Denso BHT-200QW Dokumentacja Pobierz pdf (Strona 83)

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Chapter 5. Data Types

5.5.4 Common Variables

A common variable should be declared in a main object beforehand. To share the common

variable by files other than the main object, you need to declare it with the COMMON statement

in each file where the common variable should be available.

File 1

DECLARE SUB

printaa(x)

COMMON a%

a%=2

printaa(5)

File 2

COMMON a%

SUB printaa(x)

print a%+x

SUB

To use a% as a common variable in Files 1 and 2, define the variable with the COMMON

statement in each file.

If a common variable declared with the COMMON statement is used within the SUB or

FUNCTION function in a file where the variable is defined, then the common variable will have

the same value.

(Example) COMMON aa%

FUNCTION addaa(x)

addaa=aa%+x

END FUNCTION

SUB printaa(x)

print aa%+x

END SUB

aa%=2

print addaa(2)

printaa(2)

In the above example, variables aa% used in "addaa" and "printaa" will be treated as same

one.

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