Thread: Replace elements in string

Hello, I'm writing a function that takes a string and process it in a way to replace all occurences of "+-" with "-".
This is what I've done:

Code:

void foo (string& str)
{
	string :: size_type ind;
	ind = str.find ("+-");
	while (ind != string :: npos)
	{
		str.replace (ind, strlen("+-"),"-");
		ind = str.find ("+-", ind + 2);
	}
}

And this works, but I wonder if this could be done in more elegant way.
Please, give me some advices.
Thanks

Code:

str.replace (ind, strlen("+-"),"-");

Why do you keep calling strlen() on a string literal?