24.14 Regular Expressions with the regex Library

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Regular expressions are specially formatted strings that are used to find patterns in text. They can be used to validate data to ensure that it is in a particular format. For example, a zip code must consist of five digits, and a last name must start with a capital letter.

The regex library (from header <regex>) provides several classes and algorithms for recognizing and manipulating regular expressions. Class template basic_regex represents a regular expression. The algorithm regex_match returns true if a string matches the regular expression. With regex_match, the entire string must match the ...

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