Been playing with itoa() for a school project and it was working fine then started to throw errors. Says its having a segmenation error when first instance of itoa is handled.
Here's the offending code.
I don't see why it would work at first then start having issues. The only thing I had added pre-breakdown was some lines of printf() at the bottom which I didn't include as I've already commented them out of the code and it still doesn't work.
#include <stdio.h>
#include <stdlib.h>
int main()
{
//Variables
unsigned int byteH=0b00011001;
unsigned int byteL=0b00001110;
char* sValue;
char* sFreq;
float iConv;
char Output[4];
int i;
i=((byteH*32)+byteL); // just adding two 5bit blocks together
itoa(i,sValue,10); // This instance throws the segmenation error
iConv=((byteH*32)+byteL);
iConv=(int)(iConv/1.023);
i=(int)iConv;
itoa(i,sFreq,10); // This instance doesn't cause problems.
The function itoa expects an alreay allocated buffer. Try:
char* sValue = malloc(20);
Same goes for sFreq, even if it happens to "work" as it is.