Denso BHT-200QW Spécifications télécharger pdf (Page 169)

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Chapter 14. Statement Reference

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• filename is the name of an FN3 function. The extension of the file names is fixed

to .FN3. (For the FN3 functions, refer to Chapter 16, "Extended Functions" or the

"BHT-BASIC Extension Library Manual.")

• functionnumber is the function number of an FN3 specified by filename.

• data is a variable for the function number of the FN3 (that is, it is used as an argument

to the FN3 function).

• When specifying an array to data, add a pair of parentheses containing nothing as

shown below.

Example: CALL "_xxx.FN3" 1 DATA ()

• When calling a function (specified by functionnumber) that returns a string variable:

Reserve a storage area for a returned string variable by using a variable declaration

statement (DIM, COMMON, or DEFREG). It is not necessary to assign arbitrary data of

the string length required for a return value to the variable.

If the string length of a returned value is greater than the length reserved by a variable

declaration statement, then a run-time error will result.

(Example 1) If a return value is a fixed-length string, e.g. 8-character length:

DIM OUTPUT$[8] ' Reserve a storage area of 8 characters.

(Example 2) If a return value is a variable-length string of a maximum of N characters:

DIM OUTPUT$[N] ' Reserve a storage area of a max. of N chars.

NOTE

To use FN3 functions except extended functions given in Chapter 16, you need to

download the extension programs from an extension library sold separately.

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