Yet another one

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1 total messages Started by Rik Tue, 11 Aug 1992 20:09

#923

Author: Rik
Date: Tue, 11 Aug 1992 20:09

23 lines
997 bytes

>From Reference manual r.13.4.7  Increment & decrement :

class X {
   public: X operator++() { a=2 ; return *this ;} 
           X operator++(int) { a=5 ; return *this ;}
           int a ;
};

main () {
   X var ;
   ++var ;
   printf("%d\n",var.a) ;
   var++ ;
   printf("%d\n",var.a) ;
}

Prints 2 twice. Replace the postincrement call var++ with var.operator++(0)
and it works.

> Richard Eyre-Todd.  Department of Computer Science, University of Edinburgh.

> Email: ret@uk.ac.ed.dcs                     | Solid fuel is for camp-fires,
> or     ret%dcs.ed.ac.uk@nsfnet-relay.ac.uk  | not boosting Space Shuttles. :-)

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