fmk - adding outputFormatted

code/c++/outputFormatted.cpp

@@ -0,0 +1,21 @@
+
+// formatted outut looks awful before c++20
+
+#include <iostream>
+#include <sstream>
+#include <string>
+
+int main() {
+    double d = 50.0123456789;
+
+    std::string s;
+    std::stringstream sstream;
+    sstream.setf(std::ios::fixed);
+    sstream.precision(10);
+    sstream << d;
+
+    s = sstream.str();
+    std::cout << d << std::endl;
+    std::cout << s << std::endl;
+    return 0;
+}