1 /*
2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21  * DEALINGS IN THE SOFTWARE.
22  */
23 
24 #ifdef HAVE_CONFIG_H
25 #include <config.h>
26 #endif
27 
28 #include <sys/types.h>
29 #include <stdlib.h>
30 #include <X11/Xfuncproto.h>
31 
32 #ifndef HAVE_REALLOCARRAY
33 extern _X_HIDDEN void *xreallocarray(void *optr, size_t nmemb, size_t size);
34 # define reallocarray(ptr, n, size)	xreallocarray((ptr), (size_t)(n), (size_t)(size))
35 #endif
36 
37 #if defined(MALLOC_0_RETURNS_NULL) || defined(__clang_analyzer__)
38 # define Xreallocarray(ptr, n, size) \
39     reallocarray((ptr), ((n) == 0 ? 1 : (n)), size)
40 #else
41 # define Xreallocarray(ptr, n, size)	reallocarray((ptr), (n), (size))
42 #endif
43 
44 #define Xmallocarray(n, size)		Xreallocarray(NULL, (n), (size))
45