Converting integer to string in C without sprintf

Question

It is possible to convert integer to string in C without sprintf?

Answer 1

You can use itoa where available. If it is not available on your platform, the following implementation may be of interest:

https://web.archive.org/web/20130722203238/https://www.student.cs.uwaterloo.ca/~cs350/common/os161-src-html/atoi_8c-source.html

Usage:

char *numberAsString = itoa(integerValue); 

UPDATE

Based on the R..'s comments, it may be worth modifying an existing itoa implementation to accept a result buffer from the caller, rather than having itoa allocate and return a buffer.

Such an implementation should accept both a buffer and the length of the buffer, taking care not to write past the end of the caller-provided buffer.