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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <locale>
// template <> class codecvt<char, 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<char, 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[10]= {0};
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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