Denso BHT-200QW Specifikace stáhnout pdf (Strana 77)

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Chapter 5. Data Types

5.4 Type Conversion

5.4.1 Type Conversion

BHT-BASIC has the type conversion facility which automatically converts a value of one data

type into another data type during value assignment to numeric variables and operations;

from a real number into an integer number by rounding off, and vice versa, depending upon

the conditions.

• The Interpreter automatically converts a value of a real into an integer, in any of the

following cases:

- Assignment of real expressions to integer variables

- Operands for an arithmetic operator MOD

- Operands for logical operators: AND, OR, NOT, and XOR

- Parameters for functions

- File numbers

In the type conversion from real into integer, the allowable value range of resultant

integer is limited as shown below. If the resultant integer comes out of the limit, a

run-time error will occur.

-32768 ≤resultantintegervalue ≤+32767

• In assignments or operations from integer to real, the type-converted real will have

higher accuracy:

Syntax: realvariable = integerexpression

In the above case, the Interpreter applies the type conversion to the evaluated

resultant of the integer expression before assigning the real value to the real variable.

Therefore, a in the following program will result in the value of 184.5.

a=123%*1.5

1 2 ... 72 73 74 75 76 77 78 79 80 81 82 ... 586 587

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