From e852e889444a8bf27f3e5075d064e9922b38e7e2 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Tue, 28 Jul 1998 16:26:04 +0000 Subject: Update. 1998-07-28 Ulrich Drepper * math/libm-test.c (tgamma_test): Remove redundant tests. 1998-07-28 16:20 Ulrich Drepper * sysdeps/generic/glob.c: Correct problems with */foo and GLOB_NOCHECK where foo does not exist in any of the subdirectories. Reported by Paul D. Smith . * posix/globtest.sh: Add test for this bug. 1998-07-28 Mark Kettenis * io/sys/statfs.h: Fix typos. * io/sys/statvfs.h: Fix typos. 1998-07-28 Ulrich Drepper * version.h (VERSION): Bump to 2.0.95. * math/Makefile (libm-calls): Remove w_gamma, add w_tgamma. * math/Versions [GLIBC_2.1]: Add tgamma, tgammaf, and tgammal. * math/libm-test.c: Split old gamma_test and move half of it in new function tgamma_test. * math/bits/mathcalls.h: Add declaration of tgamma. * sysdeps/libm-ieee754/k_standard.c: Change gamma errors into tgamma errors. * sysdeps/libm-ieee754/w_gamma.c: Remove lgamma compatibility code and rename to ... * sysdeps/libm-ieee754/w_tgamma.c: ... this. New file. * sysdeps/libm-ieee754/w_gammaf.c: Remove lgammaf compatibility code and rename to ... * sysdeps/libm-ieee754/w_tgammaf.c: ... this. New file. * sysdeps/libm-ieee754/w_gammal.c: Remove lgammal compatibility code and rename to ... * sysdeps/libm-ieee754/w_tgammal.c: ... this. New file. * sysdeps/libm-ieee754/w_lgamma.c: Add gamma as weak alias. * sysdeps/libm-ieee754/w_lgammaf.c: Likewise. * sysdeps/libm-ieee754/w_lgammal.c: Likewise. * stgdio-common/printf-parse.h: Implement handling of j, t, and z modifiers. * stdio-common/vfprintf.c: Likewise. * stdio-common/vfscanf.c: Likewise. * manual/stdio.texi: Document new printf/scanf modifiers. * sysdeps/unix/sysv/linux/recvmsg.c: Remove alias __recvmsg. * sysdeps/unix/sysv/linux/sendmsg.c: Remove alias __sendmsg. 1998-07-28 Thorsten Kukuk * sunrpc/Makefile (routines): Add clnt_unix and svc_unix. * sunrpc/Versions: Add new *unix_create functions. * sunrpc/clnt_gen.c: Add support for RPC over AF_UNIX. * sunrpc/clnt_unix.c: New, client side of RPC over AF_UNIX. * sunrpc/key_call.c: Use RPC over AF_UNIX for communication with keyserv daemon. * sunrpc/rpc/clnt.h: Add AF_UNIX based RPC function prototypes. * sunrpc/rpc/svc.h: Likewise. * sunrpc/svc_authux.c: Copy internal auth flavor if none is given. * sunrpc/svc_tcp.c: Fix typos. * sunrpc/svc_unix.c: New, server side of AF_UNIX based RPC. * nis/Makefile: Remove currently not working cache functions. * nis/Versions: Add __nisbind_* functions for rpc.nisd. * nis/nis_call.c: Rewrite binding to a NIS+ server to reuse CLIENT handles. * nis/nis_file.c: Fix memory leaks. * nis/nis_intern.h: Move internal structs from here ... * nis/rpcsvc/nislib.h: ... to here for NIS+ server and tools. * nis/nis_lookup.c: Try at first if last client handle works. * nis/nis_table.c: Likewise. * nis/nis_checkpoint.c: Adjust __do_niscall2 parameters. * nis/nis_mkdir.c: Likewise. * nis/nis_ping.c: Likewise. * nis/nis_rmdir.c: Likewise. * nis/nis_server.c: Likewise. * nis/nis_util.c: Likewise. * nis/nis_findserv.c (__nis_findfastest): Little optimization. 1998-07-28 Andreas Jaeger * stdlib/strtol.c (STRTOL_LONG_MAX): Correct typo in last patch - define as LONG_MAX. 1998-07-28 09:31 Ulrich Drepper * nscd/connections.c (gr_send_answer): Deal with missing UIO_MAXIOV. Correct test whether writev send all data. * nscd/nscd_getgr_r.c (__nscd_getgr_r): Correct test whether readv received all data. 1998-07-28 Mark Kettenis * nscd/nscd_getgr_r.c (__nscd_getgr_r): Deal with missing UIO_MAXIOV. 1998-07-28 Mark Kettenis * sysdeps/mach/hurd/dl-sysdep.c (open_file): Change assert call to allow mode to be 0. (__xstat): New function. (__fxstat): New function. (_dl_sysdep_read_whole_file): Removed. The implementation in `elf/dl-misc.c' now also works for the Hurd. --- manual/math.texi | 29 +++++++++++++++++++++++++---- manual/stdio.texi | 38 ++++++++++++++++++++++++++++++++++++-- 2 files changed, 61 insertions(+), 6 deletions(-) (limited to 'manual') diff --git a/manual/math.texi b/manual/math.texi index 4386c2f..e1d597d 100644 --- a/manual/math.texi +++ b/manual/math.texi @@ -857,7 +857,8 @@ The sign of the gamma function is stored in the global variable the intermediate result was positive or zero, and, @code{-1} if it was negative. -You can compute the actual gamma function as follows: +To compute the real gamma function you can use the @code{tgamma} +function or you can compute the values as follows: @smallexample lgam = lgamma(x); gam = signgam*exp(lgam); @@ -878,15 +879,35 @@ the intermediate result in the variable pointed to by @var{signp} instead of in the @var{signgam} global. @end deftypefun -@ignore @comment math.h @comment SVID @deftypefun double gamma (double @var{x}) @deftypefunx float gammaf (float @var{x}) @deftypefunx {long double} gammal (long double @var{x}) -??? _not_ exp(lgamma())*signgam - historical? +These functions exist for compatibility reasons. They are equivalent to +@code{lgamma} etc. It is better to use @code{lgamma} since for one the +name reflect better the actual computation and @code{lgamma} is also +standardized in @w{ISO C 9x} while @code{gamma} is not. +@end deftypefun + +@comment math.h +@comment XPG +@deftypefun double tgamma (double @var{x}) +@deftypefunx float tgammaf (float @var{x}) +@deftypefunx {long double} tgammal (long double @var{x}) +@code{tgamma} applies the gamma function to @var{x}. The gamma +function is defined as +@tex +$$\Gamma(x) = \int_0^\infty t^{x-1} e^{-t} \hbox{d}t$$ +@end tex +@ifnottex +@smallexample +gamma (x) = integral from 0 to @infinity{} of t^(x-1) e^-t dt +@end smallexample +@end ifnottex + +This function was introduced in @w{ISO C 9x}. @end deftypefun -@end ignore @comment math.h @comment SVID diff --git a/manual/stdio.texi b/manual/stdio.texi index c930471..531717c 100644 --- a/manual/stdio.texi +++ b/manual/stdio.texi @@ -1190,6 +1190,8 @@ char}, as appropriate. A @code{char} argument is converted to an anyway, but the @samp{h} modifier says to convert it back to a @code{char} again. +This modifier was introduced in @w{ISO C 9x}. + @item h Specifies that the argument is a @code{short int} or @code{unsigned short int}, as appropriate. A @code{short} argument is converted to an @@ -1197,6 +1199,12 @@ short int}, as appropriate. A @code{short} argument is converted to an anyway, but the @samp{h} modifier says to convert it back to a @code{short} again. +@item j +Specifies that the argument is a @code{intmax_t} or @code{uintmax_t}, as +appropriate. + +This modifier was introduced in @w{ISO C 9x}. + @item l Specifies that the argument is a @code{long int} or @code{unsigned long int}, as appropriate. Two @samp{l} characters is like the @samp{L} @@ -1213,8 +1221,17 @@ The @samp{q} modifier is another name for the same thing, which comes from 4.4 BSD; a @w{@code{long long int}} is sometimes called a ``quad'' @code{int}. -@item Z -Specifies that the argument is a @code{size_t}. This is a GNU extension. +@item t +Specifies that the argument is a @code{ptrdiff_t}. + +This modifier was introduced in @w{ISO C 9x}. + +@item z +@itemx Z +Specifies that the argument is a @code{size_t}. + +@samp{z} was introduced in @w{ISO C 9x}. @samp{Z} is a GNU extension +predating this addition and should not be used anymore in new code. @end table Here is an example. Using the template string: @@ -2653,10 +2670,17 @@ specify other sizes of integer: Specifies that the argument is a @code{signed char *} or @code{unsigned char *}. +This modifier was introduced in @w{ISO C 9x}. + @item h Specifies that the argument is a @code{short int *} or @code{unsigned short int *}. +@item j +Specifies that the argument is a @code{intmax_t *} or @code{uintmax_t *}. + +This modifier was introduced in @w{ISO C 9x}. + @item l Specifies that the argument is a @code{long int *} or @code{unsigned long int *}. Two @samp{l} characters is like the @samp{L} modifier, below. @@ -2672,6 +2696,16 @@ is the same as @code{long int}.) The @samp{q} modifier is another name for the same thing, which comes from 4.4 BSD; a @w{@code{long long int}} is sometimes called a ``quad'' @code{int}. + +@item t +Specifies that the argument is a @code{ptrdiff_t *}. + +This modifier was introduced in @w{ISO C 9x}. + +@item z +Specifies that the argument is a @code{size_t *}. + +This modifier was introduced in @w{ISO C 9x}. @end table All of the @samp{%e}, @samp{%f}, @samp{%g}, @samp{%E}, and @samp{%G} -- cgit v1.1