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adding line breaks

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Jidong Xiao
2023-09-26 12:10:04 -04:00
parent 587113de44
commit b4a5e201ee
1 changed files with 3 additions and 3 deletions
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lectures/08_vector_implementation/README.md
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@@ -181,11 +181,11 @@ v1.operator=(v2.operator=(v3));
``` ```
- Therefore, the value of the assignment operator (v2 = v3) must be suitable for input to a second assignment - Therefore, the value of the assignment operator (v2 = v3) must be suitable for input to a second assignment
operator. This in turn means the result of an assignment operator ought to be a reference to an object. operator. This in turn means the result of an assignment operator ought to be a reference to an object.
- The implementation of an assignment operator usually takes on the same form for every class: - The implementation of an assignment operator usually takes on the same form for every class:
– Do no real work if there is a self-assignment. – Do no real work if there is a self-assignment.
– Otherwise, destroy the contents of the current object then copy the passed object, just as done by the – Otherwise, destroy the contents of the current object then copy the passed object, just as done by the
copy constructor. In fact, it often makes sense to write a private helper function used by both the copy copy constructor. In fact, it often makes sense to write a private helper function used by both the copy
constructor and the assignment operator. constructor and the assignment operator.
– Return a reference to the (copied) current object, using the this pointer. – Return a reference to the (copied) current object, using the this pointer.
**Note**: In C++, the assignment operator is used for assignment after an object has already been created. And because of that, the following two code snippets behave differently. **Note**: In C++, the assignment operator is used for assignment after an object has already been created. And because of that, the following two code snippets behave differently.