定义于头文件 <memory> std::pointer_safety get_pointer_safety() noexcept; (C++11 起) 获得实现定义的指针安全模式,它是 std::pointer_safety 类型的值。 参数(无) 返回值此实现所用的 pointer_safety 。 参阅pointer_safety (C++11) 列出指针安全模式 (枚举) ...
pointer_safety::preferred All pointers are considered valid and may be dereferenced or deallocated. A reachability-based leak detector may be active. pointer_safety::relaxed All pointers are considered valid and may be dereferenced or deallocated. See also get_pointer_safety (C++11)(removed in ...
The pointer safety used by this implementation. Example Run this code #include <iostream>#include <memory>intmain(){std::cout<<"Pointer safety: ";switch(std::get_pointer_safety()){casestd::pointer_safety::strict:std::cout<<"strict\n";break;casestd::pointer_safety::preferred:std::cout<...
std::pointer_safety std::pointer_to_binary_function std::pointer_to_unary_function std::pointer_traits std::ptrdiff_t std::ptr_fun std::quick_exit std::raise std::range_error std::rank std::rbegin(std::initializer_list) std::realloc std::ref std::reference_wrapper std::reference_wrappe...
std::pointer_safety std::pointer_to_binary_function std::pointer_to_unary_function std::pointer_traits std::ptrdiff_t std::ptr_fun std::quick_exit std::raise std::range_error std::rank std::rbegin(std::initializer_list) std::realloc std::ref std::reference_wrapper std::reference_wrappe...
std::pointer_safety std::pointer_to_binary_function std::pointer_to_unary_function std::pointer_traits std::ptrdiff_t std::ptr_fun std::quick_exit std::raise std::range_error std::rank std::rbegin(std::initializer_list) std::realloc std::ref std::reference_wrapper std::reference_wrappe...
std::pointer_safety std::pointer_to_binary_function std::pointer_to_unary_function std::pointer_traits std::ptrdiff_t std::ptr_fun std::quick_exit std::raise std::range_error std::rank std::rbegin(std::initializer_list) std::realloc std::ref std::reference_wrapper std::reference_wrappe...
In case of functiong, however, the use ofstd::optionalmakes it explicit that it handles the lack of values gracefully. Therefore, while we tend to not warn on pointer parameters that don’t have null checks, we will warn on unwrappingstd::optionals that might be empty. Unfortunately...
在上述代码中,new int(5)是一个原始指针,被std::shared_ptr构造函数封装。在口语交流中,我们可以将其解释为 “Instantiate a shared_ptr that wraps a raw pointer to an integer initialized to 5.”(实例化一个封装了指向初始化为5的整数的原始指针的shared_ptr)。
optional: __STDC__ __STDC_VERSION__ __STDC_MB_MIGHT_NEQ_WC__ __STDC_ISO_10646__ __STDCPP_STRICT_POINTER_SAFETY__ __STDCPP_THREADS__ Example of use non standard macros (compiler specific) in Blade: 1/***2created: 2009/02/073filename: Platform.h4author: Crazii56purpose: the plat...