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author | Ulrich Drepper <drepper@redhat.com> | 1997-12-28 16:01:53 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1997-12-28 16:01:53 +0000 |
commit | b9b49b44fdc1c74ad85076bca9ff7ea0200e2214 (patch) | |
tree | 9fb0945b8576709212f84f3bbc6bd051e36b36af /manual/arith.texi | |
parent | 9756dfe161e523a5d543fb2b1f33a7e682a36342 (diff) | |
download | glibc-b9b49b44fdc1c74ad85076bca9ff7ea0200e2214.tar.gz |
Update.cvs/libc-ud-971228
1997-12-28 15:08 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/powerpc/__longjmp.S: Define _SETJMP_H before including
<bits/setjmp.h>.
* sysdeps/powerpc/setjmp.S: Likewise.
Patches by Matt McLean <keys@keys.got.net>.
* Make-dist (sysdep_dirs): Ignore bits dirs while searching.
* Makefile: Undo last patch.
(distribute): Add test-installation.pl.
* configure.in: Correct handling of --enable-add-ons without parameter.
Correct address of WWW pages.
* libc.map: Add _nl_domain_bindings.
* db2/mutex/tsl_parisc.s: New file.
* iconvdata/Makefile (distribute): Add jis0201.c, jis0208.c, jis0212.c,
and extra-module.mk.
* localedata/Makefile (distribute): New. Add all the files.
* stdlib/Makefile (headers): Add inttypes.h.
(routines): Add strtoimax, strtoumax, wcstoimax, and wcstoumax.
* sysdeps/generic/inttypes.h: New file.
* sysdeps/generic/strtoimax.c: New file.
* sysdeps/generic/strtoumax.c: New file.
* sysdeps/generic/wcstoimax.c: New file.
* sysdeps/generic/wcstoumax.c: New file.
* sysdeps/wordsize-32/Dist: Removed.
* sysdeps/wordsize-32/Makefile: Removed.
* sysdeps/wordsize-64/Dist: Removed.
* sysdeps/wordsize-64/Makefile: Removed.
* sysdeps/generic/bits/environments.h: New file.
* include/limits.h: Define MB_LEN_MAX in any case to 6. The gcc
header is still not correct.
* io/fcntl.h [__USE_FILE_OFFSET64]: We have to use the __*64 types.
* posix/unistd.h: Likewise.
* sysdeps/generic/sys/mman.h: Likewise.
* sysdeps/unix/sysv/linux/sys/mman.h: Likewise.
* manual/arith.texi: Change definition of mul macro.
* manual/math.texi: Likewise.
* misc/Makefile (routines): Add mmap64.
* sysdeps/generic/mmap64.c: New file.
* sysdeps/unix/sysv/linux/alpha/mmap64.c: New file.
* sysdeps/unix/sysv/linux/sparc/sparc64/mmap64.c: New file.
* sysdeps/unix/sysv/linux/alpha/syscalls.list: Add __mmap64 and mmap64
aliases to mmap.
* sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise.
* sysdeps/generic/setrlimit64.c: Don't mark as stub.
* nis/nss_nis/nis-hosts.c (internal_nis_gethostent_r): Pretty print.
* nis(rpcsvc/nis_tags.h: Prevent warning by unknown pragma.
* sysdeps/posix/mk-stdiolim.c: Generate correct file which defines
FOPEN_MAX also when included by limits.h.
* sysdeps/unix/sysv/linux/stdio_lim.h.in: Likewise.
* sysdeps/unix/sysv/linux/Dist: Add oldsiglist.c, netax25/ax25.h,
and netrom/netrom.h.
* sysdeps/unix/sysv/linux/Makefile [$(subdir)=stdio-common]: Add
oldsiglist to sysdep_routines, not aux.
[$(subdir)=inet] (sysdep_headers): Add netax25/ax25.h, netrom/netrom.h.
* sysdeps/unix/sysv/linux/bits/socket.h: Remove SOL_AX25, SOL_ATALK,
and SOL_NETROM definition.
* sysdeps/unix/sysv/linux/i386/Dist: Add s_pwrite64.S and s_pread64.S.
* sysdeps/unix/sysv/linux/net/route.h: Pretty print.
* sysdeps/unix/sysv/linux/netatalk/at.h: Pretty print.
1997-12-25 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/sysv/linux/alpha/net/route.h: New file.
* sysdeps/unix/sysv/linux/alpha/kernel_sigaction.h: Replace
sa_handler with k_sa_handler.
* sysdeps/unix/sysv/linux/alpha/syscalls.list: Add __getrlimit as
strong alias.
Reported by a sun.
* sysdeps/unix/sysv/linux/sigsuspend.c: Don't define
__libc_have_rt_sigs here.
* sysdeps/unix/sysv/linux/sigaction.c: Do it instead here.
* sysdeps/unix/sysv/linux/i386/sigaction.c: Likewise.
* sysdeps/unix/sysv/linux/sigpending.c: Correct comment.
* sysdeps/unix/sysv/linux/sigprocmask.c: Likewise.
1997-12-11 07:51 Geoff Keating <geoffk@ozemail.com.au>
* sysdeps/powerpc/atomicity.h: New file.
* sysdeps/mach/powerpc/machine-lock.h: New file.
* Rules: Use -fpic to build anything that might end up in a users'
shared library.
* sysdeps/powerpc/s_fdim.c: New file.
* sysdeps/powerpc/s_fdimf.c: New file.
* sysdeps/powerpc/s_fmax.S: New file.
* sysdeps/powerpc/s_fmaxf.S: New file.
* sysdeps/powerpc/s_fmin.S: New file.
* sysdeps/powerpc/s_fminf.S: New file.
* sysdeps/powerpc/s_llrint.c: Now is for double.
* sysdeps/powerpc/s_llrintf.c: New file.
* sysdeps/powerpc/s_llround.c: Now is for double.
* sysdeps/powerpc/s_llroundf.c: New file.
* sysdeps/powerpc/s_lrint.c: Now is for double.
* sysdeps/powerpc/s_lrintf.S: New file.
* sysdeps/powerpc/s_lround.c: Now is for double.
* sysdeps/powerpc/s_lroundf.c: New file.
* sysdeps/powerpc/bits/mathinlines.h: Add inline versions of lrint,
lrintf, fdim, fdimf.
* sysdeps/unix/sysv/linux/powerpc/kernel_termios.h: Don't use bits/
file directly, use its parent.
* sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c: Re-instate '++'
(for the third time).
1997-12-20 13:50 Richard Henderson <rth@cygnus.com>
* posix/sched.h: timespec is in <time.h>.
* sysdeps/unix/sysv/linux/sys/kd.h: Don't redefine _LINUX_TYPES_H.
Diffstat (limited to 'manual/arith.texi')
-rw-r--r-- | manual/arith.texi | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/manual/arith.texi b/manual/arith.texi index 3a6bb434de..563d9859af 100644 --- a/manual/arith.texi +++ b/manual/arith.texi @@ -2,17 +2,23 @@ @ifclear cdot @ifhtml @set cdot · +@macro mul +· +@end macro @end ifhtml @iftex -@set cdot @cdot +@set cdot · +@macro mul +@cdot +@end macro @end iftex @ifclear cdot @set cdot x -@end ifclear @macro mul -@value{cdot} +x @end macro @end ifclear +@end ifclear @node Arithmetic, Date and Time, Mathematics, Top @chapter Low-Level Arithmetic Functions @@ -211,6 +217,13 @@ This function returns @code{-1} if @var{x} represents negative infinity, This function returns a nonzero value if @var{x} is a ``not a number'' value, and zero otherwise. (You can just as well use @code{@var{x} != @var{x}} to get the same result). + +However, @code{isnan} will not raise an invalid exception if @var{x} is +a signalling NaN, while @code{@var{x} != @var{x}} will. This makes +@code{isnan} much slower than the alternative; in code where performance +matters and signalling NaNs are unimportant, it's usually better to use +@code{@var{x} != @var{x}}, even though this is harder to understand. + @end deftypefun @comment math.h |