13 May 96 00:52, Paul Edwards wrote to All:

 > int *x;
 > int y;

 > y = 3 * x;

 > y = * x;

 > y = *x;

 > Which ones do you reckon are legal?   I am wondering how mulitplication
 > and indirection are distinguished between.  Is the space significant?

The second and third are legal.  The first is illegal as it effectively evaluates to:

  y = 3 *x;

which is not a valid expression.  Any whitespace following the asterisk
dereferencing x is insignificant.

Two methods (that immediately come to mind) of performing a multiplication
on the dereferenced pointer are:

  y = 3 * (*x);  /* the brackets are probably not required, but they
                  * ease readability */

  y = *x * 3;    /* this is probably even better */

Regards
Andrew

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