File: starts_with.char.pass.cpp

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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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17

// <string>

//   bool starts_with(charT x) const noexcept;

#include <string>
#include <cassert>

#include "test_macros.h"

int main(int, char**)
{
    {
    typedef std::string S;
    S  s1 {};
    S  s2 { "abcde", 5 };

    ASSERT_NOEXCEPT(s1.starts_with('e'));

    assert (!s1.starts_with('a'));
    assert (!s1.starts_with('x'));
    assert ( s2.starts_with('a'));
    assert (!s2.starts_with('x'));
    }

  return 0;
}