std::regex_error
Defined in header <regex> | | |
|---|---|---|
class regex_error; | | (since C++11) |
定义抛出的异常对象类型以报告正则表达式库中的错误。
二次
二次
继承图
成员函数
(constructor) | constructs a regex_error object (public member function) |
|---|---|
code | gets the std::regex_constants::error_type for a regex_error (public member function) |
继承自STD：例外
成员函数
(destructor) virtual | destructs the exception object (virtual public member function of std::exception) |
|---|---|
what virtual | returns an explanatory string (virtual public member function of std::exception) |
例
二次
#include <regex>
#include <iostream>
int main()
{
try {
std::regex re("[a-b][a");
}
catch (const std::regex_error& e) {
std::cout << "regex_error caught: " << e.what() << '\n';
if (e.code() == std::regex_constants::error_brack) {
std::cout << "The code was error_brack\n";
}
}
}二次
产出：
二次
regex_error caught: The expression contained mismatched [ and ].
The code was error_brack二次
© cppreference.com在CreativeCommonsAttribution下授权-ShareAlike未移植许可v3.0。
本文档系腾讯云开发者社区成员共同维护，如有问题请联系 cloudcommunity@tencent.com
