add: sizestring.cpp

Author: vck

sizestring.cpp

@@ -0,0 +1,11 @@
+// string::size
+#include <iostream>
+#include <string>
+
+int main ()
+{
+  std::string str ("Hello, World!");
+  std::cout << "Hello, World!";
+  std::cout << "The size of str is " << str.size() << " bytes.\n";
+  return 0;
+}