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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <locale>
// template <> class codecvt<wchar_t, char, mbstate_t>
// int length(stateT& state, const externT* from, const externT* from_end, size_t max) const;
#include <locale>
#include <cassert>
typedef std::codecvt<wchar_t, char, std::mbstate_t> F;
int main()
{
std::locale l = std::locale::classic();
const F& f = std::use_facet<F>(l);
std::mbstate_t mbs = {};
const char* from = "123467890";
assert(f.length(mbs, from, from+10, 0) == 0);
assert(f.length(mbs, from, from+10, 9) == 9);
assert(f.length(mbs, from, from+10, 10) == 10);
assert(f.length(mbs, from, from+10, 11) == 10);
assert(f.length(mbs, from, from+10, 100) == 10);
}
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