import core/allocate;

namespace string {

    @len (u64) (str string) {
        i8* ptr = (i8*)string;
        u64 length = 0;
        while(ptr[length] != 0)
        {
            length += 1;
        }
        return length;
    }

    @concat (str) (str a, str b) {
        u64 len_a = len(a);
        u64 len_b = len(b);
        u64 final_size = len_a + len_b;
        i8* chars = (i8*)allocate.memalloc(final_size + 1);
        clone(a,chars,len_a);
        clone(b,chars + len_a,len_b);
        chars[final_size] = 0;
        return (str)chars;
    }

    @clone (str string, i8* buffer, u64 max_copy_size) {
        u64 chars_cloned = 0;
        i8* ptr = (i8*)string;
        while(chars_cloned <= max_copy_size and ptr[chars_cloned] != 0)
        {
            buffer[chars_cloned] = ptr[chars_cloned];
            chars_cloned += 1;
        }
    }
}