What's wrong with this line?

[jollygnome123]

There's this one line of code that's giving me trouble and I can't seem to figure out what I'm doing wrong. Any suggestions?

if(tok2.value.at(0) == '(' )

Basically, I just want to check if a string has parentheses (tok2 is a struct, and value is its string component).

[therockon7throw]

Hi
what does tok2.value.at(0) return? could you check it out ?

[roberts]

wouldn't it be better to use the [] operator instead?

if( tok2.value[0] == '(' )

Also, what is the error you're getting? All you said, really, is that it's not working.

[naderST]

Perhaps value is an empty string? You can try to catch an exception and see what is wrong.

[clanmjc]

You could do something like this this:

#include <algorithm>
//...

int match[] = {'(',')'};
std::string::iterator it = std::find_first_of(tok2.value.begin(),tok2.value.end(),match, match +2);
	if(it != tok2.value.end())
		std::cout << "FOUND" << std::endl;  //You know you have found it.