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Thus, the output is 40.
The sizeof Operator
The sizeof operator returns the number of bytes the operand occupies in memory.
 
It is
 
a
 
unary
operator.
 Please remember the following points regarding the sizeof operator:
1. The sizeof operator has the same precedence as prefix increment/decrement operators.
2. The parentheses used with sizeof are required when the operand is a data type. With variables
or constants, the parentheses are not necessary.
For example,
      #include
      void main( )
       {
           printf(“\n%d”, sizeof(int));
           printf(“\n%d”, sizeof(long));
           printf(“\n%d”, sizeof(float));
           printf(“\n%d”, sizeof(double));
           printf(“\n%d”, sizeof(long double));

---

           printf(“\n%d”, sizeof(char));
       }