Meaning of (++*ptr)

Meaning of  (++*ptr) :

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Consider the Following Example :

int n = 20 , *ptr ;
ptr = &n;
printf("%d",++*ptr);

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Explanation :

1. '++' and '*' both have Equal Precedence 
2. Associativity is from Right to Left ( Expression evaluated from R->L)
   
3. Both are Unary (Operates on single operand )
4. So ' * ' is Performed First then ' ++ '
   

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Calculation of Answer :

1. ++*ptr  =  ++ ( *ptr )
2.              =  ++ ( *3058 )
3.              =  ++ ( 20 )
4.              =  21

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Tags / Keywords : | Pointer : Meaning of (++*ptr)

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