More on Declarations

We have seen

      int i;
      int j = 3;
      float x = 3.14;

A const declaration

      const float e = 2.71828;
      const float pi2 = 3.1415/2;

• a const variable should not be changed once it is initialized

• get compiler warning if you try

        const float pi = 3.1415;
        pi = 3.0;    /* generates warning */