linux man page for file_size_ex

file_size_ex(3alleg4)						  Allegro manual					     file_size_ex(3alleg4)

NAME
       file_size_ex - Returns the size of a file in bytes. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       uint64_t file_size_ex(const char *filename);

DESCRIPTION
       Returns the size of a file, in bytes. If the file does not exist or an error occurs, it will return zero and store the system error code in
       errno.

SEE ALSO
       file_exists(3alleg4), file_time(3alleg4), expackf(3alleg4)

Allegro 							   version 4.4.2					     file_size_ex(3alleg4)