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Can I easily iterate over the values of a map using a range-based for loop?

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醉梦人生
醉梦人生 2021-02-03 20:38

Is it possible to iterate over all of the values in a std::map using just a "foreach"?

This is my current code:

std::map
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  • 南笙
    南笙 (楼主)
    2021-02-03 21:30

    From C++1z/17, you can use structured bindings:

    #include 
#include 
#include 

int main() {
   std::map m;

   m[1] = "first";
   m[2] = "second";
   m[3] = "third";

   for (const auto & [key, value] : m)
      std::cout << value << std::endl;
}

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