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Manual – IPOSplus®
15
Binary operators
Compiler – Operators
15.3 Binary operators
These operators link two operands together and are located between two operands.
15.3.1 Example
Combined assignment operators lead to an abbreviated notation. Although they make it
more difficult to read a program, they are mentioned for the sake of completeness. The
operation is performed in the example with H1 = 2 (0b10) and H2 =3 (0b11).
15.4 Ternary operators
The IPOS
plus®
Compiler only recognizes one operator that links together three oper-
ands: The conditional operator. Its form is as follows:
a ? b : c means: If a then b, otherwise c
where a is a logical expression and b and c are expressions.
15.4.1 Example
The example is the abbreviated notation of:
Where possible, the ternary operator should not be used due to the illegibility of the
source code.
H1 = H2; // The binary assignment operator (=) assigns variable H1 the value of H2
H1 = H2 - 3; // The binary minus operator (-) forms the difference between H2 and 3
Operator
Operation
Example
Corresponds to
Example H1
=
=
Simple assignment
H1 = H2;
H1 = H2;
3
*=
Assign product
H1 *= H2;
H1 = H1 * H2;
6
/=
Assign quotient
H1 /= H2;
H1 = H1/H2;
0
%=
Assign remainder
H1%= H2:
H1 = H1% H2;
2
+=
Assign sum
H1 += H2;
H1 = H1 + H2;
5
-=
Assign difference
H1 -= H2;
H1 = H1 - H2;
-1
&=
Assign bit-by-bit AND
H1 &= H2;
H1 = H1 & H2;
0b10
^=
Assign bit-by-bit XOR
H1 ^= H2;
H1 = H1 ^ H2;
0b01
¦=
Assign bit-by-bit OR
H1 ¦= H2;
H1 = H1 ¦ H2;
0b11
<<=
Assign shift left
H1 <<= H2;
H1 = H1 << H2;
0b1000
> > =
Assign arithmetical shift right
H1 >>= H2;
H1 = H1 >> H2;
0b0
H1 = H2 == 3 ? H3 : H4; // If H2 equals 3, H1 is assigned the value of
H3,
// otherwise it is assigned the value H4
if (H2 == 3)
H1 = H3;
else
H1 = H4;
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