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来自「Algorithms for Image Processing and Comp」· 代码 · 共 26 行

@c ----------------------------------------------------------------------
@node truncate, io
@heading @code{truncate}
@subheading Syntax

@example
#include <osfcn.h>

int truncate(const char *file, unsigned long size);
@end example

@subheading Description

This function truncates @var{file} to @var{size} bytes.

@subheading Return Value

Zero on success, nonzero on failure.

@subheading Example

@example
ftruncate("/tmp/data.txt", 400);
@end example