feature eh-model question

From: Patrick Frants (gclbb-jamboost_at_[hidden])
Date: 2002-08-27 03:17:08

Hi,

I found the eh-model feature and it was apparently added for the Metroworks 
compiler. 

feature eh-model : default fast msvc ; # metrowerks only

One of the possible values is now msvc, but the msvc compiler has at least 
two different exception handling models (sync and async). The problem is 
that this qualification is different from default <-> fast, therefore 
splitting the msvc value into sync and async (or msvc-sync, msvc-async) is 
a bit strange, but it gives the possibility of choosing the exception 
handling model. Of course I could also implement it in my own toolset.

Patrick

The MSVC 6 documentation for the /EH flag:

/EH{s|a}[c][-]

This option specifies the model of exception handling to be used by the 
compiler. 

Use /EHs to specify the synchronous exception handling model.

Use /EHa to specify the asynchronous exception handling model. 
The /EHc option requires that /EHs, /EHa, or /GX is specified. It tells the 
compiler to assume that extern C functions never throw an exception.

The option can be cleared by the symbol “-”. For example: /EHsc- is 
interpreted as /EHs /EHc- , and is equivalent to /EHs.

-- 
Patrick Frants
Senior Software Engineer
Quintiq
mailto:patrick_at_[hidden]
www.quintiq.com