Question

How to find substring in string and get the index if found in C++

Answer 1

#include <iostream>
#include <string>

using std::cout;
using std::endl;
using std::string;

int main()
{
	string s1("c++ programming"), s2 = "pro";

	if (s1.find(s2) != string::npos)
		cout << "Found at pos: " << s1.find(s2) << endl;
	else
		cout << "Not found" << endl;

	return 0;
}

/*
run:

Found at pos: 4

*/

 

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