CROSSREF Manual

EXTENDED BASIC

Sample Listing

Figure 8-2 shows the first page of the cross-reference listing.

This is the cross-reference file list. It lists the name of each

source file scanned. In this example, only one file, BASEX, was

scanned.

PAGE 1

CROSSREF - CROSS-REFERENCE PROGRAM - T9622C00 - (15JUL87)

FILE NO. FILE NAME

[1] $EM2.UCREF.BASEX

Figure 8-2. CROSSREF Listing--File List

The identifier list makes up the rest of the cross-reference

listing. See Figure 8-3 on the following page. The identifier

list describes each identifier in alphabetic order, showing:

• How it is defined (its attributes)

• Where it is defined (file name and number and line number)

• Where and how it is used in the program

Look at the entry for FNTHISMONTH in the listing. The identifier

header indicates that FNTHISMONTH is a user-defined function

returning a floating-point, REAL(64) value. It is defined in the

file BASEX at line 220.

The reference line indicates that FNTHISMONTH is referenced in

the file BASEX at lines 220, 230.01, 230.02, and 540. It is

defined (indicated by code D) at line 220, and it is write

referenced (indicated by code W) at lines 220, 230.01, and

230.02. The function is invoked (indicated by code I) at line

540.

The value of FNTHISMONTH is initialized at line 220; that is,

value 0 is written to it. Thus, the function is both declared

and write referenced at line 220.

8-5