#include<iostream>#include<thread>#include<atomic>std::atomic<long long>data;voiddo_work(){data.fetch_add(1,std::memory_order_relaxed);}intmain(){std::threadth1(do_work);std::threadth2(do_work);std::threadth3(do_work);std::threadth4(do_work);std::threadth5(do_work);th1.join(...
fetch_add(1, std::memory_order_relaxed); } int main() { std::thread th1(do_work); std::thread th2(do_work); std::thread th3(do_work); std::thread th4(do_work); std::thread th5(do_work); th1.join(); th2.join(); th3.join(); th4.join(); th5.join(); std::cout...
#include <array>#include <atomic>#include <iostream>#include <thread>std::atomic<longlong>data{10};std::array<longlong,5>return_values{};voiddo_work(intthread_num){longlongval=data.fetch_add(1,std::memory_order_relaxed);return_values[thread_num]=val;}intmain(){{std::jthreadth0{do_...
()==25)break;// unlockstd::atomic_fetch_add(&cnt,1);// pausestd::this_thread::sleep_for(1ms);}}voidwriter(){for(intn=0;n<25;++n){// lockwhile(std::atomic_fetch_sub(&cnt, N+1)!=N)std::atomic_fetch_add(&cnt, N+1);// writedata.push_back(n);std::cout<<"writer ...
其实__iob_func和__iob都是用来定义stdin,stdout,stderr，只是不同的VC版本实现方式不同。 下面...
原子操作,如fetch_add,fetch_sub,fetch_and,fetch_or,fetch_xor: 字符类型char,char8_t(自 C++20 起),char16_t,char32_t和wchar_t; 标准有符号整数类型:signed char,short,int,long和long long; 标准无符号整数类型:unsigned char,unsigned short,unsigned int,unsigned long和unsigned long long; ...
charsignedcharunsignedcharshortunsignedshortintunsignedintlongunsignedlonglonglongunsignedlonglongchar16_tchar32_twchar_textendedintegraltypes(ifany) 附加的成员函数: atomic::fetch_addatomic::fetch_subatomic::fetch_andatomic::fetch_oratomic::fetch_xoratomic::operator++atomic::operator--operator(comp.assign...
std::atomic<T>::fetch_add std::atomic<T>::fetch_sub std::atomic<T>::fetch_and std::atomic<T>::fetch_or std::atomic<T>::fetch_xor std::atomic<T>::operator++,++(int),--,--(int) std::atomic<T>::operator+=,-=,&=,|=,^= std::atomic_store, std::atomic_store_explicit st...
针对整形(integal)的特化,其中 integal 代表了如下类型char, signed char, unsigned char, short, unsigned short, int, unsigned int, long, unsigned long, long long, unsigned long long, char16_t, char32_t, wchar_t:template <> struct atomic<integral> { bool is_lock_free() const volatile; ...
针对整形(integal)的特化,其中 integal 代表了如下类型char, signed char, unsigned char, short, unsigned short, int, unsigned int, long, unsigned long, long long, unsigned long long, char16_t, char32_t, wchar_t:template <> struct atomic<integral> { bool is_lock_free() const volatile; ...