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sizeof operator

            The sizeof operator returns the size of its operand in bytes. The sizeof operator always precedes its operand. The operand may be an expression or it may be a cast.

Example:

            Suppose i is an integer variable and c is a character type variable then

Printf(“Size of integer : %d”,sizeof(i));
Printf(“Size of character : %c”,sizeof(c));

Might generate the following output :
Size of integer : 2
Size of character : 1

Program:

sizeof operator
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