{ int_t, float_t } type; template<typename Integer, std::enable_if_t<std::is_integral<Integer>::value, bool> = true> T(Integer) : type(int_t) {} template<typename Floating, std::enable_if_t<std::is_floating_poin
std::cout << "vector(size_t len, Type val)" << std::endl; } /** * 相对于cpp11更加简洁的写法 * 同时第二个模板参数没有具体使用到,可以省略成一个匿名形式 */ template <typename Iter, typename = typename std::enable_if_t<!std::is_integral_v<Iter>>> vector(Iter begin, Iter end)...
#include <iostream> template<typename T> std::ostream& operator<<(typename std::enable_if<std::is_enum<T>::value, std::ostream>::type& stream, const T& e) { return stream << static_cast<typename std::underlying_type<T>::type>(e); } 这时,下面的代码将能够被编译: ...
// test.h #include <iostream> using std::cout; class Base{ int a; void fun_a(){a=1;} public: void fun_b(); virtual void fun_c(); }; //test.cpp #include "test.h" void Base::fun_b(){ cout << "aaa\n"; } void Base::fun_c(){ cout << "virtual.\n"; } 重新make...
17publicstd::enable_shared_from_this<DialerImpl>{18public:19~DialerImpl()override=default;2021DialerImpl(std::shared_ptr<protocol_muxer::ProtocolMuxer>multiselect,22std::shared_ptr<TransportManager>tmgr,23std::shared_ptr<ConnectionManager>cmgr,24std::shared_ptr<ListenerManager>listener,25std::...
ThreadPool is used as a default task queue, and the default thread count is 8, or std::thread::hardware_concurrency(). You can change it with CPPHTTPLIB_THREAD_POOL_COUNT.If you want to set the thread count at runtime, there is no convenient way... But here is how....
This will declare a 16.16 fixed point number. Operators are provided though the use of boost::operators. multiplication and division are implemented in free functions namednumeric::multiplyandnumeric::dividewhich usestd::enable_ifto choose the best option. If a larger type is available, it will...
C++ Annotated September 2021: Papers Voted Into C++23, enable_if vs. requires Benchmarks, More on ABI Breakage, and CppCon Program Papers voted into C++23, enable_if vs requires benchmark, discussions around ABI break, SonarLint plugin for CLion, and CppCon Program. ...
1)Equivalent tostd::print(stdout, fmt,std::forward<Args>(args)...). 2)If theordinary literal encodingis UTF-8, equivalent to(std::enable_nonlocking_formatter_optimization<std::remove_cvref_t<Args>>&&...) ?std::vprint_unicode(stream, fmt.str,std::make_format_args(args...)) ...
#include<iostream>struct foo{__attribute__((visibility("default")))staticvoidprint_addr(){__attribute__((visibility("default")))staticfoo inst;inst.print();std::cout<<"print_addr address: "<<foo::print_addr<<std::endl;}voidprint(){std::cout<<"Instance address: "<<this<<std::endl...