ftell

Syntax

#include <stdio.h> long ftell(FILE *file);

Description

Returns the current file position for file. This is suitable for a future call to fseek.

Return Value

The file position, or -1 on error.

Portability

ANSI/ISO C	C89; C99
POSIX	1003.2-1992; 1003.1-2001

Example

long p = ftell(stdout);