std::regex_error

 

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std::regex_error

Member functions

regex_error::regex_error

regex_error::operator=

regex_error::code

 

Defined in header <regex>
class regex_error;		(since C++11)

Defines the type of exception object thrown to report errors in the regular expressions library.

Inheritance diagram

Member functions

(constructor)	constructs a regex_error object (public member function)
operator=	replaces the regex_error object (public member function)
code	gets the std::regex_constants::error_type for a regex_error (public member function)

Inherited from std::runtime_error

Inherited from std::exception

Member functions

(destructor) [virtual]	destroys the exception object (virtual public member function of std::exception)
what [virtual]	returns an explanatory string (virtual public member function of std::exception)

Example

Run this code

#include <iostream>#include <regex>   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";}}

Possible output:

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