Re: [boost] enum / string translation

Subject: Re: [boost] enum / string translation
From: Stewart, Robert (Robert.Stewart_at_[hidden])
Date: 2009-07-27 10:54:32

Fatih wrote:
>
> I'm very interesting in this problem ,I think it's very hard
> to implement
> the string to enum translation at compile time,  I have no
> ideas about it,
> wish you can work it out.

It is not difficult, though it requires registering the string against the value in a map during runtime initialization.  (We use a library initialization mechanism, called from main(), to trigger such initialization.)

I've had code, plus simplifying macros, for years that creates an enumerated type within a class named by the caller so that the enumerators are scoped.  As part of that, there is support for enumerator-to-string and string-to-enumerator mapping by virtue of registration calls which can map the enumerator to the stringized form (thanks to the preprocessor) or a supplied long name.  (The stringized form is mapped, too, in the latter case.)

Enum classes solve the scoping part of my solution, of course.

_____
Rob Stewart                           robert.stewart_at_[hidden]
Software Engineer, Core Software      using std::disclaimer;
Susquehanna International Group, LLP  http://www.sig.com

IMPORTANT: The information contained in this email and/or its attachments is confidential. If you are not the intended recipient, please notify the sender immediately by reply and immediately delete this message and all its attachments. Any review, use, reproduction, disclosure or dissemination of this message or any attachment by an unintended recipient is strictly prohibited. Neither this message nor any attachment is intended as or should be construed as an offer, solicitation or recommendation to buy or sell any security or other financial instrument. Neither the sender, his or her employer nor any of their respective affiliates makes any warranties as to the completeness or accuracy of any of the information contained herein or that this message or any of its attachments is free of viruses.