#include <locale>
#include <cassert>
int main()
{
std::locale l = std::locale::classic();
{
typedef std::ctype<char> F;
const F& f = std::use_facet<F>(l);
assert(f.is(F::space, ' '));
assert(!f.is(F::space, 'A'));
assert(f.is(F::print, ' '));
assert(!f.is(F::print, '\x07'));
assert(f.is(F::cntrl, '\x07'));
assert(!f.is(F::cntrl, ' '));
assert(f.is(F::upper, 'A'));
assert(!f.is(F::upper, 'a'));
assert(f.is(F::lower, 'a'));
assert(!f.is(F::lower, 'A'));
assert(f.is(F::alpha, 'a'));
assert(!f.is(F::alpha, '1'));
assert(f.is(F::digit, '1'));
assert(!f.is(F::digit, 'a'));
assert(f.is(F::punct, '.'));
assert(!f.is(F::punct, 'a'));
assert(f.is(F::xdigit, 'a'));
assert(!f.is(F::xdigit, 'g'));
assert(f.is(F::alnum, 'a'));
assert(!f.is(F::alnum, '.'));
assert(f.is(F::graph, '.'));
assert(!f.is(F::graph, '\x07'));
}
}