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I was looking for a way to convert an integer to a string in a portable manner (portable among at least Windows & Linux and x86 and x86_64) and I though itoa(X) to be standard just like atoi(1).
But I read the following in the Wikipedia entry:
The itoa function is a widespread non-standard extension to the standard C programming language. It cannot be portably used, as it is not defined in any of the C language standards; however, compilers often provide it through the header while in non-conforming mode, because it is a logical counterpart to the standard library function atoi.
So I'd like to know if there is any way to do it in a portable manner or not. In case I have to write my own function, which things do I have to be careful with?
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The next method in this list to convert int to string in C++ is by using the to_string() function. This function is used to convert not only the integer but numerical values of any data type into a string. The to_string() method is included in the header file of the class string, i.e., <string> or <cstring>.
Solution: Use sprintf() function. You can also write your own function using ASCII values of numbers.
Most often you just use printf("%d");
http://en.wikipedia.org/wiki/Printf
You can use sprintf if you need it in a buffer, but how often do you convert to a string and not write it to a file or output device?
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