iterator string

Code:

59:	string::iterator it = line.begin();
60:	int j = 0;
61:  	for ( ; it < line.end(); it++)
62:  		for ( ; j < width_; j++ )
63:    	maze_[i][j] = *it;

compiler says:
61: error: ‘it’ was not declared in this scope

I say:
"WTF?"

Provide the smallest possible compilable code that demonstrates the problem?

From those lines of codes pretty much the only cause i can find for that error is that you forgot to use the std namespace (ie. need to use std::string::iterator).