Qt project file


#-------------------------------------------------

#

# Project created by QtCreator 2010-09-28T13:57:09

#

#-------------------------------------------------

QT       += core

QT       -= gui

LIBS += -L/usr/lib -lboost_system

LIBS += -L/usr/lib -lboost_filesystem

TARGET = CppGetLastWriteTime

CONFIG   += console

CONFIG   -= app_bundle

TEMPLATE = app

SOURCES += main.cpp

main.cpp


#include <cassert>

#include <ctime>

#include <iostream>

#include <boost/filesystem.hpp>

#include <boost/lexical_cast.hpp>



///TimeToStr converts std::time_t to std::string.

///From http://www.richelbilderbeek.nl/CppTimeToStr.htm

const std::string TimeToStr(const std::time_t& time)

{

  return std::ctime( &time);

}



///GetLastModifiedTime returns the last time when a file is modified.

///From http://www.richelbilderbeek.nl/CppGetLastModifiedTime.htm

const std::time_t GetLastModifiedTime(const std::string& filename)

{

  assert(boost::filesystem::exists(filename));

  return boost::filesystem::last_write_time(filename);

}



int main(int, char* argv[])

{

  const std::string filename = argv[0];

  const std::string s = TimeToStr(GetLastModifiedTime(filename));

  std::cout << s << '\n';



}

Screen output:


Tue Sep 28 14:20:38 2010

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(C++) GetLastModifiedTime

Qt project file

main.cpp