std::basic_ostringstream<CharT,Traits,Allocator>::view
来自 cppreference.com
< cpp | io | basic ostringstream
| std::basic_string_view<CharT, Traits> view() const noexcept; |
(自 C++20 起) | |
获取对基础字符串对象的 std::basic_string_view 视图。等效于 return rdbuf()->view();.
内容 |
[编辑] 参数
(无)
[编辑] 返回值
对基础字符串对象的 std::basic_string_view 视图。
[编辑] 示例
运行此代码
#include <iostream> #include <sstream> int main() { // input/output stream std::stringstream buf1; buf1 << 69; int n = 0; buf1 >> n; std::cout << "1) buf1 = [" << buf1.view() << "], n = " << n << '\n'; // output stream in append mode std::ostringstream buf2("test", std::ios_base::ate); buf2 << '1'; std::cout << "2) buf2 = [" << buf2.view() << "]\n"; // input stream std::istringstream inbuf("-42"); inbuf >> n; std::cout << "3) inbuf = [" << inbuf.view() << "], n = " << n << '\n'; }
输出
1) buf1 = [69], n = 69 2) buf2 = [test1] 3) inbuf = [-42], n = -42
[编辑] 另请参阅
| (C++20) |
获取对基础字符序列的视图 ( std::basic_stringbuf<CharT,Traits,Allocator> 的公有成员函数) |
