Summary: nothrow check can't handle multiple catches
--- Comment #0 from Jonathan M Davis <jmdavisp...@gmx.com> 2010-10-01 20:55:33
This code should compile:
class MyException : Exception
throw new MyException;
void cantthrow() nothrow
It doesn't. Instead, you get this error:
d.d(14): Error: function d.cantthrow 'cantthrow' is nothrow yet may throw
If you remove catch(MyException e) and its body, then the program compiles.
Given that the catch block that catches MyException cannot throw an exception
of its own and that the catch block following it catches Exception (and
therefore will catch all exceptions) and cannot throw an exception, the
compiler should be able to clearly determine that no exception can escape
cantthrow, but apparently, it can't.
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