code_fille's blog

Bitwise ~ operator doubt
By code_fille, 10 years ago, In English 
int main() 
{
	//Beauty is in relaxed hard work.
	//SSGCA :)
	//Keep doing your thing, complexity would turn into simplicity! :)
    unsigned short int a=0xffff; 
    ~a;
    printf("%x",a);
	return 0;
}

Why does this program output 'ffff' and not 0000?

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10 years ago, # |
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a = ~a;
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    10 years ago, # ^ |
    ← Rev. 3   Vote: I like it -11 Vote: I do not like it

    yeah, but why doesn't 'a' get complemented on application of '~'?

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      10 years ago, # ^ |
        Vote: I like it +1 Vote: I do not like it

      [~a;] is not doing anything over the variable a. You are using a copy of variable a to do something (~) without assign this result to anybody.

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