/* Test whether a basic isxdigit invocation works. */ #include #include "../basic.h" int main(void) { char c1 = 'f'; char c2 = 'g'; if ( !isxdigit(c1) ) errx(1, "isxdigit('%c') was not true", c1); if ( isxdigit(c2) ) errx(1, "isxdigit('%c') was not false", c2); return 0; }