std::stoi,std::stol,std::stoll Defined in header<string> intstoi(conststd::string&str, std::size_t*pos=nullptr,intbase=10); (1)(since C++11) intstoi(conststd::wstring&str, std::size_t*pos=nullptr,intbase=10); (2
int stoi( const std::string& str, std::size_t* pos = 0, int base = 10 );int stoi( const std::wstring& str, std::size_t* pos = 0, int base = 10 );(1) (C++11 起)long stol( const std::string& str, std::size_t* pos = 0, int base = 10 );long stol( const std:...
<< '\n'; } // simple non-member function returning int int f1() { return 007; } // function with an exception specification and a function try block int f2(std::string str) noexcept try { return std::stoi(str); } catch (const std::exception& e) { std::cerr << "stoi() fai...
{std::cout<<"ctor1 called, data = "<<data<<'\n';}// this constructor has a catch clauseS::S(std::stringstr)try:data(std::stoi(str)){std::cout<<"ctor2 called, data = "<<data<<'\n';}catch(conststd::exception&){std::cout<<"ctor2 failed, string was '"<<str<<"'\n"...
erase(std::basic_string)erase_if(std::basic_string) (C++20)(C++20) I/O operator<<operator>> getline Comparison operator==operator!=operator<operator>operator<=operator>=operator<=> (until C++20)(until C++20)(until C++20)(until C++20)(until C++20)(C++20) Numeric conversions stoistolstoll...
std::stringstd::basic_string<char> std::wstringstd::basic_string<wchar_t> std::u16stringstd::basic_string<char16_t> std::u32stringstd::basic_string<char32_t> Mitglied Typen Mitglied Typ Original: Member type The text has been machine-translated viaGoogle Translate. ...
std::basic_string Defined in header<string> std::stringto_string(intvalue); (1)(since C++11) std::stringto_string(longvalue); (2)(since C++11) std::stringto_string(longlongvalue); (3)(since C++11) std::stringto_string(unsignedvalue); ...
int val1 = 123, val2 = 456; string str1("123"), str2(456); auto func1 = [=, &str1]() -> int { return val1 == std::stoi(str1) ? val1 : val2; }; auto func2 = [&, val1]() -> int { return str1 == std::to_string(val1) ? str1 : str2; }; () 是参数...
int val1 = 123, val2 = 456; string str1("123"), str2(456); auto func1 = [=, &str1]() -> int { return val1 == std::stoi(str1) ? val1 : val2; }; auto func2 = [&, val1]() -> int { return str1 == std::to_string(val1) ? str1 : str2; }; () 是参数...
g++编译选项:-std=c++11。包含头文件: #include <thread>:C++多线程库 #include <mutex>:C++互斥量库 #include <future>:C++异步库 线程的创建 以普通函数作为线程入口函数: void entry_1() { } void entry_2(int val) { } std::thread my_thread_1(entry_1); std::thread my_thread_2(entry_2,...