std::basic_ostringstream<CharT,Traits,Allocator>::view

從 cppreference.com
std::basic_string_view<CharT, Traits> view() const noexcept;
(C++20 起)

獲得底層字符串對象上的 std::basic_string_view。等價於 return rdbuf()->view();

目錄

[編輯] 參數

(無)

[編輯] 返回值

底層字符串對象上的 std::basic_string_view

[編輯] 示例

#include <iostream>
#include <sstream>
 
int main()
{
    // 输入/输出流
    std::stringstream buf1;
    buf1 << 69;
    int n = 0;
    buf1 >> n;
    std::cout << "1) buf1 = [" << buf1.view() << "], n = " << n << '\n';
 
    // 追加模式的输出流
    std::ostringstream buf2("test", std::ios_base::ate);
    buf2 << '1';
    std::cout << "2) buf2 = [" << buf2.view() << "]\n";
 
    // 输入流
    std::istringstream inbuf("-42");
    inbuf >> n;
    std::cout << "3) inbuf = [" << inbuf.view() << "], n = " << n << '\n';
}

輸出:

1) buf1 = [69], n = 69
2) buf2 = [test1]
3) inbuf = [-42], n = -42

[編輯] 參閱

(C++20)
獲得底層字符序列上的視圖
(std::basic_stringbuf<CharT,Traits,Allocator> 的公開成員函數) [編輯]