Question

I want to store two 32-bit values in a single long int variable.

How would you do this on a 32-bit OS using C? Is it possible to store the data in a single long long variable? If so, how is that done?

Answer 1

Assuming a long is 64 bits on your platform,

int v1 = 123;
int v2 = 456;
long val = v1 << 32 | v2;