Specifications

Chapter 5. Data Types
69
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 con-
ditions.
• The Interpreter automatically converts a value of a real into an integer, in any of the fol-
lowing 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 inte-
ger 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