I think this is a good question.
I'm not quite sure that casting dval to long is the same as multiplying the
two longs.
Anyone know the answer?
Andi
At 02:28 PM 7/31/2002 +0200, Stefan Esser wrote:
>Hi,
>
>Could someone tell me why the Zend Engine calculates every multiplication
>2 times???
>
>zend_operators.c:
>
>ZEND_API int mul_function(zval *result, zval *op1, zval *op2 TSRMLS_DC)
>{
>...
> if (op1->type == IS_LONG && op2->type == IS_LONG) {
> double dval = (double) op1->value.lval * (double)
> op2->value.lval;
>
> if ((dval > (double) LONG_MAX) || (dval < (double)
> LONG_MIN)) {
> result->value.dval = dval;
> result->type = IS_DOUBLE;
> } else {
> result->value.lval = op1->value.lval *
> op2->value.lval;
> result->type = IS_LONG;
> }
> return SUCCESS;
>
>...
>
>should that be replaced with:
>
>result->value.lval = (long)dval;
>
>instead of calculating the multiplication again???
>
>
>Stefan Esser
>
>
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