C++11 includes std::stoi, why not std::itos?

Question

I noticed to my glee that C++11 has a std::sto@ family of functions for easily unpacking ints/floats/longs whatever from strings. I'm surprised however, that the opposite isn't implemented. Why didn't the standards committee include a std::itos family of functions for going from ints/floats/whatever (back) to strings?

score 44 · Accepted Answer · edited May 23 '17 at 11:33

44

I was mistaken, there is a set of "Xtos" functions, they are all just named to_string. Each to_string is overloaded to take a different basic type, i.e.:

std::string to_string(float f);
std::string to_string(int f);
...

See here for more info.

edited May 23 '17 at 11:33

Community

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answered May 11 '12 at 20:43

Doug T.

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Which leaves the question why the `stoX` functions were named such awkwardly instead of providing a matching generic `from_string` specialized for each arithmetic type `T`. – 5gon12eder Mar 09 '16 at 01:59
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Probably following on from C – Mark K Cowan Feb 01 '17 at 22:37
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to_string is not the exact opposite of stoi, bacause in stoi() you can specify base, but in to_string() you cant :/ – Marin Shalamanov Sep 13 '18 at 03:15

C++11 includes std::stoi, why not std::itos?

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