//===--- StringViewExtras.h -------------------------------------*- C++ -*-===//

//

// 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

//

//===----------------------------------------------------------------------===//

//

// There are two copies of this file in the source tree.  The one under

// libcxxabi is the original and the one under llvm is the copy.  Use

// cp-to-llvm.sh to update the copy.  See README.txt for more details.

//

//===----------------------------------------------------------------------===//

#ifndef DEMANGLE_STRINGVIEW_H

#define DEMANGLE_STRINGVIEW_H

#include "DemangleConfig.h"

#include <string_view>

DEMANGLE_NAMESPACE_BEGIN

inline bool starts_with(std::string_view self, char C) noexcept {

  return !self.empty() && *self.begin() == C;

}

inline bool starts_with(std::string_view haystack,

                        std::string_view needle) noexcept {

  if (needle.size() > haystack.size())

    return false;

  haystack.remove_suffix(haystack.size() - needle.size());

  return haystack == needle;

}

DEMANGLE_NAMESPACE_END

#endif