Looping trhu structs/class elements
Author
Is there any better way to do this?
RECT rect; //= {0,0,0,0};
// cant relay to init {}
rect.top = 0;
rect.bottom = 0;
rect.left = 0;
rect.right = 0;
So is there better way looping thoes four? Is enum solution?
Short answer, Not really.
The names inside a struct or a class are there for the programer.
By the time It gets executed its an address and a space allocation inside the binary.
If it''s really getting you down you might try.
memset(&rect, 0, sizeof(rect));
This will be a fraction slower then zeroing the members your self. {Functional overhead} but does mean the your code is a bit shorter.
Regards,
Armand
The names inside a struct or a class are there for the programer.
By the time It gets executed its an address and a space allocation inside the binary.
If it''s really getting you down you might try.
memset(&rect, 0, sizeof(rect));
This will be a fraction slower then zeroing the members your self. {Functional overhead} but does mean the your code is a bit shorter.
Regards,
Armand
Author
quote:Original post by Armand
Short answer, Not really.
The names inside a struct or a class are there for the programer.
By the time It gets executed its an address and a space allocation inside the binary.
If it''s really getting you down you might try.
memset(&rect, 0, sizeof(rect));
This will be a fraction slower then zeroing the members your self. {Functional overhead} but does mean the your code is a bit shorter.
Regards,
Armand
Hmm that would be the solution, but actualy I need to get values.
Perhaps you want something like this?
struct RECT { union { struct { int top; int bottom; int left; int right; }; int data[4]; };};#include <iostream>int main() { RECT rect; for (int i=0; i<4; ++i) rect.data[i] = 0; rect.top = 2; rect.right = 6; for (int i=0; i<4; ++i) std::cout << rect.data[i] << ''\n'';}
Why not ...
or something there abouts.
class MyRect : public RECT{ public: inline MyRect(void) { left = right = top = bottom = 0; }; inline MyRect(const MyRect &src) { left = src.left; right = src.right; top = src.top; bottom = src.bottom; }; inline MyRect(long left, long top, long right, long bottom) { this->left = left; this->right = right; this->top = top; this->bottom = bottom; }; inline MyRect &operator =(const MyRect &src) { left = src.left; right = src.right; top = src.top; bottom = src.bottom; return(this); };};int main(void){ MyRect arect(1,2,3,4), brect(arect), crect; crect = MyRect(4,3,2,1); arect = brect = crect; return(0);} or something there abouts.
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