conditional expression evaluati
Johnathan Tainter
jtr485 at umich.UUCP
Thu Jan 22 01:54:58 AEST 1987
In article <102600001 at datacube>, stephen at datacube.UUCP writes:
>> x = (a | b | c);
>> if the variable `a' contains zero, the compiler must still OR the
>> contents of `b' and `c' to determine the result. These are bitwise
>> logical operators. Short-circuiting these makes no more sense than
>> short-circuiting a sequence of multiplies as soon as one of the
>> operands evaluates to `1'.
>> Mike McNally Digital Lynx Inc.
> This posting indicates a misunderstanding of how short-circuit evaluation
> works. In the case of the '|' expression above, the decision to not evaluate
> is would occur when a or b are all ones, NOT when a or b was zero.
You mean if the '|' had been a '||', of course.
And actually, when a or b is NONZERO not ALL ONES.
--j.a.tainter
> Stephen Watkins UUCP: ihnp4!datacube!stephen
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