Interface

#include <codecogs/io/binary/file_length.h>

using namespace IO::Binary;

long

fileLength (FILE* stream) Calculates the length of a binary file.

---

Function Documentation

Returns the length of a file in bytes. Useful when you need to dynamically allocate memory to hold the contents of a file you intend to read. This function was designed to replicated the similarly named filelength function that comes with some distributions of C/C++, particularly on DOS platforms. There doesn't appear to be an equivalent in Unix.

Example:

#include <stdio.h>
#include <codecogs/io/binary/file_length.h>
 
using namespace IO::Binary;
 
int main ()
{
  FILE* stream = fopen("/codecogs/io/binary/file_length.h","rb");
  printf("\n File length=%d", fileLength(stream));
  fclose(stream);
 
  return 0;
}

Parameters:

stream

A pointer to the file stream

Returns:

The length of the file in bytes. Return -1 if an error is encountered.

Authors:

Will Bateman (March 2005)

Source Code:

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