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Subject: Re: [boost] Boost and (Microsoft's) _SECURE_SCL
From: John Maddock (boost.regex_at_[hidden])
Date: 2010-11-03 14:03:03

> Yes. VC10's linker deterministically detects IDL mismatch and emits hard
> errors, naming the offending object files. (This machinery, #pragma
> detect_mismatch, is available for anyone to use. It will also detect when
> object files using the C++ Standard Library and compiled with different
> major versions of VC are mixed together, as long as both are VC10+;
> unfortunately we can't detect mixing when VC9 or earlier is involved.)

Cool, I'll investigate adding support for that to our auto-linking header.

> Note that there are 5 possible modes:
> Release SCL=0 (now IDL=0, default in VC10)
> Release SCL=1 (now IDL=1, default in VC8/9)
> Debug HID=0 SCL=0 (now IDL=0)
> Debug HID=0 SCL=1 (now IDL=1)
> Debug HID=1 SCL=1 (now IDL=2, default in VC8/9/10)
> (The HID and SCL macros are still supported for backwards compatibility,
> but they are immediately mapped to IDL, which is what the rest of our
> headers now refer to.)

Is HID=1 SCL=0 ever possible in past versions?

Thanks, John.

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