glibc/sysdeps/generic/memcmp.c
Ulrich Drepper 478b92f03a Update.
1997-06-23 23:39  Ulrich Drepper  <drepper@cygnus.com>

	* string/Makefile (headers): Change bytesex.h to bits/endian.h.
	* sysdeps/generic/Makefile: Don't try to generate bytesex.h, but
	bits/endian.h.

	* math/libm-test.c (lgamma_test): Make sure the test of the ilogb
	function will not fail because of exceptions.

	* math/math.h: Add warning about use of M_* constants.
	Pretty print.

1997-06-23 11:36  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* hurd/path-lookup.c: Change GPL to LGPL, update and reformat
	copyright, remove trailing white spaces and send through unexpand.
	* inet/netinet/icmp6.h: Likewise.
	* inet/netinet/in.h: Likewise.
	* inet/netinet/ip6.h: Likewise.
	* locale/programs/xmalloc.c: Likewise.
	* locale/programs/xstrdup.c: Likewise.
	* sysdeps/generic/make_siglist.c: Likewise.
	* sysdeps/generic/morecore.c: Likewise.
	* sysdeps/generic/sbrk.c: Likewise.
	* sysdeps/generic/signame.c: Likewise.
	* sysdeps/generic/signame.h: Likewise.
	* sysdeps/generic/netinet/inbits.h: Likewise.
	* sysdeps/posix/getpagesize.c: Likewise.
	* sysdeps/unix/errnos-tmpl.c: Likewise.
	* sysdeps/unix/getpagesize.c: Likewise.
	* sysdeps/unix/make_errlist.c: Likewise.
	* sysdeps/unix/mkfifo.c: Likewise.
	* sysdeps/unix/nlist.c: Likewise.
	* sysdeps/unix/start.c: Likewise.
	* sysdeps/unix/sysv/linux/netinet/inbits.h: Likewise.

	* munch-tmpl.c: Update and reformat copyright, remove trailing
	white spaces and send through unexpand.
	* libio/clearerr_u.c: Likewise.
	* libio/memstream.c: Likewise.
	* libio/putc_u.c: Likewise.
	* libio/putchar_u.c: Likewise.
	* stdio-common/scanf.c: Likewise.
	* stdlib/longlong.h: Likewise.
	* sysdeps/alpha/__longjmp.c: Likewise.
	* sysdeps/alpha/divrem.h: Likewise.
	* sysdeps/alpha/machine-gmon.h: Likewise.
	* sysdeps/alpha/setjmp_aux.c: Likewise.
	* sysdeps/alpha/bits/setjmp.h: Likewise.
	* sysdeps/arm/fpu_control.h: Likewise.
	* sysdeps/generic/_strerror.c: Likewise.
	* sysdeps/generic/det_endian.c: Likewise.
	* sysdeps/generic/fdatasync.c: Likewise.
	* sysdeps/generic/fpu_control.c: Likewise.
	* sysdeps/generic/ftime.c: Likewise.
	* sysdeps/generic/getdomain.c: Likewise.
	* sysdeps/generic/group_member.c: Likewise.
	* sysdeps/generic/ldiv.c: Likewise.
	* sysdeps/generic/lldiv.c: Likewise.
	* sysdeps/generic/lxstat.c: Likewise.
	* sysdeps/generic/memcmp.c: Likewise.
	* sysdeps/generic/memmem.c: Likewise.
	* sysdeps/generic/mig-reply.c: Likewise.
	* sysdeps/generic/pagecopy.h: Likewise.
	* sysdeps/generic/profil-counter.h: Likewise.
	* sysdeps/generic/pselect.c: Likewise.
	* sysdeps/generic/setfpucw.c: Likewise.
	* sysdeps/generic/stpcpy.c: Likewise.
	* sysdeps/generic/uname.c: Likewise.
	* sysdeps/generic/varargs.h: Likewise.
	* sysdeps/generic/vlimit.c: Likewise.
	* sysdeps/generic/bits/sigaction.h: Likewise.
	* sysdeps/generic/bits/ustat.h: Likewise.
	* sysdeps/generic/netinet/if_ether.h: Likewise.
	* sysdeps/generic/sys/swap.h: Likewise.
	* sysdeps/generic/sys/sysinfo.h: Likewise.
	* sysdeps/i386/init-first.c: Likewise.
	* sysdeps/i386/ldbl2mpn.c: Likewise.
	* sysdeps/i386/memcopy.h: Likewise.
	* sysdeps/i386/i586/memcopy.h: Likewise.
	* sysdeps/i860/memcopy.h: Likewise.
	* sysdeps/m68k/__longjmp.c: Likewise.
	* sysdeps/m68k/fpu_control.h: Likewise.
	* sysdeps/m68k/memcopy.h: Likewise.
	* sysdeps/m68k/s_isinfl.c: Likewise.
	* sysdeps/m68k/s_isnanl.c: Likewise.
	* sysdeps/m68k/setjmp.c: Likewise.
	* sysdeps/mach/_strerror.c: Likewise.
	* sysdeps/mach/getsysstats.c: Likewise.
	* sysdeps/mach/mprotect.c: Likewise.
	* sysdeps/mach/munmap.c: Likewise.
	* sysdeps/mach/pagecopy.h: Likewise.
	* sysdeps/mach/start.c: Likewise.
	* sysdeps/mach/sysdep.h: Likewise.
	* sysdeps/mach/alpha/machine-lock.h: Likewise.
	* sysdeps/mach/alpha/machine-sp.h: Likewise.
	* sysdeps/mach/alpha/sysdep.h: Likewise.
	* sysdeps/mach/alpha/thread_state.h: Likewise.
	* sysdeps/mach/hppa/machine-lock.h: Likewise.
	* sysdeps/mach/hurd/access.c: Likewise.
	* sysdeps/mach/hurd/closedir.c: Likewise.
	* sysdeps/mach/hurd/dirstream.h: Likewise.
	* sysdeps/mach/hurd/dl-cache.c: Likewise.
	* sysdeps/mach/hurd/euidaccess.c: Likewise.
	* sysdeps/mach/hurd/fdatasync.c: Likewise.
	* sysdeps/mach/hurd/fexecve.c: Likewise.
	* sysdeps/mach/hurd/fork.c: Likewise.
	* sysdeps/mach/hurd/fpathconf.c: Likewise.
	* sysdeps/mach/hurd/fstatfs.c: Likewise.
	* sysdeps/mach/hurd/fxstat.c: Likewise.
	* sysdeps/mach/hurd/getcwd.c: Likewise.
	* sysdeps/mach/hurd/getpriority.c: Likewise.
	* sysdeps/mach/hurd/getrlimit.c: Likewise.
	* sysdeps/mach/hurd/getsid.c: Likewise.
	* sysdeps/mach/hurd/group_member.c: Likewise.
	* sysdeps/mach/hurd/kill.c: Likewise.
	* sysdeps/mach/hurd/lchown.c: Likewise.
	* sysdeps/mach/hurd/lxstat.c: Likewise.
	* sysdeps/mach/hurd/mig-reply.c: Likewise.
	* sysdeps/mach/hurd/mmap.c: Likewise.
	* sysdeps/mach/hurd/opendir.c: Likewise.
	* sysdeps/mach/hurd/pathconf.c: Likewise.
	* sysdeps/mach/hurd/profil.c: Likewise.
	* sysdeps/mach/hurd/ptrace.c: Likewise.
	* sysdeps/mach/hurd/readdir.c: Likewise.
	* sysdeps/mach/hurd/readdir_r.c: Likewise.
	* sysdeps/mach/hurd/send.c: Likewise.
	* sysdeps/mach/hurd/sendto.c: Likewise.
	* sysdeps/mach/hurd/setpriority.c: Likewise.
	* sysdeps/mach/hurd/statfs.c: Likewise.
	* sysdeps/mach/hurd/ttyname.c: Likewise.
	* sysdeps/mach/hurd/uname.c: Likewise.
	* sysdeps/mach/hurd/xstat.c: Likewise.
	* sysdeps/mach/hurd/alpha/exc2signal.c: Likewise.
	* sysdeps/mach/hurd/alpha/longjmp-ts.c: Likewise.
	* sysdeps/mach/hurd/alpha/sigreturn.c: Likewise.
	* sysdeps/mach/hurd/alpha/trampoline.c: Likewise.
	* sysdeps/mach/hurd/alpha/bits/sigcontext.h: Likewise.
	* sysdeps/mach/hurd/hppa/trampoline.c: Likewise.
	* sysdeps/mach/hurd/hppa/bits/sigcontext.h: Likewise.
	* sysdeps/mach/hurd/i386/exc2signal.c: Likewise.
	* sysdeps/mach/hurd/i386/intr-msg.h: Likewise.
	* sysdeps/mach/hurd/i386/longjmp-ts.c: Likewise.
	* sysdeps/mach/hurd/i386/sigreturn.c: Likewise.
	* sysdeps/mach/hurd/i386/trampoline.c: Likewise.
	* sysdeps/mach/hurd/i386/bits/sigcontext.h: Likewise.
	* sysdeps/mach/hurd/mips/bits/sigcontext.h: Likewise.
	* sysdeps/mach/hurd/sys/param.h: Likewise.
	* sysdeps/mach/i386/machine-lock.h: Likewise.
	* sysdeps/mach/i386/machine-sp.h: Likewise.
	* sysdeps/mach/i386/sysdep.h: Likewise.
	* sysdeps/mach/i386/thread_state.h: Likewise.
	* sysdeps/posix/dup2.c: Likewise.
	* sysdeps/posix/flock.c: Likewise.
	* sysdeps/posix/getdtsz.c: Likewise.
	* sysdeps/posix/gettimeofday.c: Likewise.
	* sysdeps/posix/isatty.c: Likewise.
	* sysdeps/posix/killpg.c: Likewise.
	* sysdeps/posix/mk-stdiolim.c: Likewise.
	* sysdeps/posix/profil.c: Likewise.
	* sysdeps/posix/remove.c: Likewise.
	* sysdeps/posix/rename.c: Likewise.
	* sysdeps/posix/sigsuspend.c: Likewise.
	* sysdeps/posix/tempname.c: Likewise.
	* sysdeps/posix/truncate.c: Likewise.
	* sysdeps/posix/utimes.c: Likewise.
	* sysdeps/posix/wait.c: Likewise.
	* sysdeps/posix/wait3.c: Likewise.
	* sysdeps/rs6000/memcopy.h: Likewise.
	* sysdeps/sparc/memcopy.h: Likewise.
	* sysdeps/standalone/close.c: Likewise.
	* sysdeps/standalone/dirstream.h: Likewise.
	* sysdeps/standalone/filedesc.h: Likewise.
	* sysdeps/standalone/open.c: Likewise.
	* sysdeps/standalone/read.c: Likewise.
	* sysdeps/standalone/standalone.h: Likewise.
	* sysdeps/standalone/write.c: Likewise.
	* sysdeps/standalone/bits/stdio_lim.h: Likewise.
	* sysdeps/standalone/i386/i386.h: Likewise.
	* sysdeps/standalone/m68k/m68020/m68020.h: Likewise.
	* sysdeps/stub/__longjmp.c: Likewise.
	* sysdeps/stub/accept.c: Likewise.
	* sysdeps/stub/access.c: Likewise.
	* sysdeps/stub/acct.c: Likewise.
	* sysdeps/stub/adjtime.c: Likewise.
	* sysdeps/stub/alarm.c: Likewise.
	* sysdeps/stub/bind.c: Likewise.
	* sysdeps/stub/brk.c: Likewise.
	* sysdeps/stub/bsd-_setjmp.c: Likewise.
	* sysdeps/stub/bsd-setjmp.c: Likewise.
	* sysdeps/stub/chdir.c: Likewise.
	* sysdeps/stub/chflags.c: Likewise.
	* sysdeps/stub/chmod.c: Likewise.
	* sysdeps/stub/chown.c: Likewise.
	* sysdeps/stub/chroot.c: Likewise.
	* sysdeps/stub/clock.c: Likewise.
	* sysdeps/stub/close.c: Likewise.
	* sysdeps/stub/closedir.c: Likewise.
	* sysdeps/stub/connect.c: Likewise.
	* sysdeps/stub/ctermid.c: Likewise.
	* sysdeps/stub/cuserid.c: Likewise.
	* sysdeps/stub/dbl2mpn.c: Likewise.
	* sysdeps/stub/dirstream.h: Likewise.
	* sysdeps/stub/dup.c: Likewise.
	* sysdeps/stub/dup2.c: Likewise.
	* sysdeps/stub/exc2signal.c: Likewise.
	* sysdeps/stub/execve.c: Likewise.
	* sysdeps/stub/fchflags.c: Likewise.
	* sysdeps/stub/fchown.c: Likewise.
	* sysdeps/stub/fcntl.c: Likewise.
	* sysdeps/stub/fdopen.c: Likewise.
	* sysdeps/stub/fexecve.c: Likewise.
	* sysdeps/stub/flock.c: Likewise.
	* sysdeps/stub/fork.c: Likewise.
	* sysdeps/stub/fpathconf.c: Likewise.
	* sysdeps/stub/fpu_control.h: Likewise.
	* sysdeps/stub/fstatfs.c: Likewise.
	* sysdeps/stub/fsync.c: Likewise.
	* sysdeps/stub/ftruncate.c: Likewise.
	* sysdeps/stub/fxstat.c: Likewise.
	* sysdeps/stub/getcwd.c: Likewise.
	* sysdeps/stub/getdomain.c: Likewise.
	* sysdeps/stub/getdtsz.c: Likewise.
	* sysdeps/stub/getegid.c: Likewise.
	* sysdeps/stub/geteuid.c: Likewise.
	* sysdeps/stub/getgid.c: Likewise.
	* sysdeps/stub/getgroups.c: Likewise.
	* sysdeps/stub/gethostid.c: Likewise.
	* sysdeps/stub/gethostname.c: Likewise.
	* sysdeps/stub/getitimer.c: Likewise.
	* sysdeps/stub/getpeername.c: Likewise.
	* sysdeps/stub/getpgid.c: Likewise.
	* sysdeps/stub/getpid.c: Likewise.
	* sysdeps/stub/getppid.c: Likewise.
	* sysdeps/stub/getpriority.c: Likewise.
	* sysdeps/stub/getrlimit.c: Likewise.
	* sysdeps/stub/getrusage.c: Likewise.
	* sysdeps/stub/getsid.c: Likewise.
	* sysdeps/stub/getsockname.c: Likewise.
	* sysdeps/stub/getsockopt.c: Likewise.
	* sysdeps/stub/getsysstats.c: Likewise.
	* sysdeps/stub/gettimeofday.c: Likewise.
	* sysdeps/stub/getuid.c: Likewise.
	* sysdeps/stub/gtty.c: Likewise.
	* sysdeps/stub/if_index.c: Likewise.
	* sysdeps/stub/init-posix.c: Likewise.
	* sysdeps/stub/ioctl.c: Likewise.
	* sysdeps/stub/isatty.c: Likewise.
	* sysdeps/stub/isfdtype.c: Likewise.
	* sysdeps/stub/jmp-unwind.c: Likewise.
	* sysdeps/stub/kill.c: Likewise.
	* sysdeps/stub/killpg.c: Likewise.
	* sysdeps/stub/ldbl2mpn.c: Likewise.
	* sysdeps/stub/link.c: Likewise.
	* sysdeps/stub/listen.c: Likewise.
	* sysdeps/stub/lockfile.c: Likewise.
	* sysdeps/stub/longjmp-ts.c: Likewise.
	* sysdeps/stub/lseek.c: Likewise.
	* sysdeps/stub/lxstat.c: Likewise.
	* sysdeps/stub/machine-lock.h: Likewise.
	* sysdeps/stub/machine-sp.h: Likewise.
	* sysdeps/stub/madvise.c: Likewise.
	* sysdeps/stub/mkdir.c: Likewise.
	* sysdeps/stub/mkfifo.c: Likewise.
	* sysdeps/stub/mmap.c: Likewise.
	* sysdeps/stub/morecore.c: Likewise.
	* sysdeps/stub/mpn2dbl.c: Likewise.
	* sysdeps/stub/mpn2flt.c: Likewise.
	* sysdeps/stub/mpn2ldbl.c: Likewise.
	* sysdeps/stub/mprotect.c: Likewise.
	* sysdeps/stub/msgctl.c: Likewise.
	* sysdeps/stub/msgget.c: Likewise.
	* sysdeps/stub/msgrcv.c: Likewise.
	* sysdeps/stub/msgsnd.c: Likewise.
	* sysdeps/stub/munmap.c: Likewise.
	* sysdeps/stub/nanosleep.c: Likewise.
	* sysdeps/stub/nice.c: Likewise.
	* sysdeps/stub/nlist.c: Likewise.
	* sysdeps/stub/open.c: Likewise.
	* sysdeps/stub/opendir.c: Likewise.
	* sysdeps/stub/pathconf.c: Likewise.
	* sysdeps/stub/pause.c: Likewise.
	* sysdeps/stub/pipestream.c: Likewise.
	* sysdeps/stub/poll.c: Likewise.
	* sysdeps/stub/profil.c: Likewise.
	* sysdeps/stub/ptrace.c: Likewise.
	* sysdeps/stub/putenv.c: Likewise.
	* sysdeps/stub/read.c: Likewise.
	* sysdeps/stub/readdir.c: Likewise.
	* sysdeps/stub/readdir_r.c: Likewise.
	* sysdeps/stub/readlink.c: Likewise.
	* sysdeps/stub/reboot.c: Likewise.
	* sysdeps/stub/recv.c: Likewise.
	* sysdeps/stub/recvfrom.c: Likewise.
	* sysdeps/stub/recvmsg.c: Likewise.
	* sysdeps/stub/remove.c: Likewise.
	* sysdeps/stub/rename.c: Likewise.
	* sysdeps/stub/revoke.c: Likewise.
	* sysdeps/stub/rewinddir.c: Likewise.
	* sysdeps/stub/rmdir.c: Likewise.
	* sysdeps/stub/sbrk.c: Likewise.
	* sysdeps/stub/sched_getp.c: Likewise.
	* sysdeps/stub/sched_gets.c: Likewise.
	* sysdeps/stub/sched_primax.c: Likewise.
	* sysdeps/stub/sched_primin.c: Likewise.
	* sysdeps/stub/sched_rr_gi.c: Likewise.
	* sysdeps/stub/sched_setp.c: Likewise.
	* sysdeps/stub/sched_sets.c: Likewise.
	* sysdeps/stub/sched_yield.c: Likewise.
	* sysdeps/stub/seekdir.c: Likewise.
	* sysdeps/stub/select.c: Likewise.
	* sysdeps/stub/semctl.c: Likewise.
	* sysdeps/stub/semget.c: Likewise.
	* sysdeps/stub/semop.c: Likewise.
	* sysdeps/stub/send.c: Likewise.
	* sysdeps/stub/sendmsg.c: Likewise.
	* sysdeps/stub/sendto.c: Likewise.
	* sysdeps/stub/setdomain.c: Likewise.
	* sysdeps/stub/setegid.c: Likewise.
	* sysdeps/stub/setenv.c: Likewise.
	* sysdeps/stub/seteuid.c: Likewise.
	* sysdeps/stub/setgid.c: Likewise.
	* sysdeps/stub/setgroups.c: Likewise.
	* sysdeps/stub/sethostid.c: Likewise.
	* sysdeps/stub/sethostname.c: Likewise.
	* sysdeps/stub/setjmp.c: Likewise.
	* sysdeps/stub/setlogin.c: Likewise.
	* sysdeps/stub/setpgid.c: Likewise.
	* sysdeps/stub/setpriority.c: Likewise.
	* sysdeps/stub/setregid.c: Likewise.
	* sysdeps/stub/setreuid.c: Likewise.
	* sysdeps/stub/setrlimit.c: Likewise.
	* sysdeps/stub/setsid.c: Likewise.
	* sysdeps/stub/setsockopt.c: Likewise.
	* sysdeps/stub/settimeofday.c: Likewise.
	* sysdeps/stub/setuid.c: Likewise.
	* sysdeps/stub/shmctl.c: Likewise.
	* sysdeps/stub/shmget.c: Likewise.
	* sysdeps/stub/shutdown.c: Likewise.
	* sysdeps/stub/sigaction.c: Likewise.
	* sysdeps/stub/sigaltstack.c: Likewise.
	* sysdeps/stub/sigblock.c: Likewise.
	* sysdeps/stub/sigintr.c: Likewise.
	* sysdeps/stub/sigpending.c: Likewise.
	* sysdeps/stub/sigprocmask.c: Likewise.
	* sysdeps/stub/sigreturn.c: Likewise.
	* sysdeps/stub/sigsetmask.c: Likewise.
	* sysdeps/stub/sigstack.c: Likewise.
	* sysdeps/stub/sigsuspend.c: Likewise.
	* sysdeps/stub/sigvec.c: Likewise.
	* sysdeps/stub/socket.c: Likewise.
	* sysdeps/stub/socketpair.c: Likewise.
	* sysdeps/stub/sstk.c: Likewise.
	* sysdeps/stub/statfs.c: Likewise.
	* sysdeps/stub/stdio_init.c: Likewise.
	* sysdeps/stub/stime.c: Likewise.
	* sysdeps/stub/stty.c: Likewise.
	* sysdeps/stub/swapoff.c: Likewise.
	* sysdeps/stub/swapon.c: Likewise.
	* sysdeps/stub/symlink.c: Likewise.
	* sysdeps/stub/sync.c: Likewise.
	* sysdeps/stub/syscall.c: Likewise.
	* sysdeps/stub/sysd-stdio.c: Likewise.
	* sysdeps/stub/system.c: Likewise.
	* sysdeps/stub/tcdrain.c: Likewise.
	* sysdeps/stub/tcflow.c: Likewise.
	* sysdeps/stub/tcflush.c: Likewise.
	* sysdeps/stub/tcgetattr.c: Likewise.
	* sysdeps/stub/tcgetpgrp.c: Likewise.
	* sysdeps/stub/tcsendbrk.c: Likewise.
	* sysdeps/stub/tcsetpgrp.c: Likewise.
	* sysdeps/stub/telldir.c: Likewise.
	* sysdeps/stub/thread_state.h: Likewise.
	* sysdeps/stub/time.c: Likewise.
	* sysdeps/stub/times.c: Likewise.
	* sysdeps/stub/trampoline.c: Likewise.
	* sysdeps/stub/truncate.c: Likewise.
	* sysdeps/stub/ttyname.c: Likewise.
	* sysdeps/stub/ttyname_r.c: Likewise.
	* sysdeps/stub/ualarm.c: Likewise.
	* sysdeps/stub/ulimit.c: Likewise.
	* sysdeps/stub/umask.c: Likewise.
	* sysdeps/stub/unlink.c: Likewise.
	* sysdeps/stub/usleep.c: Likewise.
	* sysdeps/stub/ustat.c: Likewise.
	* sysdeps/stub/utime.c: Likewise.
	* sysdeps/stub/utimes.c: Likewise.
	* sysdeps/stub/vdprintf.c: Likewise.
	* sysdeps/stub/vhangup.c: Likewise.
	* sysdeps/stub/wait.c: Likewise.
	* sysdeps/stub/wait3.c: Likewise.
	* sysdeps/stub/wait4.c: Likewise.
	* sysdeps/stub/waitpid.c: Likewise.
	* sysdeps/stub/write.c: Likewise.
	* sysdeps/stub/xmknod.c: Likewise.
	* sysdeps/stub/xstat.c: Likewise.
	* sysdeps/stub/bits/errno.h: Likewise.
	* sysdeps/stub/bits/sigcontext.h: Likewise.
	* sysdeps/unix/fxstat.c: Likewise.
	* sysdeps/unix/mk-local_lim.c: Likewise.
	* sysdeps/unix/mkdir.c: Likewise.
	* sysdeps/unix/nice.c: Likewise.
	* sysdeps/unix/rmdir.c: Likewise.
	* sysdeps/unix/stime.c: Likewise.
	* sysdeps/unix/telldir.c: Likewise.
	* sysdeps/unix/xstat.c: Likewise.
	* sysdeps/unix/arm/sysdep.h: Likewise.
	* sysdeps/unix/bsd/ftime.c: Likewise.
	* sysdeps/unix/bsd/isatty.c: Likewise.
	* sysdeps/unix/bsd/setegid.c: Likewise.
	* sysdeps/unix/bsd/seteuid.c: Likewise.
	* sysdeps/unix/bsd/setsid.c: Likewise.
	* sysdeps/unix/bsd/sigaction.c: Likewise.
	* sysdeps/unix/bsd/sigprocmask.c: Likewise.
	* sysdeps/unix/bsd/tcgetattr.c: Likewise.
	* sysdeps/unix/bsd/tcsetattr.c: Likewise.
	* sysdeps/unix/bsd/times.c: Likewise.
	* sysdeps/unix/bsd/ulimit.c: Likewise.
	* sysdeps/unix/bsd/bits/dirent.h: Likewise.
	* sysdeps/unix/bsd/bsd4.4/tcdrain.c: Likewise.
	* sysdeps/unix/bsd/bsd4.4/wait.c: Likewise.
	* sysdeps/unix/bsd/bsd4.4/waitpid.c: Likewise.
	* sysdeps/unix/bsd/hp/m68k/sysdep.h: Likewise.
	* sysdeps/unix/bsd/osf/alpha/sysdep.h: Likewise.
	* sysdeps/unix/bsd/sequent/i386/sysdep.h: Likewise.
	* sysdeps/unix/bsd/sony/newsos/m68k/sysdep.h: Likewise.
	* sysdeps/unix/bsd/sun/m68k/sigtramp.c: Likewise.
	* sysdeps/unix/bsd/sun/m68k/sysdep.h: Likewise.
	* sysdeps/unix/bsd/sun/m68k/bits/sigcontext.h: Likewise.
	* sysdeps/unix/bsd/sun/sparc/sigtramp.c: Likewise.
	* sysdeps/unix/bsd/sun/sparc/bits/sigcontext.h: Likewise.
	* sysdeps/unix/bsd/sun/sunos4/mmap.c: Likewise.
	* sysdeps/unix/bsd/sun/sunos4/speed.c: Likewise.
	* sysdeps/unix/bsd/ultrix4/sysconf.c: Likewise.
	* sysdeps/unix/bsd/ultrix4/bits/posix_opt.h: Likewise.
	* sysdeps/unix/bsd/ultrix4/mips/bits/sigcontext.h: Likewise.
	* sysdeps/unix/bsd/vax/sysdep.h: Likewise.
	* sysdeps/unix/common/lxstat.c: Likewise.
	* sysdeps/unix/common/tcsendbrk.c: Likewise.
	* sysdeps/unix/common/bits/dirent.h: Likewise.
	* sysdeps/unix/i386/sysdep.h: Likewise.
	* sysdeps/unix/mips/sysdep.h: Likewise.
	* sysdeps/unix/sysv/setrlimit.c: Likewise.
	* sysdeps/unix/sysv/settimeofday.c: Likewise.
	* sysdeps/unix/sysv/sigaction.c: Likewise.
	* sysdeps/unix/sysv/sysv_termio.h: Likewise.
	* sysdeps/unix/sysv/tcdrain.c: Likewise.
	* sysdeps/unix/sysv/tcflow.c: Likewise.
	* sysdeps/unix/sysv/tcflush.c: Likewise.
	* sysdeps/unix/sysv/tcgetattr.c: Likewise.
	* sysdeps/unix/sysv/tcsendbrk.c: Likewise.
	* sysdeps/unix/sysv/tcsetattr.c: Likewise.
	* sysdeps/unix/sysv/bits/dirent.h: Likewise.
	* sysdeps/unix/sysv/irix4/getpriority.c: Likewise.
	* sysdeps/unix/sysv/irix4/setpriority.c: Likewise.
	* sysdeps/unix/sysv/irix4/bits/confname.h: Likewise.
	* sysdeps/unix/sysv/linux/adjtime.c: Likewise.
	* sysdeps/unix/sysv/linux/dl-sysdep.c: Likewise.
	* sysdeps/unix/sysv/linux/gethostname.c: Likewise.
	* sysdeps/unix/sysv/linux/if_index.c: Likewise.
	* sysdeps/unix/sysv/linux/ptrace.c: Likewise.
	* sysdeps/unix/sysv/linux/reboot.c: Likewise.
	* sysdeps/unix/sysv/linux/speed.c: Likewise.
	* sysdeps/unix/sysv/linux/sysctl.c: Likewise.
	* sysdeps/unix/sysv/linux/tcdrain.c: Likewise.
	* sysdeps/unix/sysv/linux/ulimit.c: Likewise.
	* sysdeps/unix/sysv/linux/waitpid.c: Likewise.
	* sysdeps/unix/sysv/linux/alpha/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/signum.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/profil-counter.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/sysdep.h: Likewise.
	* sysdeps/unix/sysv/minix/bits/sigaction.h: Likewise.
	* sysdeps/unix/sysv/sco3.2.4/bits/confname.h: Likewise.
	* sysdeps/unix/sysv/sco3.2.4/bits/sigaction.h: Likewise.
	* sysdeps/unix/sysv/sysv4/sigaction.c: Likewise.
	* sysdeps/unix/sysv/sysv4/siginfo.h: Likewise.
	* sysdeps/unix/sysv/sysv4/sysconf.c: Likewise.
	* sysdeps/unix/sysv/sysv4/sysconfig.h: Likewise.
	* sysdeps/unix/sysv/sysv4/waitpid.c: Likewise.
	* sysdeps/unix/sysv/sysv4/bits/sigaction.h: Likewise.
	* sysdeps/unix/sysv/sysv4/i386/sysdep.h: Likewise.
	* sysdeps/unix/sysv/sysv4/solaris2/sparc/sysdep.h: Likewise.
	* sysdeps/vax/fl.h: Likewise.
	* sysdeps/vax/setjmp.c: Likewise.

1997-06-21 16:58  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* stdlib/strtod.c (INTERNAL (STRTOF)): Fix recognition of Infinity
	and NaN strings.

1997-06-20 21:52  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/m68k/fpu/bits/mathinline.h (__scalbn): Fix type of second
	argument.
	(__ilogb): Remove special case for zero, add stupid special case
	for NaN.
	(__ieee754_scalb): Remove definition.
	* sysdeps/m68k/fpu/mathbits.h (FP_ILOGB0, FP_ILOGBNAN): Define.
	* sysdeps/m68k/fpu/s_scalbn.c: Fix type of second argument.

	* sysdeps/m68k/fpu/e_scalb.c: Rewritten.
	* sysdeps/m68k/fpu/e_scalbf.c: Adapted.
	* sysdeps/m68k/fpu/e_scalbl.c: Adapted.

	* sysdeps/libm-ieee754/e_scalb.c: Raise no exceptions when
	returning NaN.  Handle zero specially.
	* sysdeps/libm-ieee754/e_scalbf.c: Likewise.
	* sysdeps/libm-ieee754/e_scalbl.c: Likewise.

	* math/libm-test.c (ilogb_test): Don't require exceptions for zero
	and NaN.
	(gamma_test): Use different argument when checking whether
	function is implemented.
	(scalb_test): Remove duplicate tests.

1997-06-03 15:59  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makerules (+depfiles): Add dependencies for $(test-srcs).
	(distinfo-vars): Add test-srcs.
1997-06-23 21:55:26 +00:00

378 lines
8.8 KiB
C

/* Copyright (C) 1991, 1993, 1995, 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Torbjorn Granlund (tege@sics.se).
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#undef __ptr_t
#if defined (__cplusplus) || (defined (__STDC__) && __STDC__)
#define __ptr_t void *
#else /* Not C++ or ANSI C. */
#undef const
#define const
#define __ptr_t char *
#endif /* C++ or ANSI C. */
#if defined (HAVE_STRING_H) || defined (_LIBC)
#include <string.h>
#endif
#ifdef _LIBC
#include <memcopy.h>
#else /* Not in the GNU C library. */
#include <sys/types.h>
/* Type to use for aligned memory operations.
This should normally be the biggest type supported by a single load
and store. Must be an unsigned type. */
#define op_t unsigned long int
#define OPSIZ (sizeof(op_t))
/* Threshold value for when to enter the unrolled loops. */
#define OP_T_THRES 16
/* Type to use for unaligned operations. */
typedef unsigned char byte;
#ifndef WORDS_BIGENDIAN
#define MERGE(w0, sh_1, w1, sh_2) (((w0) >> (sh_1)) | ((w1) << (sh_2)))
#else
#define MERGE(w0, sh_1, w1, sh_2) (((w0) << (sh_1)) | ((w1) >> (sh_2)))
#endif
#endif /* In the GNU C library. */
#ifdef WORDS_BIGENDIAN
#define CMP_LT_OR_GT(a, b) ((a) > (b) ? 1 : -1)
#else
#define CMP_LT_OR_GT(a, b) memcmp_bytes ((a), (b))
#endif
/* BE VERY CAREFUL IF YOU CHANGE THIS CODE! */
/* The strategy of this memcmp is:
1. Compare bytes until one of the block pointers is aligned.
2. Compare using memcmp_common_alignment or
memcmp_not_common_alignment, regarding the alignment of the other
block after the initial byte operations. The maximum number of
full words (of type op_t) are compared in this way.
3. Compare the few remaining bytes. */
#ifndef WORDS_BIGENDIAN
/* memcmp_bytes -- Compare A and B bytewise in the byte order of the machine.
A and B are known to be different.
This is needed only on little-endian machines. */
static int memcmp_bytes __P((op_t, op_t));
#ifdef __GNUC__
__inline
#endif
static int
memcmp_bytes (a, b)
op_t a, b;
{
long int srcp1 = (long int) &a;
long int srcp2 = (long int) &b;
op_t a0, b0;
do
{
a0 = ((byte *) srcp1)[0];
b0 = ((byte *) srcp2)[0];
srcp1 += 1;
srcp2 += 1;
}
while (a0 == b0);
return a0 - b0;
}
#endif
static int memcmp_common_alignment __P((long, long, size_t));
/* memcmp_common_alignment -- Compare blocks at SRCP1 and SRCP2 with LEN `op_t'
objects (not LEN bytes!). Both SRCP1 and SRCP2 should be aligned for
memory operations on `op_t's. */
#ifdef __GNUC__
__inline
#endif
static int
memcmp_common_alignment (srcp1, srcp2, len)
long int srcp1;
long int srcp2;
size_t len;
{
op_t a0, a1;
op_t b0, b1;
switch (len % 4)
{
case 2:
a0 = ((op_t *) srcp1)[0];
b0 = ((op_t *) srcp2)[0];
srcp1 -= 2 * OPSIZ;
srcp2 -= 2 * OPSIZ;
len += 2;
goto do1;
case 3:
a1 = ((op_t *) srcp1)[0];
b1 = ((op_t *) srcp2)[0];
srcp1 -= OPSIZ;
srcp2 -= OPSIZ;
len += 1;
goto do2;
case 0:
if (OP_T_THRES <= 3 * OPSIZ && len == 0)
return 0;
a0 = ((op_t *) srcp1)[0];
b0 = ((op_t *) srcp2)[0];
goto do3;
case 1:
a1 = ((op_t *) srcp1)[0];
b1 = ((op_t *) srcp2)[0];
srcp1 += OPSIZ;
srcp2 += OPSIZ;
len -= 1;
if (OP_T_THRES <= 3 * OPSIZ && len == 0)
goto do0;
/* Fall through. */
}
do
{
a0 = ((op_t *) srcp1)[0];
b0 = ((op_t *) srcp2)[0];
if (a1 != b1)
return CMP_LT_OR_GT (a1, b1);
do3:
a1 = ((op_t *) srcp1)[1];
b1 = ((op_t *) srcp2)[1];
if (a0 != b0)
return CMP_LT_OR_GT (a0, b0);
do2:
a0 = ((op_t *) srcp1)[2];
b0 = ((op_t *) srcp2)[2];
if (a1 != b1)
return CMP_LT_OR_GT (a1, b1);
do1:
a1 = ((op_t *) srcp1)[3];
b1 = ((op_t *) srcp2)[3];
if (a0 != b0)
return CMP_LT_OR_GT (a0, b0);
srcp1 += 4 * OPSIZ;
srcp2 += 4 * OPSIZ;
len -= 4;
}
while (len != 0);
/* This is the right position for do0. Please don't move
it into the loop. */
do0:
if (a1 != b1)
return CMP_LT_OR_GT (a1, b1);
return 0;
}
static int memcmp_not_common_alignment __P((long, long, size_t));
/* memcmp_not_common_alignment -- Compare blocks at SRCP1 and SRCP2 with LEN
`op_t' objects (not LEN bytes!). SRCP2 should be aligned for memory
operations on `op_t', but SRCP1 *should be unaligned*. */
#ifdef __GNUC__
__inline
#endif
static int
memcmp_not_common_alignment (srcp1, srcp2, len)
long int srcp1;
long int srcp2;
size_t len;
{
op_t a0, a1, a2, a3;
op_t b0, b1, b2, b3;
op_t x;
int shl, shr;
/* Calculate how to shift a word read at the memory operation
aligned srcp1 to make it aligned for comparison. */
shl = 8 * (srcp1 % OPSIZ);
shr = 8 * OPSIZ - shl;
/* Make SRCP1 aligned by rounding it down to the beginning of the `op_t'
it points in the middle of. */
srcp1 &= -OPSIZ;
switch (len % 4)
{
case 2:
a1 = ((op_t *) srcp1)[0];
a2 = ((op_t *) srcp1)[1];
b2 = ((op_t *) srcp2)[0];
srcp1 -= 1 * OPSIZ;
srcp2 -= 2 * OPSIZ;
len += 2;
goto do1;
case 3:
a0 = ((op_t *) srcp1)[0];
a1 = ((op_t *) srcp1)[1];
b1 = ((op_t *) srcp2)[0];
srcp2 -= 1 * OPSIZ;
len += 1;
goto do2;
case 0:
if (OP_T_THRES <= 3 * OPSIZ && len == 0)
return 0;
a3 = ((op_t *) srcp1)[0];
a0 = ((op_t *) srcp1)[1];
b0 = ((op_t *) srcp2)[0];
srcp1 += 1 * OPSIZ;
goto do3;
case 1:
a2 = ((op_t *) srcp1)[0];
a3 = ((op_t *) srcp1)[1];
b3 = ((op_t *) srcp2)[0];
srcp1 += 2 * OPSIZ;
srcp2 += 1 * OPSIZ;
len -= 1;
if (OP_T_THRES <= 3 * OPSIZ && len == 0)
goto do0;
/* Fall through. */
}
do
{
a0 = ((op_t *) srcp1)[0];
b0 = ((op_t *) srcp2)[0];
x = MERGE(a2, shl, a3, shr);
if (x != b3)
return CMP_LT_OR_GT (x, b3);
do3:
a1 = ((op_t *) srcp1)[1];
b1 = ((op_t *) srcp2)[1];
x = MERGE(a3, shl, a0, shr);
if (x != b0)
return CMP_LT_OR_GT (x, b0);
do2:
a2 = ((op_t *) srcp1)[2];
b2 = ((op_t *) srcp2)[2];
x = MERGE(a0, shl, a1, shr);
if (x != b1)
return CMP_LT_OR_GT (x, b1);
do1:
a3 = ((op_t *) srcp1)[3];
b3 = ((op_t *) srcp2)[3];
x = MERGE(a1, shl, a2, shr);
if (x != b2)
return CMP_LT_OR_GT (x, b2);
srcp1 += 4 * OPSIZ;
srcp2 += 4 * OPSIZ;
len -= 4;
}
while (len != 0);
/* This is the right position for do0. Please don't move
it into the loop. */
do0:
x = MERGE(a2, shl, a3, shr);
if (x != b3)
return CMP_LT_OR_GT (x, b3);
return 0;
}
int
memcmp (s1, s2, len)
const __ptr_t s1;
const __ptr_t s2;
size_t len;
{
op_t a0;
op_t b0;
long int srcp1 = (long int) s1;
long int srcp2 = (long int) s2;
op_t res;
if (len >= OP_T_THRES)
{
/* There are at least some bytes to compare. No need to test
for LEN == 0 in this alignment loop. */
while (srcp2 % OPSIZ != 0)
{
a0 = ((byte *) srcp1)[0];
b0 = ((byte *) srcp2)[0];
srcp1 += 1;
srcp2 += 1;
res = a0 - b0;
if (res != 0)
return res;
len -= 1;
}
/* SRCP2 is now aligned for memory operations on `op_t'.
SRCP1 alignment determines if we can do a simple,
aligned compare or need to shuffle bits. */
if (srcp1 % OPSIZ == 0)
res = memcmp_common_alignment (srcp1, srcp2, len / OPSIZ);
else
res = memcmp_not_common_alignment (srcp1, srcp2, len / OPSIZ);
if (res != 0)
return res;
/* Number of bytes remaining in the interval [0..OPSIZ-1]. */
srcp1 += len & -OPSIZ;
srcp2 += len & -OPSIZ;
len %= OPSIZ;
}
/* There are just a few bytes to compare. Use byte memory operations. */
while (len != 0)
{
a0 = ((byte *) srcp1)[0];
b0 = ((byte *) srcp2)[0];
srcp1 += 1;
srcp2 += 1;
res = a0 - b0;
if (res != 0)
return res;
len -= 1;
}
return 0;
}
#ifdef weak_alias
#undef bcmp
weak_alias (memcmp, bcmp)
#endif