chiark / gitweb /
Fix include error, pointed out by Chris Rutter.
[mLib] / alloc.c
CommitLineData
0875b58f 1/* -*-c-*-
2 *
0bd98442 3 * $Id: alloc.c,v 1.3 1999/05/06 19:51:35 mdw Exp $
0875b58f 4 *
5 * Memory allocation functions
6 *
7 * (c) 1998 Straylight/Edgeware
8 */
9
c846879c 10/*----- Licensing notice --------------------------------------------------*
0875b58f 11 *
12 * This file is part of the mLib utilities library.
13 *
14 * mLib is free software; you can redistribute it and/or modify
c846879c 15 * it under the terms of the GNU Library General Public License as
16 * published by the Free Software Foundation; either version 2 of the
17 * License, or (at your option) any later version.
18 *
0875b58f 19 * mLib is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
c846879c 22 * GNU Library General Public License for more details.
23 *
24 * You should have received a copy of the GNU Library General Public
0bd98442 25 * License along with mLib; if not, write to the Free
26 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
27 * MA 02111-1307, USA.
0875b58f 28 */
29
30/*----- Revision history --------------------------------------------------*
31 *
32 * $Log: alloc.c,v $
0bd98442 33 * Revision 1.3 1999/05/06 19:51:35 mdw
34 * Reformatted the LGPL notice a little bit.
35 *
c846879c 36 * Revision 1.2 1999/05/05 18:50:31 mdw
37 * Change licensing conditions to LGPL.
38 *
39 * Revision 1.1.1.1 1998/06/17 23:44:42 mdw
40 * Initial version of mLib
0875b58f 41 *
42 */
43
44/*----- Header files ------------------------------------------------------*/
45
46/* --- ANSI headers --- */
47
48#include <stdio.h>
49#include <stdlib.h>
50#include <string.h>
51
52/* --- Local headers --- */
53
54#include "alloc.h"
55#include "exc.h"
56#include "track.h"
57
58/*----- Functions provided ------------------------------------------------*/
59
60/* --- @xmalloc@ --- *
61 *
62 * Arguments: @size_t sz@ = size of block to allocate
63 *
64 * Returns: Pointer to allocated block.
65 *
66 * Use: Allocates memory. If there's not enough memory, the
67 * exception @EXC_NOMEM@ is thrown.
68 */
69
70void *xmalloc(size_t sz)
71{
72 void *p = malloc(sz);
73 if (!p)
74 THROW(EXC_NOMEM);
75 return (p);
76}
77
78/* --- @xstrdup@ --- *
79 *
80 * Arguments: @const char *s@ = pointer to a string
81 *
82 * Returns: Pointer to a copy of the string.
83 *
84 * Use: Copies a string (like @strdup@ would, if it existed). If
85 * there's not enough memory, the exception @EXC_NOMEM@ is
86 * thrown.
87 */
88
89char *xstrdup(const char *s)
90{
91 size_t sz = strlen(s) + 1;
92 char *p = xmalloc(sz);
93 memcpy(p, s, sz);
94 return (p);
95}
96
97/* --- @xrealloc@ --- *
98 *
99 * Arguments: @void *p@ = pointer to a block of memory
100 * @size_t sz@ = new size desired for the block
101 *
102 * Returns: Pointer to the resized memory block (which is almost
103 * certainly not in the same place any more).
104 *
105 * Use: Resizes a memory block. If there's not enough memory, the
106 * exception @EXC_NOMEM@ is thrown.
107 */
108
109void *xrealloc(void *p, size_t sz)
110{
111 p = realloc(p, sz);
112 if (!p)
113 THROW(EXC_NOMEM);
114 return (p);
115}
116
117/*----- That's all, folks -------------------------------------------------*/