GSL/include/gsl_assert.h
2015-10-08 11:37:03 -07:00

62 lines
1.8 KiB
C++

///////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2015 Microsoft Corporation. All rights reserved.
//
// This code is licensed under the MIT License (MIT).
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
///////////////////////////////////////////////////////////////////////////////
#pragma once
#ifndef GSL_ASSERT_H
#define GSL_ASSERT_H
#include <exception>
#if defined(GSL_THROWS_FOR_TESTING)
#include <stdexcept>
#endif
namespace gsl {
//
// Having "fail fast" result in an exception makes unit testing
// the GSL classes that rely upon it much simpler.
//
#if defined(GSL_THROWS_FOR_TESTING)
struct fail_fast : public std::runtime_error
{
fail_fast() : std::runtime_error("") {}
explicit fail_fast(char const* const message) : std::runtime_error(message) {}
};
inline void fail_fast_assert(bool cond) { if (!cond) throw fail_fast(); }
inline void fail_fast_assert(bool cond, const char* const message) { if (!cond) throw fail_fast(message); }
#else
inline void fail_fast_assert(bool cond) { if (!cond) std::terminate(); }
inline void fail_fast_assert(bool cond, const char* const) { if (!cond) std::terminate(); }
#endif // GSL_THROWS_FOR_TESTING
//
// GSL.assert: assertions
//
#define Expects(x, ...) gsl::fail_fast_assert((x), __VA_ARGS__)
#define Ensures(x, ...) gsl::fail_fast_assert((x), __VA_ARGS__)
} // namespace gsl
#endif // GSL_ASSERT_H