Mikroelektronika MIKROE-738 Datenbogen

mikroC PRO for PIC32

MikroElektronika

221

Here are several examples of implicit conversion:

2 + 3.1      /* → 2. + 3.1 → 5.1 */

5 / 4 * 3.   /* → (5/4)*3. → 1*3. → 1.*3. → 3. */

3. * 5 / 4   /* → (3.*5)/4 → (3.*5.)/4 → 15./4 → 15./4. → 3.75 */

Pointer Conversions

Pointer types can be converted to other pointer types using the typecasting mechanism:

char *str;

int *ip;

str = (char *)ip;

More generally, the cast 

 

will convert a pointer to type “pointer to

 type

”. 

In most situations, compiler will provide an automatic implicit conversion of types where needed, without any user’s 

interference. Also, the user can explicitly convert an operand to another type using the prefix unary typecast operator:

This will convert 

 to a specified 

. Parentheses are mandatory.

For example:

char a, b;

(unsigned int) a;

(double) a + b;    // equivalent to ((double) a) + b;