(C++) StdFunctionExample3

 

Technical facts

 

Operating system(s) or programming environment(s)

• Lubuntu 15.04 (vivid)

IDE(s):

• Qt Creator 3.1.1

Project type:

• Console application

C++ standard:

• C++11

Compiler(s):

• G++ 4.9.2

Libraries used:

• STL: GNU ISO C++ Library, version 4.9.2

 

 

 

 

 

Qt project file: ./CppStdFunctionExample3/CppStdFunctionExample3.pro

 

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TEMPLATE = app CONFIG += console CONFIG -= app_bundle CONFIG -= qt SOURCES += main.cpp # # # Type of compile # # CONFIG(debug, debug|release) {   message(Debug mode) } CONFIG(release, debug|release) {   message(Release mode)   #Remove all asserts and TRACE   DEFINES += NDEBUG NTRACE_BILDERBIKKEL } # # # Platform specific # # # # # Compiler flags # # QMAKE_CXXFLAGS += -std=c++11 -Wall -Wextra unix {   QMAKE_CXXFLAGS += -Werror }

 

 

 

 

 

./CppStdFunctionExample3/main.cpp

 

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#include <iostream> #include <functional> struct Speaker {   Speaker() {}   void SayHello(const std::string& name) const noexcept   {     std::cout << "Hello " << name << '\n';   }   void SayBye(const std::string& name) const noexcept   {     std::cout << "Bye " << name << '\n';   } }; int main() {   const Speaker s1;   const Speaker s2;   const std::function<void (const Speaker*, const std::string&)> say_hello_function = &Speaker::SayHello;   const std::function<void (const Speaker*, const std::string&)> say_bye_function = &Speaker::SayBye;   say_hello_function(&s1,"speaker 1");   say_bye_function(&s1,"speaker 1");   say_hello_function(&s2,"speaker 2");   say_bye_function(&s2,"speaker 2"); } /* Screen output: Hello speaker 1 Bye speaker 1 Hello speaker 2 Bye speaker 2 Press <RETURN> to close this window... */