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A comment on Will It Optimize?. Parent comment

Re:Will It Optimize? by rcfox on Friday September 16, 2011 @12:15PM (#3005054)
"If no converted case constant expression matches and there is no default label, no part of the switch body is executed."

Section 6.8.4.2, item 5 of http://www.open-std.org/jtc1/sc22/WG14/www/docs/n1256.pdf (page 134)

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Re:Will It Optimize? by cbr on Friday September 16, 2011 @04:11PM (#3006115)
how is this different from "does nothing"?
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Re:Will It Optimize? by rcfox on Friday September 16, 2011 @04:55PM (#3006264)
... it's not? I was just providing an authoritative reference for the parent's claim.

(Pedantic note: It's technically incorrect to say that the switch statement does nothing.

    switch(FunctionThatDoesSomethingAndReturns1()) {
        case 2:
            // foo
    }
The switch body does nothing, but the actual statement does something.)
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