I have a structure that looks like this :
struct bf_t {
bitset<250000> h0;
};
I want to know how to allocate memory for this struct and how to access h0 in my main() .
I tried doing this:
bf_t *b;
b->h0.set(1);
error: base operand of ‘->’ is not a pointer
bf_t *b ;
b.h0.set(1);
error: request for member ‘h0’ in ‘b’, which is of non-class type ‘long long int’
When you declare pointers like this bf_t *b;
you have to assign to them before you use them. You probably want to create a new bf_t on the heap like this: b = new bf_t();
. Then you can use ->
to access its members.
The error message and your code mismatch. However, it's much easier – you don't need pointers at all:
bf_t b;
b.h0.set(1);
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.