man file_exists () - Tells if a file exists. Allegro game programming library.
NAME
file_exists - Tells if a file exists. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
int file_exists(const char *filename, int attrib, int *aret);
DESCRIPTION
Checks whether a file matching the given name and attributes (see beginning of this chapter) exists. If `aret' is not NULL, it will be set to the attributes of the matching file. Example:
/* Check for a normal file. */
if (file_exists("franken.dat", 0, NULL))
allegro_message("It is alive!\n");
RETURN VALUE
Returns non-zero if the file exists, or zero if it doesn't or the specified attributes mask it out.