(C++) GetTime

 

 

GetTime is a time code snippet to obtain now's time.

 

GetTime can depend on two different libraries:

• Boost version of GetTime
• STL version of GetTime

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++98

Compiler(s):

• G++ 4.9.2

Libraries used:

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

 

 

 

 

 

Qt project file: ./CppGetTime/CppGetTime.pro

 

---

include(../../ConsoleApplication.pri) include(../../Libraries/Boost.pri) SOURCES += main.cpp

 

 

 

 

 

./CppGetTime/main.cpp

 

---

#include <cstdlib> #include <ctime> #include <iostream> #include <sstream> #include <string> #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Weffc++" #pragma GCC diagnostic ignored "-Wunused-local-typedefs" #include <boost/date_time/posix_time/posix_time.hpp> #pragma GCC diagnostic pop ///TimeToStr converts std::time_t to std::string. ///From http://www.richelbilderbeek.nl/CppTimeToStr.htm std::string TimeToStr(const std::time_t& time) noexcept {   std::string s { std::ctime(&time) };   assert(s.back() == '\n');   s.pop_back(); //Remove newline   return s; } //From http://www.richelbilderbeek.nl/CppGetTime.htm std::time_t GetTimeT() noexcept {   return std::time(0); } //From http://www.richelbilderbeek.nl/CppGetTime.htm std::string GetTimeStl() noexcept {   return TimeToStr(GetTimeT()); } //From http://www.richelbilderbeek.nl/CppGetTime.htm std::string GetTimeBoost() noexcept {   //Get the local time   boost::posix_time::ptime now     = boost::posix_time::second_clock::local_time();   //Convert the time to std::stringstream   std::stringstream s;   s << now.time_of_day();   //Return the std::string   return s.str(); } int main() {   std::cout << "Time now (STL): " << GetTimeStl() << '\n';   std::cout << "Time now (Boost): " << GetTimeBoost() << '\n'; } /* Screen output: Time now (STL): Fri Jan 17 09:54:38 2014 Time now (Boost): 09:54:38 Press <RETURN> to close this window... */