STDLIB(3) Library Functions Manual STDLIB(3)
NAME
stdlibstandard library definitions
SYNOPSIS
#include <stdlib.h>
DESCRIPTION
The <stdlib.h> header defines the following types and macros:
1.
NULL - an implementation-defined null pointer constant;
2.
size_t and wchar_t - integer types described in stddef(3);
3.
div_t, ldiv_t, and lldiv_t - structures that are returned by the div(3), ldiv(3), and lldiv(3) functions, respectively;
4.
RAND_MAX - a macro which expands to an integer constant that is the maximum value returned by the rand(3) function;
5.
MB_CUR_MAX - an integer expression of type size_t whose value is the maximum number of bytes in a character specified by the current locale; and
6.
EXIT_SUCCESS and EXIT_FAILURE - macros which expand to integer constants suitable for use as an argument to the exit(3) function.
 
The <stdlib.h> header also prototypes several important functions such as abort(3), atoi(3), bsearch(3), free(3), malloc(3), and strtol(3).
SEE ALSO
STANDARDS
As described here, the <stdlib.h> header conforms to ISO/IEC 9899:1999 (“ISO C99”) and IEEE Std 1003.1-2001 (“POSIX.1”).
HISTORY
In the current form the <stdlib.h> header was introduced in NetBSD 0.8.