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[re.badexp]

28 Text processing library [text]

28.6 Regular expressions library [re]

28.6.5 Class regex_error [re.badexp]

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namespace std {class regex_error : public runtime_error {public:explicit regex_error(regex_constants::error_type ecode); regex_constants::error_type code() const; };}

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The class regex_error defines the type of objects thrown as exceptions to report errors from the regular expression library.

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regex_error(regex_constants::error_type ecode);

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Postconditions: ecode == code().

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regex_constants::error_type code() const;

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Returns: The error code that was passed to the constructor.