unknown regex error

[nuderobmonkey]

terminate called after throwing an instance of 'std::regex_error'
  what():  Unexpected end of character class.

Knows someone when this error will be thrown? I have at my code all 'regex_match()' invocations within try-catch blocks, but this error will nowhere at this blocks caught.

[Peter87]

The exception is probably thrown from the std::regex constructor.

[nuderobmonkey]

Thanks, you're right, there it was. I had the std::regex objects constructed at global scope, so I couldn't use try-catch blocks.