xr

来自「Algorithms for Image Processing and Comp」· 代码 · 共 28 行

@c ----------------------------------------------------------------------
@node xrealloc, memory
@heading @code{xrealloc}
@subheading Syntax

@example
void *xrealloc(void *ptr, size_t size);
@end example

@subheading Description

This function is just like @code{realloc} (@pxref{realloc}), except that
if there is no more memory, it prints an error message and exits.  It
can also properly handle @var{ptr} being @code{NULL}. 

@subheading Return Value

A pointer to a possibly new block.

@subheading Example

@example
char *buf;
buf = (char *)xrealloc(buf, new_size);
@end example