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author | Roland McGrath <roland@gnu.org> | 1995-09-17 20:23:15 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 1995-09-17 20:23:15 +0000 |
commit | 60478656fad8d8a487e9bc52d025f69767c3262b (patch) | |
tree | 0ae0836023f1c2f80064e7611f91d19c482208d9 /misc/efgcvt_r.c | |
parent | 9fd18b6c1b397e1af82a0b544f10f946c73864b6 (diff) | |
download | glibc-60478656fad8d8a487e9bc52d025f69767c3262b.tar.gz glibc-60478656fad8d8a487e9bc52d025f69767c3262b.tar.xz glibc-60478656fad8d8a487e9bc52d025f69767c3262b.zip |
Sat Sep 16 17:47:19 1995 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>
* elf/elf.h (AT_GID): Fix typo: Read -> Real. * misc/efgvt_r.c: New file. Reentrant version of [efg]cvt functions. * misc/efgcvt.c: Rewrite to use reentrant functions. * misc/hsearch_r.c: New file. Reentrant version of functions from hsearch family. * misc/hsearch.c, misc/tsearch.c: New files. * misc/Makefile (routines): Add efgcvt_r, hsearch_r, hsearch, tsearch. * posix/unistd.h (ttyname_r): Add prototype for new function. * stdlib/drand48_r.c, stdlib/erand48_r.c, stdlib/jrand48_r.c, stdlib/lrand48_r.c, stdlib/mrand48_r.c, stdlib/nrand48_r.c, stdlib/seed48_r.c, stdlib/srand48_r.c, stdlib/lcong48_r.c, stdlib/drand48-iter.c: New files implementing reentrant versions of functions from drand48 family. * stdlib/seed48.c, stdlib/drand48.c, stdlib/erand48.c, stdlib/jrand48.c, stdlib/lrand48.c, stdlib/mrand48.c, stdlib/nrand48.c, stdlib/srand48.c, stdlib/lcong48.c: Rewrite to use reentrant versions. * stdlib/a64l.c, stdlib/l64a.c: New files. Implement a64l() and l64a() functions from SysV library. * stdlib/Makefile (routines): Add drand48_r, erand48_r, lrand48_r, nrand48_r, mrand48_r, jrand48_r, srand48_r, seed48_r, lcong48_r, drand48-iter, a64l, l64a. * stdlib/stdlib.h: Declare them. * stdlib/random_r.c: New file. Reentrant version of functions from random family. * stdlib/stdlib.h: Declare them. * stdlib/random.c: Rewrite to use reentrant functions. * string/strerror_r.c: New file. Reentrant version. * string/strerror.c: Change for new _strerror_internal form. * string/Makefile (routines): Add strerror_r. * sysdeps/generic/dl-sysdep.c (_dl_sysdep_start): Set default value of user_entry to `_start'. Close AT_ENTRY case with `break'. * sysdeps/generic/strstr.c: New and much faster implementation by Stephen R. van den Berg. * sysdeps/generic/_strerror.c: _strerror_internal now takes three argument and has and explicit buffer length. * sysdeps/mach/_strerror.c: Change for new interface with three arguments. * stdio/perror.c, stdio/vfprintf.c: Callers changed. * sysdeps/mach/hurd/ttyname_r.c: New file. Reentrant version. * sysdeps/posix/ttyname_r.c: New file. Reentrant version. * sysdeps/stub/ttyname_r: New file. Define as dummy function. * sysdeps/posix/utimes.c: Include <utime.h> for prototype. (utimes): First parameter to utime must be file, not path. * sysdeps/posix/sysconf.c (__sysconf): Test for CLK_TCK in case _SC_CLK_TCK and return it when available. Test for STREAM_MAX in case _SC_STREAM_MAX and return it when available. Add case for _SC_2_LOCALEDEF which is now available. * posix/sys/types.h [__USE_SVID] (key_t): New type. * sysvipc/Makefile, sysvipc/ftok.c, sysvipc/sys/ipc.h, sysvipc/sys/msg.h, sysvipc/sys/sem.h, sysvipc/sys/shm.h, sysdeps/stub/sys/msq_buf.h, sysdeps/stub/sys/sem_buf.h, sysdeps/stub/sys/shm_buf.h, sysdeps/stub/sys/ipc_buf.h, sysdeps/stub/semctl.c, sysdeps/stub/semget.c, sysdeps/stub/semop.c, sysdeps/stub/shmat.c, sysdeps/stub/shmctl.c, sysdeps/stub/shmdt.c, sysdeps/stub/shmget.c, sysdeps/stub/msgctl.c, sysdeps/stub/msgget.c, sysdeps/stub/msgrcv.c, sysdeps/stub/msgsnd.c: New files. Add implementation of System V IPC.
Diffstat (limited to 'misc/efgcvt_r.c')
-rw-r--r-- | misc/efgcvt_r.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/misc/efgcvt_r.c b/misc/efgcvt_r.c new file mode 100644 index 0000000000..fb0d5917c2 --- /dev/null +++ b/misc/efgcvt_r.c @@ -0,0 +1,73 @@ +/* [efg]cvt -- compatibility functions for floating point formatting, + reentrent versions. +Copyright (C) 1995 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +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. */ + +#include <errno.h> +#include <stdio.h> +#include <string.h> +#include <ctype.h> +#include <math.h> + +int +fcvt_r (value, ndigit, decpt, sign, buf, len) + double value; + int ndigit, *decpt, *sign; + char *buf; + int len; +{ + int n, i; + + if (buf == NULL) + { + errno = EINVAL; + return -1; + } + + *sign = value < 0.0; + if (*sign) + value = - value; + + n = snprintf (buf, len, "%.*f", ndigit, value); + if (n < 0) + return -1; + + i = 0; + while (i < n && isdigit (buf[i])) + ++i; + *decpt = i; + do + ++i; + while (! isdigit (buf[i])); + memmove (&buf[i - *decpt], buf, n - (i - *decpt)); + + return 0; +} + +int +ecvt_r (value, ndigit, decpt, sign, buf, len) + double value; + int ndigit, *decpt, *sign; + char *buf; + int len; +{ + ndigit -= (int) floor (log10 (value)); + if (ndigit < 0) + ndigit = 0; + return fcvt_r (value, ndigit, decpt, sign, buf, len); +} |