catch_common.h

/*
 *  Created by Phil on 29/10/2010.
 *  Copyright 2010 Two Blue Cubes Ltd. All rights reserved.
 *
 *  Distributed under the Boost Software License, Version 1.0. (See accompanying
 *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 */
#ifndef TWOBLUECUBES_CATCH_COMMON_H_INCLUDED
#define TWOBLUECUBES_CATCH_COMMON_H_INCLUDED

#include <catch2/catch_compiler_capabilities.h>

#define INTERNAL_CATCH_UNIQUE_NAME_LINE2( name, line ) name##line
#define INTERNAL_CATCH_UNIQUE_NAME_LINE( name, line ) INTERNAL_CATCH_UNIQUE_NAME_LINE2( name, line )
#ifdef CATCH_CONFIG_COUNTER
#  define INTERNAL_CATCH_UNIQUE_NAME( name ) INTERNAL_CATCH_UNIQUE_NAME_LINE( name, __COUNTER__ )
#else
#  define INTERNAL_CATCH_UNIQUE_NAME( name ) INTERNAL_CATCH_UNIQUE_NAME_LINE( name, __LINE__ )
#endif

#include <iosfwd>
#include <string>
#include <cstdint>

// We need a dummy global operator<< so we can bring it into Catch namespace later
struct Catch_global_namespace_dummy {};
std::ostream& operator<<(std::ostream&, Catch_global_namespace_dummy);

namespace Catch {

    struct CaseSensitive { enum Choice {
        Yes,
        No
    }; };

    class NonCopyable {
        NonCopyable( NonCopyable const& )              = delete;
        NonCopyable( NonCopyable && )                  = delete;
        NonCopyable& operator = ( NonCopyable const& ) = delete;
        NonCopyable& operator = ( NonCopyable && )     = delete;
    protected:
        NonCopyable() noexcept = default;
    };

    struct SourceLineInfo {

        SourceLineInfo() = delete;
        constexpr SourceLineInfo( char const* _file, std::size_t _line ) noexcept:
            file( _file ),
            line( _line )
        {}

        SourceLineInfo( SourceLineInfo const& other )            = default;
        SourceLineInfo& operator = ( SourceLineInfo const& )     = default;
        SourceLineInfo( SourceLineInfo&& )              noexcept = default;
        SourceLineInfo& operator = ( SourceLineInfo&& ) noexcept = default;

        bool operator == ( SourceLineInfo const& other ) const noexcept;
        bool operator < ( SourceLineInfo const& other ) const noexcept;

        char const* file;
        std::size_t line;
    };

    std::ostream& operator << ( std::ostream& os, SourceLineInfo const& info );

    // Bring in operator<< from global namespace into Catch namespace
    // This is necessary because the overload of operator<< above makes
    // lookup stop at namespace Catch
    using ::operator<<;

    // Use this in variadic streaming macros to allow
    //    >> +StreamEndStop
    // as well as
    //    >> stuff +StreamEndStop
    struct StreamEndStop {
        std::string operator+() const;
    };
    template<typename T>
    T const& operator + ( T const& value, StreamEndStop ) {
        return value;
    }

    // backported index_sequnce
    template <std::size_t ...>
    struct indexSequence
    { };

    template <std::size_t N, std::size_t ... Next>
    struct indexSequenceHelper : public indexSequenceHelper<N-1U, N-1U, Next...>
    { };

    template <std::size_t ... Next>
    struct indexSequenceHelper<0U, Next ... >
    { using type = indexSequence<Next ... >; };

    template <std::size_t N>
  using makeIndexSequence = typename indexSequenceHelper<N>::type;

}

#define CATCH_INTERNAL_LINEINFO \
    ::Catch::SourceLineInfo( __FILE__, static_cast<std::size_t>( __LINE__ ) )

#endif // TWOBLUECUBES_CATCH_COMMON_H_INCLUDED