pass by name

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Clause 20: Prefer to replace pass-by-value with Pass-by-reference-to-const

Key points of this article:1, try to replace Pass-by-value with Pass-by-reference-to-const. The former is more efficient and can avoid cutting problems.2. This rule does not apply to both the built-in type and the iterator and function object types

Effective C + + ' ning to pass-by-reference-to-const replace Pass-by-value '

Effective C + + ' ning to pass-by-reference-to-const replace Pass-by-value 'By default, C + + passes an object to a function by value (a way that inherits from C). Unless you specify otherwise, the function parameter is the initial value of the

Effective C + + ' ning to pass-by-reference-to-const replace Pass-by-value '

Effective C + + ' ning to pass-by-reference-to-const replace Pass-by-value 'By default, C + + passes an object to a function by value (a way that inherits from C). Unless you specify otherwise, the function parameter is the initial value of the

C + + to replace pass-by-value (pass-by-reference-to-const)---"effecitive C + +" __c++

clause 20: Prefer to replace pass-by-value with Pass-by-reference-to-const By default, C + + passes objects to (or from) functions in by value, a way that inherits from C. Unless you specify otherwise, the function arguments are based on the actual

Effective C + +: regulation 20: ning Pass-by-reference-to-const Replacement Pass-by-value

AAssuming that the parameter is passed when the function is called pass-by-value, then the function's argument is based on the actual parameter of the copy of the original value, called, and also gets a copy of the end value returned by the function.

Negative tive C ++ Clause 20: replace pass-by-reference-to-const with pass-by-value

Key points: Try to replace pass-by-reference-to-const with pass-by-value. This is usually more efficient and avoids the problem of object cutting when the subclass object is copied to the base class. Pass-by-value should be used for the internal

Negative tive C ++: Clause 20: Choose pass-by-reference-to-const to replace pass-by-value

(1) If the pass-by-value parameter is passed when a function is called, the function parameters take the actual copy of the real parameter as the initial value, and the call end obtains a replica of the function return value. See the following code:

[Translation] effective C ++, 3rd edition, item 20: replace pass-by-reference-to-const (passed to const reference) with pass-by-value (

Item 20: replace pass-by-value with pass-by-reference-to-const (Transfer const reference) By Scott Meyers Translator: fatalerror99 (itepub's nirvana) Release: http://blog.csdn.net/fatalerror99/ By default, C ++ uses the by Value Method to pass in

Negative tive C ++ Clause 20: replace pass-by-reference-to-const with pass-by-Value

By default, C ++ uses the by Value Method to pass the object (or from) function. The function parameter is the initial value of the copy of the real parameter, and the result obtained by the function is also a copy of the function return value.

Whether the Java Call Function pass parameter is a value pass or a reference pass

Looking at the public number on Java technology today, I saw a question about the transfer of values in Java, and the article discusses whether it is a value pass or a reference to a question that will be asked when a function is called in Java.

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