Question

I have been asked to perform some logic on an integer, which I think would be much more easier if I convert it to String. So please suggest me if there is a simple way other than
using “sprintf” function in C

Answer 1

The only better way than sprintf is snprintf. For simple integer formatting it probably doesn’t matter, but snprintf will protect you from disaster if you make a stupid assumption (for example, that int can’t be more than 10 digits) or even a reasonable one (like CHAR_BIT==8)…

#define INT_DECIMAL_DIGITS (24*sizeof(int)/CHAR_BIT) // Safe upper bound
char buf[INT_DECIMAL_DIGITS+2]; // Optional sign and null termination
snprintf(buf, sizeof buf, "%d", x);

Couldn’t be much simpler…