ustrerror - Returns a string describing errno. Allegro game programming library.
#include <allegro.h>
const char *ustrerror(int err);
This function returns a string that describes the error code `err', which
normally comes from the variable `errno'. Example:
PACKFILE *input_file = pack_fopen("badname", "r");
if (input_file == NULL)
allegro_message("%s\nSorry!\n", ustrerror(errno));
Returns a pointer to a static string that should not be modified or freed. If
you make subsequent calls to ustrerror(), the string will be overwritten.
uconvert(3), allegro_error(3)