Re: [Plib-users] problem with fnt and release mode

[Steve B. <sjb...@ai...>]

Paul Bleisch wrote:
> 
> More than likely it is either "global optimizations" or "assume
> no aliasing".  These two cause the most problems.

Yikes!

Does "assume no aliasing" mean "assume no pointer aliasing" ??

If so, then you'll want to turn off that sucker - bury it *DEEP*!

int x = 6 ;
int y ;

int *a ;
int *b ;

  a = & x ;
  b = & x ;

...then later on...

  *a = 1234 ;
  *b = 0 ;
  y = *a ;
  printf ( "%d\n", y ) ;

...will probably print 1234 with a compiler that assumes there
is no pointer aliasing.

It's hard to imagine any piece of software of any complexity
surviving that kind of punishment.
  
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