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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.
//
//===----------------------------------------------------------------------===//
// <codecvt>
// template <class Elem, unsigned long Maxcode = 0x10ffff,
// codecvt_mode Mode = (codecvt_mode)0>
// class codecvt_utf8_utf16
// : public codecvt<Elem, char, mbstate_t>
// {
// // unspecified
// };
// result
// unshift(stateT& state,
// externT* to, externT* to_end, externT*& to_next) const;
#include <codecvt>
#include <cassert>
int main()
{
{
typedef std::codecvt_utf8_utf16<wchar_t> C;
C c;
char n[4] = {0};
std::mbstate_t m;
char* np = nullptr;
std::codecvt_base::result r = c.unshift(m, n, n+4, np);
assert(r == std::codecvt_base::noconv);
}
{
typedef std::codecvt_utf8_utf16<char16_t> C;
C c;
char n[4] = {0};
std::mbstate_t m;
char* np = nullptr;
std::codecvt_base::result r = c.unshift(m, n, n+4, np);
assert(r == std::codecvt_base::noconv);
}
{
typedef std::codecvt_utf8_utf16<char32_t> C;
C c;
char n[4] = {0};
std::mbstate_t m;
char* np = nullptr;
std::codecvt_base::result r = c.unshift(m, n, n+4, np);
assert(r == std::codecvt_base::noconv);
}
}
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