#include <iostream>#include <sstream>#include <string>intmain(){// greet the userstd::stringname;std::cout<<"What is your name? ";std::getline(std::cin, name);std::cout<<"Hello "<<name<<", nice to meet you.\n";// read file line by linestd::istringstreaminput;input.str("1...
cppreference.com 创建账户 页面 讨论 变换 查看 编辑 历史 std::getlineC++ 字符串库 std::basic_string 在标头 <string> 定义 template< class CharT, class Traits, class Allocator > std::basic_istream<CharT, Traits>& getline( std::basic_istream<CharT, Traits>& input, std::basic_string<...
— C++中get和getline的区别 在日常的编程练习中读写文件是再平常不过的场景了,虽然这算是基础中的基础了,但以前用起来总是不求甚解,有时用get有时用getline,几乎每次都是面向搜索引擎编程+能跑就行+过后就忘。。。这次整理了二者的用法和区别(其实就是抄了一下cppreference),希望加深理解,以后用的时候能信手...
下个可用字符c是以Traits::eq(c, delim)确定的分隔符。提取该分隔符(与basic_istream::get()不同)并计入gcount(),但不存储它。 count非正,或者已经提取了count-1个字符(此时会调用setstate(failbit))。 如果函数没有提取字符,那么在调用setstate()前就会在局部错误状态中设置failbit。
cppreference.com Create account Page Discussion Standard revision: View Edit History std::basic_istream<CharT,Traits>::getlineC++ Input/output library std::basic_istream basic_istream& getline( char_type* s, std::streamsize count ); (1) basic_istream& getline( char_type* s, std::...
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std::getline - cppreference.com 通过以上方法,你应该能够解决std::getline调用不起作用的问题。如果问题仍然存在,请检查是否有其他代码影响了输入流的状态。 页面内容是否对你有帮助? 有帮助 没帮助 相关·内容 文章(9999+) 问答(9999+) 视频(4)
然后回到问题本身，我的答案是「没必要」。反复读入巨型字符串的场景一般都是 IO，内存操作的性能开销在...
来自注释部分https://en.cppreference.com/w/cpp/string/basic_string/getline When consuming whitespace-delimited input (e.g. int n; std::cin >> n;) any whitespace that follows, including a newline character, will be left on the input stream. Then when switching to line-oriented input, the...
API Reference Document getline, getwline, getdelim, getwdelimC Technical Specifications Dynamic memory extensions Defined in header <stdio.h> ssize_t getline(char **lineptr, size_t *n, FILE *stream); (1) (dynamic memory TR) ssize_t getwline(wchar_t **lineptr, size_t *n, FILE *...