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Annotation of GNUtools/bison/allocate.c, revision 1.1.1.1

1.1       root        1: /* Allocate and clear storage for bison,
                      2:    Copyright (C) 1984, 1989 Free Software Foundation, Inc.
                      3: 
                      4: This file is part of Bison, the GNU Compiler Compiler.
                      5: 
                      6: Bison is free software; you can redistribute it and/or modify
                      7: it under the terms of the GNU General Public License as published by
                      8: the Free Software Foundation; either version 2, or (at your option)
                      9: any later version.
                     10: 
                     11: Bison is distributed in the hope that it will be useful,
                     12: but WITHOUT ANY WARRANTY; without even the implied warranty of
                     13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     14: GNU General Public License for more details.
                     15: 
                     16: You should have received a copy of the GNU General Public License
                     17: along with Bison; see the file COPYING.  If not, write to
                     18: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
                     19: 
                     20: 
                     21: #include <stdio.h>
                     22: 
                     23: extern char *calloc ();
                     24: extern char *realloc ();
                     25: extern void done ();
                     26: 
                     27: extern char *program_name;
                     28: 
                     29: char *
                     30: xmalloc (n)
                     31:      register unsigned n;
                     32: {
                     33:   register char *block;
                     34: 
                     35:   /* Avoid uncertainty about what an arg of 0 will do.  */
                     36:   if (n == 0)
                     37:     n = 1;
                     38:   block = calloc (n, 1);
                     39:   if (block == NULL)
                     40:     {
                     41:       fprintf (stderr, "%s: memory exhausted\n", program_name);
                     42:       done (1);
                     43:     }
                     44: 
                     45:   return (block);
                     46: }
                     47: 
                     48: char *
                     49: xrealloc (block, n)
                     50:      register char *block;
                     51:      register unsigned n;
                     52: {
                     53:   /* Avoid uncertainty about what an arg of 0 will do.  */
                     54:   if (n == 0)
                     55:     n = 1;
                     56:   block = realloc (block, n);
                     57:   if (block == NULL)
                     58:     {
                     59:       fprintf (stderr, "%s: memory exhausted\n", program_name);
                     60:       done (1);
                     61:     }
                     62: 
                     63:   return (block);
                     64: }

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