// fig19_23.cpp 
// C++20 text-formatting field width and precision placeholders.
#include <format>
#include <iostream>

int main() {
   std::cout << "Demonstrating field width and precision placeholders:\n";

   double value{123.456};
   int width{8};

   for (int precision{0}; precision < 5; ++precision) {
      std::cout << std::format("{:{}.{}f}\n", value, width, precision);
   }
}

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