我已重定向cin"以从文件流中读取cin.rdbug(inF.rdbug())当我使用提取运算符时，它会一直读取直到遇到一个空白字符.
I've redirected "cin" to read from a file stream cin.rdbug(inF.rdbug())
When I use the extraction operator it reads until it reaches a white space character.
是否可以使用其他分隔符?我浏览了 cplusplus.com 中的 api，但没有找到任何东西.
Is it possible to use another delimiter? I went through the api in cplusplus.com, but didn't find anything.
可以更改 cin 或任何其他std::istream，使用std::ios_base::imbue 添加自定义 ctype facet.
如果您正在读取/etc/passwd 样式的文件，以下程序将分别读取每个 :-分隔的单词.
If you are reading a file in the style of /etc/passwd, the following program will read each :-delimited word separately.
#include <locale>
#include <iostream>
struct colon_is_space : std::ctype<char> {
colon_is_space() : std::ctype<char>(get_table()) {}
static mask const* get_table()
{
static mask rc[table_size];
rc[':'] = std::ctype_base::space;
rc['
'] = std::ctype_base::space;
return &rc[0];
}
};
int main() {
using std::string;
using std::cin;
using std::locale;
cin.imbue(locale(cin.getloc(), new colon_is_space));
string word;
while(cin >> word) {
std::cout << word << "
";
}
}
这篇关于更改 cin (c++) 的分隔符的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持跟版网！