NAME

malloc, free, realloc, calloc, alloca — general memory allocation operations

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include <stdlib.h>

void *
malloc(size_t size);

void
free(void *ptr);

void *
realloc(void *ptr, size_t size);

void *
calloc(size_t nelem, size_t elsize);

void *
alloca(size_t size);

DESCRIPTION

These functions allocate and free memory for the calling process. They are described in the individual manual pages. The memory allocators used in the kernel are described in memoryallocators(9).

SEE ALSO

alloca(3), calloc(3), free(3), malloc(3), realloc(3)

STANDARDS

These functions, with the exception of alloca() conform to ANSI X3.159-1989 (“ANSI C89”).