Re: Increment and decrement operators

[Nick_Vrtis@xxxxxxxxx]

Here is a translation of the two statements (not exactly good syntax, but
logicall)
a[i=i+1] = a[i+1]+1;          //note that there is only 1 '=' within the
brackets, so 'i' is incremented once permanently, and once temporarily
a[i=i+1] = a[i=i+1]+1;        //note that 'i' is actually incremented twice
permanently.

Assume i=2 and a[3] = 10 going into this... we get:

a[i=2+1]=a[2+1]+1;       //a[3]=11 and i=3;
a[i=3+1]=a[i=2+1]+1;          //a[3]=10 and i=4;  a[4] may be out of bounds
if you are lucky....

Nick




"teresa garcia" <teresa_a_garcia@hotmail.com>@midrange.com on 07/10/2000
03:19:47 PM

Please respond to JAVA400-L@midrange.com

Sent by:  owner-java400-l@midrange.com


To:   JAVA400-L@midrange.com
cc:

Subject:  Increment and decrement operators


Please, please, someone please help me understand why this two expressions
are not equivalent:

a[i++]++
a[i++]=a[i++] + 1;

The books I have only state they are not equivalent, I am suppose to guess
the rest, but I don't find it trivial.

Thanks.
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