Cant i store 4294967295 in unsigned int ? Int is 4 bytes on my machine

Question

Why am i getting 0 ?? And compiler warning:

format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long unsigned int’

Answer 1

If your int or unsigned int is 32-bits, neither can store the value 4294967296 since this is 2**32 which would require a 64-bit type.

Even uint32_t can only store the max value 2**32 - 1 so your value is just 1 out of range.

But int32_t can store the max positive value 2**31 - 1 so the signed type is even further off.