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std::regex_error

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< cpp‎ | regex

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C++
 
Espressioni regolari libreria
Classi
Original:
Classes
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basic_regex(C++11)
sub_match(C++11)
match_results(C++11)
Algoritmi
Original:
Algorithms
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regex_match(C++11)
regex_search(C++11)
regex_replace(C++11)
Iteratori
Original:
Iterators
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regex_iterator(C++11)
regex_token_iterator(C++11)
Eccezioni
Original:
Exceptions
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regex_error(C++11)
Tratti
Original:
Traits
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regex_traits(C++11)
Costanti
Original:
Constants
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syntax_option_type(C++11)
match_flag_type(C++11)
error_type(C++11)
 
std::regex_error
Funzioni membri
Original:
Member Functions
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regex_error::regex_error
regex_error::code
 
Elemento definito nell'header <regex>
class regex_error : public std::runtime_error {

  public:
    explicit regex_error(regex_constants::error_type ecode);
    regex_constants::error_type code() const;

};
 (dal C++11)
Definisce il tipo di oggetto lanciato come eccezioni per segnalare errori dalla libreria espressioni regolari.
Original:
Defines the type of object thrown as exceptions to report errors from the regular expressions library.
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Indice

[modifica] Membri funzioni
costruisce un oggetto regex_error
Original:
constructs a regex_error object
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(metodo pubblico) [modifica]
ottiene il std::regex_constants::error_type per un regex_error
Original:
gets the std::regex_constants::error_type for a regex_error
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(metodo pubblico) [modifica]

Inherited from std::exception

Member functions

[virtuale]
distrugge l'oggetto eccezione
Original:
destructs the exception object
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(metodo pubblico virtuale) [modifica]
[virtuale]
restituisce una stringa esplicativa
Original:
returns an explanatory string
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(metodo pubblico virtuale) [modifica]

[modifica] Esempio

#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
Estratto da "https://it.cppreference.com/mwiki/index.php?title=cpp/regex/regex_error&oldid=26659"