| /* xmemdup.c -- Duplicate a memory buffer, using xcalloc. |
| This trivial function is in the public domain. |
| Jeff Garzik, September 1999. */ |
| |
| /* |
| |
| @deftypefn Replacement void* xmemdup (void *@var{input}, size_t @var{copy_size}, size_t @var{alloc_size}) |
| |
| Duplicates a region of memory without fail. First, @var{alloc_size} bytes |
| are allocated, then @var{copy_size} bytes from @var{input} are copied into |
| it, and the new memory is returned. If fewer bytes are copied than were |
| allocated, the remaining memory is zeroed. |
| |
| @end deftypefn |
| |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| #include "ansidecl.h" |
| #include "libiberty.h" |
| |
| #include <sys/types.h> /* For size_t. */ |
| #ifdef HAVE_STRING_H |
| #include <string.h> |
| #endif |
| |
| PTR |
| xmemdup (input, copy_size, alloc_size) |
| const PTR input; |
| size_t copy_size; |
| size_t alloc_size; |
| { |
| PTR output = xcalloc (1, alloc_size); |
| memcpy (output, input, copy_size); |
| return output; |
| } |