memcpy with unsigned long[64]

[zeolite]

The first code snippet works, the second crashes. As I understand, the second snippet would be more efficient (if I could get it to work). Can someone please point out my stupid mistake? Cheers.

unsigned long cell[64];

for(int i = 0; i < 64; i++)
    cell[i] = 0;

unsigned long cell[64];

memcpy(cell, 0, sizeof(cell));

[RLScott]

Use memset instead of memcpy. memcpy expects the second parameter to be an array of the same size.

[keeshux]

Or bzero. Is it available on iOS?

[Duncan C]

Originally Posted by keeshux

Or bzero. Is it available on iOS?

I had the same thought, but the docs suggest that it's not (it shows up when you search the Mac OS docs, but not when you search iOS)

[keeshux]

Good to know, thank you!