How to identity processor architecture

prabhu prabhum at
Thu Jan 27 01:17:14 EST 2011

Hi Dear,

I just wanna to know my processor architecture(32bit or 64 bit) through 
c programming.

According to me the sizeof of pointer will give the result. Like below 

int main()
int *ptr;

If the result is 4 then it is 32 bit processor... If it is 8 then it is 
64 bit processor.

Please correct me if i am wrong... (I do not have system to check this.)

Any suggestion or help would be appreciated.


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