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#include <iostream>
#include <string>
 
void print_indented_const(std::size_t dist, const std::string& s)
{
    std::cout << std::string(dist, ' ') << s << '\n' ;
}
 
void print_indented(std::size_t dist, std::string& s)
{
    print_indented_const(dist, s);
}
 
int main()
{
    print_indented(5, "some text");  // illegal
    print_indented_const(5, "some text");  // legal
}

prog.cpp: In function ‘int main()’:
prog.cpp:16:34: error: invalid initialization of non-const reference of type ‘std::string& {aka std::basic_string<char>&}’ from an rvalue of type ‘const char*’
     print_indented(5, "some text");  // illegal
                                  ^
prog.cpp:9:6: error: in passing argument 2 of ‘void print_indented(std::size_t, std::string&)’
 void print_indented(std::size_t dist, std::string& s)
      ^

Standard output is empty