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: ./CppStdUniqueExample1/CppStdUniqueExample1.pro


include(../../ConsoleApplication.pri) #Or use the code below

# QT += core

# QT += gui

# greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

# CONFIG   += console

# CONFIG   -= app_bundle

# TEMPLATE = app

# CONFIG(release, debug|release) {

#   DEFINES += NDEBUG NTRACE_BILDERBIKKEL

# }

# QMAKE_CXXFLAGS += -std=c++11 -Wall -Wextra -Weffc++

# unix {

#   QMAKE_CXXFLAGS += -Werror

# }



SOURCES += main.cpp

./CppStdUniqueExample1/main.cpp


#include <algorithm>

#include <cassert>

#include <vector>



int main()

{

  //Create a std::vector

  std::vector<int> v;

  v.push_back(1);

  v.push_back(2);

  v.push_back(2);

  v.push_back(3);

  v.push_back(3);

  v.push_back(3);



  assert(v.size() == 6);



  //Unique does not resize the std::vector

  std::vector<int>::iterator new_end

    = std::unique(v.begin(),v.end());



  assert(v.size() == 6);

  assert(v[0] == 1);

  assert(v[1] == 2);

  assert(v[2] == 3);



  //Resize the std::vector

  v.erase(new_end,v.end());



  assert(v.size() == 3);

  assert(v[0] == 1);

  assert(v[1] == 2);

  assert(v[2] == 3);

}

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(C++) StdUniqueExample1

Technical facts

Qt project file: ./CppStdUniqueExample1/CppStdUniqueExample1.pro

./CppStdUniqueExample1/main.cpp