filelength

Syntax

#include <io.h>

long filelength(int fhandle);

Description

This function returns the size, in bytes, of a file whose handle is specified in the argument fhandle. To get the handle of a file opened by section fopen or section freopen, you can use section fileno macro.

Return Value

The size of the file in bytes, or (if any error occured) -1L and errno set to a value describing the cause of the failure.

Portability

not ANSI, not POSIX

Example

  printf("Size of file to which STDIN is redirected is %ld\n", 
          filelength(0));

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