HG_REPOSITORIES/LPP/INSTRUMENTATION/USERS/JEANDET/SciQLOPCore Files · include/Common/cpp_utils.h

Updated TS lib...

Updated TS lib Signed-off-by: Alexis Jeandet <alexis.jeandet@member.fsf.org>

jeandet - - Load All Authors

File last commit:

r84:483146a07a5f


                r88:4e4ec6844f70

Download file

             cpp_utils.h
        
                    37 lines
            
             | 1.8 KiB
            
                | text/x-c
            
             |
                CLexer
            
             / include / Common / cpp_utils.h
          
                    History
                
                 |
                  Annotation
                 | Raw
                 |Copy content
                 |Copy permalink

      #ifndef CPP_UTILS_H

      #define CPP_UTILS_H

      #include <functional>

      #include <tuple>

      #include <type_traits>

      template<class...> using void_t = void;

      #define HAS_METHOD(method)                                                     \

        template<class T, class = void> struct _has_##method : std::false_type       \

        {};                                                                          \

                                                                                     \

        template<class T>                                                            \

        struct _has_##method<                                                        \

            T, void_t<std::is_member_function_pointer<decltype(&T::method)>>>        \

            : std::true_type                                                         \

        {};                                                                          \

                                                                                     \

        template<class T>                                                            \

        static inline constexpr bool has_##method = _has_##method<T>::value;

      // taken from here https://www.fluentcpp.com/2017/10/27/function-aliases-cpp/

      #define ALIAS_TEMPLATE_FUNCTION(highLevelF, lowLevelF)                         \

        template<typename... Args>                                                   \

        inline auto highLevelF(Args&&... args)                                       \

            ->decltype(lowLevelF(std::forward<Args>(args)...))                       \

        {                                                                            \

          return lowLevelF(std::forward<Args>(args)...);                             \

        }

      template<typename T> constexpr T diff(const std::pair<T, T>& p)

      {

        return p.second - p.first;

      }

      #endif // CPP_UTILS_H

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
g 0-9	Goto bookmarked items from 0-9
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository access permissions settings
t s	Toggle sidebar on some pages

				#ifndef CPP_UTILS_H
				#define CPP_UTILS_H

				#include <functional>
				#include <tuple>
				#include <type_traits>

				template<class...> using void_t = void;

				#define HAS_METHOD(method) \
				template<class T, class = void> struct _has_##method : std::false_type \
				{}; \
				\
				template<class T> \
				struct _has_##method< \
				T, void_t<std::is_member_function_pointer<decltype(&T::method)>>> \
				: std::true_type \
				{}; \
				\
				template<class T> \
				static inline constexpr bool has_##method = _has_##method<T>::value;

				// taken from here https://www.fluentcpp.com/2017/10/27/function-aliases-cpp/
				#define ALIAS_TEMPLATE_FUNCTION(highLevelF, lowLevelF) \
				template<typename... Args> \
				inline auto highLevelF(Args&&... args) \
				->decltype(lowLevelF(std::forward<Args>(args)...)) \
				{ \
				return lowLevelF(std::forward<Args>(args)...); \
				}

				template<typename T> constexpr T diff(const std::pair<T, T>& p)
				{
				return p.second - p.first;
				}

				#endif // CPP_UTILS_H