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Re: My try/catch block isn't catching exceptions on 10.6
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Re: My try/catch block isn't catching exceptions on 10.6


  • Subject: Re: My try/catch block isn't catching exceptions on 10.6
  • From: Gwynne Raskind <email@hidden>
  • Date: Sat, 28 Nov 2009 07:57:29 -0500

On Nov 28, 2009, at 4:25 AM, Greg Parker wrote:
> Here's a fun idiom for handling both C++ and Objective-C exceptions in the same place (on iPhone and 64-bit Mac).
>
>    @try {
>        // do stuff
>    } @catch (NSException *e) {
>        // NSException
>    } @catch (id e) {
>        // Other Objective-C exception
>    } @catch (...) {
>        // Non-ObjC exception
>        // Decode it by rethrowing it inside a C++ try/catch.
>        try {
>            @throw;
>        } catch (std::bad_cast& e) {
>            // C++ failed dynamic cast to reference type
>        } catch (...) {
>            // Other C++ exception
>            // or non-ObjC non-C++ foreign exception
>        }
>    }


I apologize if this is a dense question, but can't you just go like this?

   @try {
       // do stuff
   } @catch (NSException *e) {
       // NSException
   } @catch (id e) {
       // Other Objective-C exception
   } @catch (std::bad_cast& e) {
       // C++ failed dynamic cast to reference type
   } @catch (...) {
       // Other C++ exception
       // or non-ObjC non-C++ foreign exception
   }

-- Gwynne

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  • Follow-Ups:
    • Re: My try/catch block isn't catching exceptions on 10.6
      • From: Kai BrĂ¼ning <email@hidden>
References: 
 >My try/catch block isn't catching exceptions on 10.6 (From: Mark Allan <email@hidden>)
 >Re: My try/catch block isn't catching exceptions on 10.6 (From: Graham Cox <email@hidden>)
 >Re: My try/catch block isn't catching exceptions on 10.6 (From: Matt Gough <email@hidden>)
 >Re: My try/catch block isn't catching exceptions on 10.6 (From: Greg Parker <email@hidden>)

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