std::regex_error

 

C++

语言

概念

实用工具库

字符串库

集装箱库

算法库

迭代器库

Numerics库

输入/输出库

本地化库

正则表达式库 （C++11）

原子操作库 （C++11）

线程的支持库 （C++11）

 

正则表达式库

类 Original: Classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_regex （C++11）

sub_match （C++11）

match_results （C++11）

算法 Original: Algorithms The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

regex_match （C++11）

regex_search （C++11）

regex_replace （C++11）

迭代器 Original: Iterators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

regex_iterator （C++11）

regex_token_iterator （C++11）

例外 Original: Exceptions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

regex_error （C++11）

性状 Original: Traits The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

regex_traits （C++11）

常量 Original: Constants The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

syntax_option_type （C++11）

match_flag_type （C++11）

error_type （C++11）

 

std::regex_error

成员函数 Original: Member Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

regex_error::regex_error

regex_error::code

 

Defined in header <regex>
class regex_error : public std::runtime_error {   public:     explicit regex_error(regex_constants::error_type ecode);     regex_constants::error_type code() const; };		（C++11 起）

定义类型的对象时抛出异常来报告错误的正则表达式库.

Original:

Defines the type of object thrown as exceptions to report errors from the regular expressions library.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

成员函数

(constructor)	构造一个regex_error对象 Original: constructs a regex_error object The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
code	std::regex_constants::error_type为一个regex_error Original: gets the std::regex_constants::error_type for a regex_error The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）

Inherited from std::exception

Member functions

(destructor) [虚拟的] </ SPAN></div></div>	解构异常对象 Original: destructs the exception object The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （虚拟公有成员函数of std::exception）
what [虚拟的] </ SPAN></div></div>	返回一个说明字符串 Original: returns an explanatory string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （虚拟公有成员函数of std::exception）

</div>

为例

#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";
    }
}

Output:

regex_error caught: The expression contained mismatched [ and ].
The code was error_brack