optimized itoa function

Question

I am thinking on how to implement the conversion of an integer (4byte, unsigned) to string with SSE instructions. The usual routine is to divide the number and store it in a loc

Answer 1

http://sourceforge.net/projects/itoa/

Its uses a big static const array of all 4-digits integers and uses it for 32-bits or 64-bits conversion to string.

Portable, no need of a specific instruction set.

The only faster version I could find was in assembly code and limited to 32 bits.