basic_fstream( const basic_fstream& rhs) = delete; (7) (since C++11) 构造新的文件流。 1%29默认构造函数:构造与文件无关的流:默认构造std::basic_filebuf并使用指向此默认构造的指针构造基。std::basic_filebuf会员。 2-3%29首先执行与默认构造函数相同的步骤,然后通过
std::basic_fstream<unsigned char>是C++标准库中的一个模板类,用于进行文件的输入输出操作。它的模板参数unsigned char表示文件中的数据类型为无符号字符。 在Linux上无法运行std::basic_fstream<unsigned char>的原因可能是由于编译器或库的兼容性问题。在Linux系统中,C++标准库通常使用std::fstream来进行文...
此函数为 basic_fstream 的析构函数在流对象离开作用域时调用,通常不直接调用。 示例运行此代码 #include <string> #include <fstream> #include <iostream> int main() { std::fstream f1("example1", std::ios::out), f2("example2", std::ios::out), f3("example3", std::ios::out); std::...
std::fstream std::basic_fstream<char> std::wfstream std::basic_fstream<wchar_t> Member types Member type Definition char_type CharT traits_type Traits; the program is ill-formed if Traits::char_type is not CharT. int_type Traits::int_type pos_type Traits::pos_type off_type Tr...
bug1: 在定义print函数的时候,文件输出流没有定义成引用导致以下报错: use of deleted function ‘std::basic_fstream<_CharT, _Traits>::basic_fstream(conststd::basic_fstream<_CharT, _Traits>&) [with _CharT =char; _Traits =std::char_traits<char>]’ ...
std::swap(std::basic_fstream) template<classCharT,classTraits> voidswap(basic_fstream<CharT, Traits>&lhs, basic_fstream<CharT, Traits>&rhs); Specializes thestd::swapalgorithm forstd::basic_fstream. Exchanges the state oflhswith that ofrhs. Effectively callslhs.swap(rhs). ...
#include <fstream> #include <iostream> #include <string> int main() { std::fstream f1("example1", std::ios::out), f2("example2", std::ios::out), f3("example3", std::ios::out); std::cout << std::boolalpha << f1.is_open() << '\n' << f2.is_open() << '\n' <...
basic_osyncstream (C++20) Types streamoff streamsize fpos Error category interface iostream_category (C++11) io_errc (C++11) std::basic_fstream Member functions basic_fstream::basic_fstream basic_fstream::operator= (C++11) basic_fstream::swap ...
basic_ofstream std::basic_ofstream 在标头<fstream>定义 template< classCharT, classTraits=std::char_traits<CharT> >classbasic_ofstream:publicstd::basic_ostream<CharT, Traits> 类模板basic_ofstream实现文件上基于流的高层输出操作。它将std::basic_ostream的高层接口赋予基于文件的流缓冲(std::basic_filebuf...
#include <fstream> #include <iostream> int main() { std::cout.put('a'); // 正常用法 std::cout.put('\n'); std::ofstream s("/does/not/exist/"); s.clear(); // 假装流是好的 std::cout << "Unformatted output: "; s.put('c'); // 这将设置 badbit ,但非 failbit std::cout...