std::regex expressions in C++ [duplicate]

Question

I am trying to use really straightforward regular expressions to match strings like 2001M12. I create a std::regex object as follows:

std::regex gretlMonth("^[:d:]{4}M[:d:]{2}$");

but I get the following runtime exception on this line:

unknown location(0): fatal error in "Plot_GuessesTimeFormat": std::runtime_error: regex_error

What am I doing wrong?

Community · Accepted Answer · 2017-05-23 11:56:31Z

3

If you're using gcc, libstdc++ has not yet implemented regex.

See also:

CommunityBot

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answered Jul 4, 2013 at 16:01

OmnipotentEntity

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2 Comments

Crap! Is this functionality also available in boost?

Yes. It's available in either boost or libc++ (from clang)

tfzxyinhao · Accepted Answer · 2013-07-04 16:07:31Z

0

maybe your regex string is incorrect and try this "^\d{4}M\d{2}$".

answered Jul 4, 2013 at 16:07

tfzxyinhao

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