ -196,6 +196,13 @@ enum : sizeof (x) == sizeof (double) ? \ __isnan (x) : __isnanl (x)) +/* Return nonzero value is X is positive or negative infinity. */ +# define isinf(x) \ + (sizeof (x) == sizeof (float) ? \ + __isinff (x) \ + : sizeof (x) == sizeof (double) ? \ + __isinf (x) : __isinfl (x)) + #endif /* Use ISO C 9X. */ #ifdef __USE_MISC |