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Annotation of OpenXM_contrib/gmp/printf/sprintffuns.c, Revision 1.1

1.1     ! ohara       1: /* __gmp_sprintf_funs -- support for gmp_sprintf and gmp_vsprintf.
        !             2:
        !             3:    THE FUNCTIONS IN THIS FILE ARE FOR INTERNAL USE ONLY.  THEY'RE ALMOST
        !             4:    CERTAIN TO BE SUBJECT TO INCOMPATIBLE CHANGES OR DISAPPEAR COMPLETELY IN
        !             5:    FUTURE GNU MP RELEASES.
        !             6:
        !             7: Copyright 2001 Free Software Foundation, Inc.
        !             8:
        !             9: This file is part of the GNU MP Library.
        !            10:
        !            11: The GNU MP Library is free software; you can redistribute it and/or modify
        !            12: it under the terms of the GNU Lesser General Public License as published by
        !            13: the Free Software Foundation; either version 2.1 of the License, or (at your
        !            14: option) any later version.
        !            15:
        !            16: The GNU MP Library is distributed in the hope that it will be useful, but
        !            17: WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
        !            18: or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
        !            19: License for more details.
        !            20:
        !            21: You should have received a copy of the GNU Lesser General Public License
        !            22: along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
        !            23: the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
        !            24: MA 02111-1307, USA. */
        !            25:
        !            26: #include "config.h"
        !            27:
        !            28: #if HAVE_STDARG
        !            29: #include <stdarg.h>
        !            30: #else
        !            31: #include <varargs.h>
        !            32: #endif
        !            33:
        !            34: #include <stdio.h>
        !            35: #include <stdlib.h>
        !            36: #include <string.h>
        !            37:
        !            38: #include "gmp.h"
        !            39: #include "gmp-impl.h"
        !            40:
        !            41:
        !            42: /* The data parameter "bufp" points to a "char *buf" which is the next
        !            43:    character to be written, having started as the destination from the
        !            44:    application.  This is then increased each time output is produced.  */
        !            45:
        !            46:
        !            47: /* If vsprintf returns -1 then pass it upwards.  It doesn't matter that
        !            48:    "*bufp" is ruined in this case, since gmp_doprint will bail out
        !            49:    immediately anyway.  */
        !            50: static int
        !            51: gmp_sprintf_format (char **bufp, const char *fmt, va_list ap)
        !            52: {
        !            53:   char  *buf = *bufp;
        !            54:   int   ret;
        !            55:   vsprintf (buf, fmt, ap);
        !            56:   ret = strlen (buf);
        !            57:   *bufp = buf + ret;
        !            58:   return ret;
        !            59: }
        !            60:
        !            61: static int
        !            62: gmp_sprintf_memory (char **bufp, const char *str, size_t len)
        !            63: {
        !            64:   char  *buf = *bufp;
        !            65:   *bufp = buf + len;
        !            66:   memcpy (buf, str, len);
        !            67:   return len;
        !            68: }
        !            69:
        !            70: static int
        !            71: gmp_sprintf_reps (char **bufp, int c, int reps)
        !            72: {
        !            73:   char  *buf = *bufp;
        !            74:   ASSERT (reps >= 0);
        !            75:   *bufp = buf + reps;
        !            76:   memset (buf, c, reps);
        !            77:   return reps;
        !            78: }
        !            79:
        !            80: static int
        !            81: gmp_sprintf_final (char **bufp, int c, int reps)
        !            82: {
        !            83:   char  *buf = *bufp;
        !            84:   *buf = '\0';
        !            85:   return 0;
        !            86: }
        !            87:
        !            88: const struct doprnt_funs_t  __gmp_sprintf_funs = {
        !            89:   (doprnt_format_t) gmp_sprintf_format,
        !            90:   (doprnt_memory_t) gmp_sprintf_memory,
        !            91:   (doprnt_reps_t)   gmp_sprintf_reps,
        !            92:   (doprnt_final_t)  gmp_sprintf_final
        !            93: };