#include <string>
using namespace std;

struct N {
	N(const string & t_) { }
};

int main()
{
	string s1 = string("bananas");
	string s2 = "bananas";
	N n1 = string("bananas");
	N n2 = "bananas";
}

In function 'int main()':
Line 13: error: conversion from 'const char [8]' to non-scalar type 'N' requested
compilation terminated due to -Wfatal-errors.