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elision    
n. 元音省略

母音省略

elision
n 1: omission of a sound between two words (usually a vowel and
the end of one word or the beginning of the next)
2: a deliberate act of omission; "with the exception of the
children, everyone was told the news" [synonym: {exception},
{exclusion}, {elision}]


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英文字典中文字典相关资料:


  • What are copy elision and return value optimization?
    Copy elision is an optimization implemented by most compilers to prevent extra (potentially expensive) copies in certain situations It makes returning by value or pass-by-value feasible in practice (restrictions apply)
  • c++ - Conditions for copy elision? - Stack Overflow
    However, copy elision is not performed for the assignment operator and when calling PassByValue Is copy elision not allowed on user defined copy-constructors? (I know that RVO is explicitly allowed by the standard but I don't know about copy elision when passing by value ) Is there a way to verify copy elision without defining copy constructors?
  • c++ - std::move versus copy elision - Stack Overflow
    The hint is still correct though, since std::move on a temporary either doesn't have any effect at all (as here) or prevents elision if used in a context where copy elision would otherwise be allowed mandatory, for example if this was the initializer of m_thread instead of an assignment to it
  • c++ Moving a temporary object prevents copy elision (fix available . . .
    Moving a temporary object prevents copy elision (fix available)clang(-Wpessimizing-move) I am using clang-14 and vscode, vscode's quick fix let me delete std::move, but why? As far as i know, unique_ptr can't be passed as a parameter directly
  • c++ - Copy constructor elision? - Stack Overflow
    Yes this is copy elision through Named Return Value Optimization The C++ standard allows an implementation to omit a copy operation resulting from a return statement, even if the copy constructor has side effects Reference: C++03 Standard: 12 8 Copying class objects: # 15
  • What is copy elision and how does it optimize the copy-and-swap idiom?
    If copy elision were not allowed, that line would require 3 invocations of the copy constructor and an associated call to a destructor With copy elision being allowed, it can be reduced to 1 call of the copy constructor, the explicit one inside of BigCount::next() where newcounter is declared If operator = had been declared and defined like this:
  • c++ - polymorphic unique_ptr copy elision - Stack Overflow
    Copy elision (before C++17) always requires the elided constructor to be actually accessible, so it cannot be the cause of your code working Note, however, that C++ (since C++11) has a rule (12 8 32) which boils down to the following: "when returning an object, then under certain circumstances, first try treating the object as an rvalue and
  • Does guaranteed copy elision work with function parameters?
    No elision occurs, no copy constructor or move constructor is called, just () Stuff then happens inside myfunc myfunc returns a prvalue of type Foo This prvalue (aka construction instructions) is used to construct the local variable auto foo So what happens here is that a Foo is constructed via (), then moved into auto foo





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