Additionally, here is a thread of Linus Torvalds pointing out even more of the confusing nature of arrays and sizeof in C: I really like the idiom for passing

Additionally, here is a thread of Linus Torvalds pointing out even more of the confusing nature of arrays and sizeof in C: I really like the idiom for passing sized arrays suggested at the end of that LKML thread[1]: pass them by reference! void func(int (*arr)[256]) { printf("arr size: %ld\n", sizeof(*arr)); } int main(void) { int array[256]; func(&array); } [1] https://lkml.org/lkml/2015/9/7/147 https://lkml.org/lkml/2015/9/7/147