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authorUlrich Drepper <drepper@redhat.com>1997-12-28 16:01:53 +0000
committerUlrich Drepper <drepper@redhat.com>1997-12-28 16:01:53 +0000
commitb9b49b44fdc1c74ad85076bca9ff7ea0200e2214 (patch)
tree9fb0945b8576709212f84f3bbc6bd051e36b36af /manual
parent9756dfe161e523a5d543fb2b1f33a7e682a36342 (diff)
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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')
-rw-r--r--manual/arith.texi19
-rw-r--r--manual/math.texi12
2 files changed, 25 insertions, 6 deletions
diff --git a/manual/arith.texi b/manual/arith.texi
index 3a6bb43..563d985 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
diff --git a/manual/math.texi b/manual/math.texi
index d6206eb..b784afe 100644
--- a/manual/math.texi
+++ b/manual/math.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
@iftex
@set infty @infty
@end iftex