Query: memory
OS: osx
Section: 3
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
MEMORY(3) BSD Library Functions Manual MEMORY(3)NAMEalloca, calloc, free, malloc, mmap, realloc -- general memory allocation operationsLIBRARYStandard C Library (libc, -lc)SYNOPSIS#include <stdlib.h> void * alloca(size_t size); void * calloc(size_t nelem, size_t elsize); void free(void *ptr); void * malloc(size_t size); void * realloc(void *ptr, size_t size); #include <sys/mman.h> void * mmap(void * addr, size_t len, int prot, int flags, int fildes, off_t off);DESCRIPTIONThese functions allocate and free memory for the calling process. They are described in the individual manual pages.LEGACY SYNOPSIS#include <sys/types.h> #include <sys/mman.h> void * mmap(void * addr, size_t len, int prot, int flags, int fildes, off_t off); The include file <sys/types.h> is needed for this function.COMPATIBILITYmmap() now returns with errno set to EINVAL in places that historically succeeded. The rules have changed as follows: o The flags parameter must specify either MAP_PRIVATE or MAP_SHARED. o The size parameter must not be 0. o The off parameter must be a multiple of pagesize, as returned by sysconf().SEE ALSOmmap(2), alloca(3), calloc(3), free(3), malloc(3), realloc(3), compat(5)STANDARDSThese functions, with the exception of alloca() and mmap() conform to ISO/IEC 9899:1990 (``ISO C90'').BSDJune 4, 1993 BSD
Related Man Pages |
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memory(3) - mojave |
malloc(3) - minix |
calloc(3) - netbsd |
malloc(3) - netbsd |
memory(3) - osx |
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