Question

I am trying to do

memset(&idt_entries, 0, sizeof(idt_entry_t)*256);

which produces

error: cannot convert ‘idt_entry_t (*)[256] {aka idt_entry_struct ()[256]}’ to ‘u8int {aka unsigned char*}’ for argument ‘1’ to ‘void memset(u8int*, u8int, u32int)’

If it helps, it is C code wraped in extern "C" {...}.

Thanks!

Answer 1

idt_entries is an array 256 of idt_entry_t.

The value of the array idt_entries is a pointer to its first element. Use this value as the first argument to memset. The size of your array is sizeof idt_entries.

So here is how to correctly call memset to set all array elements to 0:

memset(idt_entries, 0, sizeof idt_entries);