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What's the meaning of this sentence, "0;"?

 
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fadics
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PostPosted: Sun Jan 30, 2005 5:26 am    Post subject: What's the meaning of this sentence, "0;"? Reply with quote



0;
The above sentence can be compiled. What does it mean? Why C++ can compile
such sentence?



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E. Robert Tisdale
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PostPosted: Mon Jan 31, 2005 8:56 am    Post subject: Re: What's the meaning of this sentence, "0;"? Reply with quote



fadics wrote:

Quote:
0;

The above sentence can be compiled.
What does it mean?

Nothing.

Quote:
Why C++ can compile such sentence?

Because 0 is a perfectly valid expression in C.

Quote:
cat f.c
void f(void) {

0;
}

Quote:
gcc -Wall -std=c99 -pedantic -c f.c
f.c: In function `f':

f.c:2: warning: statement with no effect

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