assignment-operator

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compiler generated constructors [duplicate]

This question already has answers here: Conditions for automatic generation of default/copy/move ctor and copy/move assignment operator?[详细]

2022-12-22 09:36 分类：问答
Under what circumstances must I provide, assignment operator, copy constructor and destructor for my C++ class? [duplicate]

This question already has answers here: What is The Rule of Three? (8 answe开发者_开发百科rs) Closed 9 years ago.[详细]

2022-12-21 21:00 分类：问答
Why doesn't Java have compound assignment versions of the conditional-and and conditional-or operators? (&&=, ||=)

So for binary operators on booleans, Java has &, |, ^, && and ||. Let\'s summarize what they do briefly here:[详细]

2022-12-20 22:15 分类：问答
Why is the PHP assignment operator acting as an assignment by reference in this case?

I have some code that appears to behave differently between PHP 4 and PHP 5. This code below:[详细]

2022-12-20 12:25 分类：问答
What is the motivation for Scala assignment evaluating to Unit rather than the value assigned?

What is the motivation for Scala assignment evaluating to Unit rather than the value assigned? A common pattern in I/O pro开发者_如何学编程gramming is to do things like this:[详细]

2022-12-15 04:38 分类：问答
Default assignment operator in inner class with reference members

I\'ve run into an issue I don\'t understand and I was hoping someone here might provide some insight. The simplified code is as follows (original code was a custom queue/queue-iterator implementation)[详细]

2022-12-12 21:53 分类：问答
What are the differences between "=" and "<-" assignment operators?

What are the differences between the assignment operators = and <- in R? I know that operators are slightly different, as this example shows[详细]

2022-12-12 02:41 分类：问答
C# += (plus equals) (Assignment by addition) working very slow, when string is too long?

I have a for loop and what I do is this. forloop ( loop 7000 times) { x += 2000_char_long_string; } Code lasts really long time开发者_开发知识库 in this forloop, maybe more than 1 minute. How can I[详细]

2022-12-11 10:29 分类：问答
operator= (T *r) in nested templates

I have a problem concerning nested templates and the overriding of the assignment operator. Say i want to have a refcounting class template _reference. This _reference for now simply[详细]

2022-12-09 16:17 分类：问答
Is it bad form to call the default assignment operator from the copy constructor?

Consider a class of which copies need to be made.The vast majority of the data elements in the copy must strictly reflect the original, however there are select few elements whose state is not to be p[详细]

2022-12-08 03:00 分类：问答