How do I detect a quoted substring in a string?

[SteveMann]

am trying to determine if a string contains a quoted substring.
This is my code that gives me a compile error: "ai3.cpp:162:37: warning: character constant too long for its type"

		//if the line contains 'class="wikitable"'
		string findString = 'class="wikitable"';
			
		size_t pos = str.find(findString);
                if (pos != string::npos) {
                        cout << "Substring found at position " << pos << endl;
                }

I've tried:

"'class=\"wikitable\"'"

but str.find doesn't find my substring.

So, can anyone suggest how I may search for the presence of a quoted substring?

[VictorN]

And what does the str.find return?

[salem_c]

> This is my code that gives me a compile error: "ai3.cpp:162:37: warning: character constant too long for its type"
The outer string needs to be in double quotes, and the inner ones escaped.

Like so

string findString = "class=\"wikitable\"";

This isn't Python, where '' and "" are equivalent.

[2kaud]

or you can use raw strings

#include <iostream>
#include <string>

int main() {
	const std::string findString { R"(class="wikitable")" };

	std::cout << findString << '\n';
}

which displays:

class="wikitable"