WebMar 10, 2024 · D99895 provides a Test Ready to Eat for the nodiscardness of bit_cast; once it's landed, you should be able to just rebase, uncomment that test, and add bit_cast to the appropriate list in UsingLibcxx.rst. ldionne marked 4 inline comments as done. Jul 23 2024, 12:10 PM ldionne added inline comments. ldionne updated this revision to Diff 361296. WebThe __builtin_bit_cast function is available only in C++. The built-in is intended to be used by implementations of the std::bit_cast C++ template function. Programs should make use of the latter function rather than invoking the built-in directly.
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Webstd:: bit_cast. 通过转译 from 的对象表示获得 To 类型值。. 返回的 To 对象值表示中的每位都等于 from 的对象表示中的对应位。. 返回的 To 对象中的填充位的值未指定。. 若无 To 类 … WebA `bit_cast ()` might be needed when you // need to treat a value as the value of some other type, for example, to access // the individual bits of an object which are not normally accessible through // the object's type, such as for working with the binary representation of a // floating point value: // // float f = 3.14159265358979; condo for sale in stratford ct
Aliasing accesses through a std::bit_cast ()ed pointer
Web2 days ago · reinterpret_cast&>(pShDer)->Func(); // ok Undefined behavior. You are instructing the compiler to treat a glvalue to a shared_ptr as if it was a glvalue to a shared_ptr.Member access through a type that isn't similar (i.e. differs only in const-qualifications) to the actual type of the referenced object causes … WebThis page was last modified on 5 October 2024, at 14:26. This page has been accessed 132,727 times. Privacy policy; About cppreference.com; Disclaimers std:: bit_cast. Obtain a value of type To by reinterpreting the object representation of From. Every bit in the value representation of the returned To object is equal to the corresponding bit in the object representation of from. The values of padding bits in the returned To object are unspecified. See more To implement std::bit_cast, std::memcpycan be used, when it is needed, to interpret the object representation as one of another type: See more reinterpret_cast (or equivalent explicit cast) between pointer or reference types shall not be used to reinterpret object representation in most cases because of the … See more The following behavior-changing defect reports were applied retroactively to previously published C++ standards. See more condo for sale in sun city west