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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<char16_t, char, mbstate_t>
// int length(stateT& state, const externT* from, const externT* from_end, size_t max) const;
// This test runs in C++20, but we have deprecated codecvt<char(16|32), char, mbstate_t> in C++20.
// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS
// Test is intended to convert between UTF8 and UTF16/32, it will fail on
// z/OS since at default char type on z/OS is EBCDIC character which has
// value different from ASCII character.
// UNSUPPORTED: target={{.+}}-zos{{.*}}
#include <locale>
#include <cassert>
#include "test_macros.h"
typedef std::codecvt<char16_t, char, std::mbstate_t> F;
int main(int, char**)
{
std::locale l = std::locale::classic();
const F& f = std::use_facet<F>(l);
std::mbstate_t mbs = {};
const char from[] = "some text";
assert(f.length(mbs, from, from+10, 0) == 0);
assert(f.length(mbs, from, from+10, 8) == 8);
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, 100) == 10);
return 0;
}
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