From b9b49b44fdc1c74ad85076bca9ff7ea0200e2214 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Sun, 28 Dec 1997 16:01:53 +0000 Subject: Update. 1997-12-28 15:08 Ulrich Drepper * sysdeps/powerpc/__longjmp.S: Define _SETJMP_H before including . * sysdeps/powerpc/setjmp.S: Likewise. Patches by Matt McLean . * 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 * 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 * 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 * posix/sched.h: timespec is in . * sysdeps/unix/sysv/linux/sys/kd.h: Don't redefine _LINUX_TYPES_H. --- manual/arith.texi | 19 ++++++++++++++++--- manual/math.texi | 12 +++++++++--- 2 files changed, 25 insertions(+), 6 deletions(-) (limited to 'manual') 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 diff --git a/manual/math.texi b/manual/math.texi index d6206eb4fe..b784afe52b 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 -- cgit v1.2.3