c('PL_get_long')

Availability:C-language interface function

int PL_get_long(term_t +t, long *i)

If t is a Prolog integer that can be represented as a long, assign its value over i. If t is an integer that cannot be represented by a C long, this function returns FALSE. If t is a floating point number that can be represented as a long, this function succeeds as well. See also PL_get_int64().