What are the sizes of each primitive datatype on a Metro M4 Express SAMD51?
And that is the only difference in fundamental type sizes. On 8-bit Arduinos int is 16 bit and on 32-bit int is 32 bit.


short is 16 bit
long is 32 bit 
long long is 64 bit 


https://en.cppreference.com/w/cpp/language/types