Mikroelektronika MIKROE-738 Datenbogen

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mikoC PRO for PIC32

MikroElektronika

Unary Logical Operator

The ! (logical negation) operator produces the value 0 if its operand is true (nonzero) and the value 1 if its operand is 

false (0).

!

logical negation 14

The following two expressions are equivalent: 

    !right;

right == 0;

Unary Bitwise Operator

The result of the 

~

 (bitwise negation) operator is the bitwise complement of the operand. In the binary representation of 

the result, every bit has the opposite value of the same bit in the binary representation of the operand.

~

bitwise complement (unary); inverts each bit

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Address and Indirection Operator

In the mikroC PRO for PIC32, address of an object in memory can be obtained by means of an unary operator 

&

. To 

reach the pointed object, we use an indirection operator (

*

) on a pointer. See Pointers section for more details.

*

accesses a value indirectly, through a pointer; result is the 

value at the address to which operand points

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&

gives the address of its operand

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Example: 

 int *p_to_y;    // p_to_y is defined as a pointer to an int

 int y;          // y is defined as an int

 

 p_to_y = &y;    // assigns the address of the variable y to the pointer p_to_y

 *p_to_y = 3;    // causes the variable y to receive the value 3

 

Note: Besides these, sizeof and casting unary operators are supported also.