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Annotation of OpenXM_contrib/gmp/printf/printffuns.c, Revision 1.1.1.1

1.1       ohara       1: /* __gmp_fprintf_funs -- support for formatted output to FILEs.
                      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 <string.h>
                     36:
                     37: #include "gmp.h"
                     38: #include "gmp-impl.h"
                     39:
                     40: /* SunOS 4 stdio.h doesn't provide a prototype for this */
                     41: #if ! HAVE_DECL_VFPRINTF
                     42: int vfprintf _PROTO ((FILE *fp, const char *fmt, va_list ap));
                     43: #endif
                     44:
                     45:
                     46: static int
                     47: gmp_fprintf_memory (FILE *fp, const char *str, size_t len)
                     48: {
                     49:   return fwrite (str, 1, len, fp);
                     50: }
                     51:
                     52: /* glibc putc is a function, at least when it's in multi-threaded mode or
                     53:    some such, so fwrite chunks instead of making many calls. */
                     54: static int
                     55: gmp_fprintf_reps (FILE *fp, int c, int reps)
                     56: {
                     57:   char  buf[256];
                     58:   int   i, piece, ret;
                     59:   ASSERT (reps >= 0);
                     60:
                     61:   memset (buf, c, MIN (reps, sizeof (buf)));
                     62:   for (i = reps; i > 0; i -= sizeof (buf))
                     63:     {
                     64:       piece = MIN (i, sizeof (buf));
                     65:       ret = fwrite (buf, 1, piece, fp);
                     66:       if (ret == -1)
                     67:         return ret;
                     68:       ASSERT (ret == piece);
                     69:     }
                     70:
                     71:   return reps;
                     72: }
                     73:
                     74: const struct doprnt_funs_t  __gmp_fprintf_funs = {
                     75:   (doprnt_format_t) vfprintf,
                     76:   (doprnt_memory_t) gmp_fprintf_memory,
                     77:   (doprnt_reps_t)   gmp_fprintf_reps,
                     78: };