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: ./CppStdArrayExample3/CppStdArrayExample3.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

./CppStdArrayExample3/main.cpp


#include <array>

#include <cassert>

#include <iostream>



int main()

{

  //Create a Y-X ordered 2D std::array

  static const int n_rows = 2;

  static const int n_cols = 3;

  std::array<std::array<int,n_cols>,n_rows> v;



  //Must be initialized

  for (int y=0; y!=n_rows; ++y)

  {

    for (int x=0; x!=n_cols; ++x)

    {

      //Use std::array<T,U>::at to check for range

      v[y][x] = x + (y * n_cols);

      assert(v.at(y).at(x) >= 0);

    }

  }



  for (const auto row: v)

  {

    for (const auto cell: row)

    {

      std::cout << cell << " ";

    }

    std::cout << '\n';

  }

}



/*



0 1 2

3 4 5

Press <RETURN> to close this window...



*/

Go back to Richel Bilderbeek's C++ page.

Go back to Richel Bilderbeek's homepage.

This page has been created by the tool CodeToHtml

(C++) StdArrayExample3

Technical facts

Qt project file: ./CppStdArrayExample3/CppStdArrayExample3.pro

./CppStdArrayExample3/main.cpp