What is the best way to convert a string type to an int type as Industry standard?

Question

In C++, what is the best way to take input string and convert it to a number type. I was messing around with literal strings and was having a difficult time doing this, I am imagining that using a C String is easier? What is the best way for co-workers and fellow students to follow and make it easy and simple? Any thoughts?

What is the industry standard on this? Using STOI?

Define "best". The problem with asking for the "best way", is that everyone's definition of "best" is different. — Sam Varshavchik, Jul 23 '16 at 00:05
My preferred method is use of `boost::lexical_cast` if you have it. — M4rc, Jul 23 '16 at 00:07
No, the problem is that it's been answered 20,000 times before. Learn to research! — Lightness Races in Orbit, Jul 23 '16 at 00:13

score 0 · Accepted Answer · answered Jul 23 '16 at 00:10

0

Look at the following example:

std::string numberString = "125";
int number = std::stoi(numberString ,nullptr);

It can convert an std::string to int

answered Jul 23 '16 at 00:10

Emil Rowland

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Note: a compiler must have C++11 support to use stoi – VladimirM Jul 23 '16 at 00:12
If you're passing `nullptr` as the second parameter and not passing a third, you might as well leave it out and pass only `numberString`. – chris Jul 23 '16 at 00:24

What is the best way to convert a string type to an int type as Industry standard?

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