How to specify 64 bit integers in c

Question

I\'m trying to use 64 bit integers in C, but am getting mixed signals as to whether it should be possible.

When I execute the printf:

printf(\"Size o         


        

Answer 1

Use stdint.h for specific sizes of integer data types, and also use appropriate suffixes for integer literal constants, e.g.:

#include 

int64_t i2 = 0x0000444400004444LL;