Rounding differences on Windows vs Unix based system in sprintf

Question

I have problem on UNIX based systems sprintf does not round up properly value.

For example

double tmp = 88888888888885.875
char out[512];
         


        

Answer 1

That's because you're using double which has accuracy limitations, meaning, your 88888888888885.875 is probably being rounded to something else internally.

See more info in a similar question, in blogs or in wikipedia.