Converting string to integer

Hello experts,

How can I convert a string (of type string, not char*) into an integer?
Is there an API function for this? atoi works only on char*, however, converting all the strings to char* won't be efficient (I have a lot of strings :-) )

Any suggestions?
MakoverAsked:
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mnashadkaCommented:
Using c_str casts the string to a const char *, so you could say:
std::string s = "231";
int i = atoi(s.c_str());
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mnashadkaCommented:
By the way, c_str just lets you get at the underlying buffer's char *, it doesn't create a new one or anything, so the efficiency is probably close to as good as you can get.
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