MALLOC(3) BSD Library Functions Manual MALLOC(3)NAME
malloc, — general memory allocation function
The malloc() function allocates uninitialized space for an object whose
size is specified by size. The malloc() function maintains multiple
lists of free blocks according to size, allocating space from the appro‐
The allocated space is suitably aligned (after possible pointer coercion)
for storage of any type of object. If the space is of pagesize or larger,
the memory returned will be page-aligned.
The malloc() function returns a pointer to the allocated space if suc‐
cessful; otherwise a null pointer is returned.
SEE ALSObrk(2), pagesize(2), free(3), calloc(3), alloca(3), realloc(3), memory(3)STANDARDS
The malloc() function conforms to ANSI X3.159-1989 (“ANSI C89”).
The current implementation of malloc does not always fail gracefully when
system memory limits are approached. It may fail to allocate memory when
larger free blocks could be broken up, or when limits are exceeded
because the size is rounded up. It is optimized for sizes that are pow‐
ers of two.
4th Berkeley Distribution June 4, 1993 4th Berkeley Distribution