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Subject: Re: [boost] suggestion on assertion macros
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2010-03-12 12:34:30


AMDG

DE wrote:
> but to check if the arg converts to bool we can write something like
>
> #define assert(cond) sizeof(bool(cond))
>

#define assert(cond) sizeof(bool(cond))

int main() {
    int i = 0;
    assert(i);
}

warning C4800: 'int' : forcing value to bool 'true' or 'false'
(performance warning)

> which may or may not expand to some code (i.e. machine instructions)
>

If this isn't completely optimized away, and you actually
care, you should get a better compiler.

In Christ,
Steven Watanabe


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