On Nov 10, 2011, at 9:40 AM, Iain Sandoe wrote:
> Thanks for catching that --- brainstorm on my part ... the code under 
> discussion should have been #ifndef OBCPLUS

There is no prohibition against C having exceptions, so, doesn't matter if you 
turn C++ off, you can still throw through C code, so turning on exceptions is 
reasonable.

> Moreover, there is no personality routine in m32 NeXT libobjc, so if one 
> tries to engage the zero-cost exceptions, one gets a link error (and 
> generates a load of unused eh data).  I can work around that if there is 
> still reason to have "-fexceptions" on.

No, this must be wrong:

$ cat t.c
void bar() {
}

void foo() {
  bar();
}


int main() {
  return 0;
}
$ gcc -fexceptions t.c
$ gcc -m32 -fexceptions t.c
$ 

Like I said, it does work, one can count on it working and it is useful, you 
can't break it.  And next week, they'll add catching and throwing to C, and 
when they do, it still has to just work.  :-)

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