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: ./CppArray_values/CppArray_values.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

# }



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

# win32 {

#   INCLUDEPATH += \

#     ../../Libraries/boost_1_54_0

# }



SOURCES += main.cpp

./CppArray_values/main.cpp


#include <cassert>

#include <map>

#include <vector>



template <class KeyType, class ValueType>

const std::vector<ValueType> array_values(

  const std::map<KeyType,ValueType>& m)

{

  std::vector<ValueType> v;

  for (auto p: m)

  {

    v.push_back(p.second);

  }

  return v;

}



int main()

{

  {

    typedef int KeyType;

    typedef int ValueType;

    std::map<KeyType,ValueType> m;

    m[1] = 1;

    m[2] = 4;

    m[3] = 9;

    m[4] = 16;



    const std::vector<ValueType> values   { array_values(m) };

    const std::vector<ValueType> expected { 1,4,9,16 };

    assert(values == expected);

  }

  {

    typedef std::string KeyType;

    typedef int ValueType;

    std::map<KeyType,ValueType> m;

    m["four" ] = 4;

    m["one"  ] = 1;

    m["three"] = 3;

    m["two"  ] = 2;



    const std::vector<ValueType> values   { array_values(m) };

    const std::vector<ValueType> expected { 4,1,3,2 };

    assert(values == expected);

  }

  {

    typedef int KeyType;

    typedef std::string ValueType;

    std::map<KeyType,ValueType> m;

    m[1] = "one";

    m[2] = "two";

    m[4] = "four";

    m[8] = "eight";



    const std::vector<ValueType> values   { array_values(m) };

    const std::vector<ValueType> expected { "one", "two", "four", "eight" };

    assert(values == expected);

  }

  assert(1==2);

}

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(C++) Array_values

Technical facts

Qt project file: ./CppArray_values/CppArray_values.pro

./CppArray_values/main.cpp