DOKK / manpages / debian 10 / allegro4-doc / is_relative_filename.3alleg4.en
is_relative_filename(3alleg4) Allegro manual is_relative_filename(3alleg4)

is_relative_filename - Returns TRUE if the filename is relative. Allegro game programming library.

#include <allegro.h>

int is_relative_filename(const char *filename);

Returns TRUE if the filename is relative or FALSE if it is absolute. Note that an absolute filename under DOS (with a device separator) will be considered as relative under Unix, because there absolute paths always start with a slash.

make_absolute_filename(3alleg4), make_relative_filename(3alleg4)

version 4.4.2 Allegro