FreeNOS
malloc.cpp
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1 /*
2  * Copyright (C) 2009 Niek Linnenbank
3  *
4  * This program is free software: you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation, either version 3 of the License, or
7  * (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program. If not, see <http://www.gnu.org/licenses/>.
16  */
17 
18 #include <sys/types.h>
19 #include "stdlib.h"
20 #include "errno.h"
21 
22 extern C void * malloc(size_t size)
23 {
24  void *buf = new char[size];
25  if (buf == 0)
26  {
27  errno = ENOMEM;
28  }
29 
30  return buf;
31 }
errno
C int errno
The lvalue errno is used by many functions to return error values.
types.h
malloc
C void * malloc(size_t size)
A memory allocator.
Definition: malloc.cpp:22
ENOMEM
#define ENOMEM
Not enough space.
Definition: errno.h:190
C
#define C
Used to define external C functions.
Definition: Macros.h:134
stdlib.h
errno.h