The rule of three (also known as the Law of The Big Three or The Big Three) is a rule of thumb in C++ that claims that if a class defines one of the following it should probably explicitly define all three: destructor, copy constructor, assignment operator
Questions tagged [rule-of-three]
65 questions
-1
votes
1 answer
Move assignment operator, move constructor
I've been trying to nail down the rule of 5, but most of the information online is vastly over-complicated, and the example codes differ.
Even my textbook doesn't cover this topic very well.
On move semantics:
Templates, rvalues and lvalues aside,…
bigcodeszzer
- 916
- 1
- 8
- 27
-1
votes
1 answer
Rule of Three. Copy Constructor, Assignment Operator Implementation
Rule of Three. Copy Constructor, Assignment Operator Implementation
#include
using namespace std;
class IntPart
{
public:
IntPart(); // default constructor
IntPart(int n);
private:
unsigned int* Counts;
unsigned int numParts;
…
user2310042
- 85
- 2
- 4
-2
votes
1 answer
Linked List copy constructor crashing program
i am unsure as to why my copy constructor seems to be crashing the program, all the other functions have been fine in the linked list class. The rule of 5 is really confusing me now with implementation. If anyone has some pointers or guidance of…
bb13
- 9
- 6
-3
votes
2 answers
C++ Error with big three leak in memory-pointer being freed was not allocated (not duplicate)
My code does not run correctly and I don't know how to fix it. This is not a duplicate question to someone asking what is the rule of three because that post does not help me in solving my question as in this post im using a pointer pointer array. I…
Brogrammer
- 191
- 1
- 1
- 10
-4
votes
2 answers
rule of three exercise unexpected result
I try to learn C++ basis in my free time and follow exercises of a book. Firstly, when I enter 9 as row and 8 as column I get malloc freeing error. Secondly, I get 0 as output I can't see what I enter. I want to write the program because I can…
newbie
- 31
- 5