fig07_14.cpp

// fig07_14.cpp
// C++20: Creating std::arrays from string literals with to_array.
#include <fmt/format.h>
#include <iostream>
#include <array>

int main() {
   // lambda to display a collection of items
   const auto display{
      [](const auto& items) {
         for (const auto& item : items) {
            std::cout << fmt::format("{} ", item);
         }
       }
   };

   // initializing an array with a string literal
   // creates a one-element array<const char*>
   const auto array1{std::array{"abc"}};
   std::cout << fmt::format("array1.size() = {}\narray1: ",
      array1.size());
   display(array1); // use lambda to display contents

   // creating std::array of characters from a string literal 
   const auto array2{std::to_array("C++20")};
   std::cout << fmt::format("\n\narray2.size() = {}\narray2: ",
      array2.size());
   display(array2); // use lambda to display contents

   std::cout << '\n';
}



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