Iterating over a QMap with for

Question

I\'ve a QMap object and I am trying to write its content to a file.

QMap extensions;
//.. 

for(auto e : extensions)
{
  fou         


        

Answer 1

If you want the STL style with first and second, do this:

for(auto e : extensions.toStdMap())
{
  fout << e.first << "," << e.second << '\n';
}

If you want to use what Qt offers, do this:

for(auto e : extensions.keys())
{
  fout << e << "," << extensions.value(e) << '\n';
}