/* * i s l o w e . c */ /*)LIBRARY */ #ifdef DOCUMENTATION title islower Test for Lower-case Alphabetic index Test for lower-case alphabetic synopsis .s.nf int islower(c) int c; .s.f Description Return non-zero if c is a lowercase alphabetic character, zero otherwise. Bugs The value is defined only if isascii(c) is TRUE. #endif #include #ifdef islower #undef islower #endif int islower(c) int c; { return (_ctype_[c & 0177] & _L); }