Re: [boost] Re: Re: Threads & Exceptions

From: Victor A. Wagner, Jr. (vawjr_at_[hidden])
Date: 2002-08-12 02:19:54

At Sunday 2002/08/11 15:30, you wrote:
[deleted]
                try
>>                 {
>>                         main(argc, 0);
>
>Results in undefined behavior.  You're not allowed to call 
>main().  Anything that happens next means nothing.
>
>>                 }
>>                 catch (exception& e)
>>                 {
>>                         cout << setw(2*argc) << ' ' << "exception: " << 
>> argc << " " << e.what() << endl;
>>                 }
>>                 cout << setw(2*argc) << ' ' << "returned from main: " << 
>> argc << endl;
>>         }
>>         if (argc > 2)
>>         {
>>                 throw exception(("throwing: " + 
>> boost::lexical_cast<string>(argc)).c_str());
>>         }
>>         cout << setw(2*argc) << ' ' << "returning: " << argc << endl;
>>}
>
>I'm not sure what you were trying to illustrate with this code... but the 
>use of illegal C++ would seem to make anything you observe irrelavant.

that you do NOT want to implement any form of exception passing across 
thread boundaries is pellucidly clear.
Why don't you just say "I don't want to...and I wont!" and  let it go at 
that.  Then we can all save some time.

btw, why the heck is it "legal" for you to "start a thread" executing at 
main() but NOT legal to "call" main()?
I know, I know, the "standard" says you can't call main(). (as you report).

You certainly bandy about the old standard when it suits your purpose and I 
believe you have mis-read it miserably in an attempt to justify a poor 
decision on your part (not allowing exceptions to be passed back).

>Bill Kempf
>williamkempf_at_[hidden]

Victor A. Wagner Jr.      http://rudbek.com
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