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Directives (cont’d)
memory allocation and access, 16–3
SET VOLATILE, 16–3
DISPLAY data items, avoiding for arithmetic,
15–5
DISPLAY statement
See also Video forms
differences, B–16
output, object of, 11–1
DISPLAY within ACCEPT ON EXCEPTION,
terminating, 11–14
/DISPLAY_FORMATTED, 1–33
-display_formatted flag, 1–12
/DISPLAY_FORMATTED qualifier, 11–12
-D num flag, 1–12
Double-precision data
storage differences, B–21
Driver
definition of, 1–10, 1–27
relationship to software components, 1–10,
1–27
Driver program
and ld, 1–19
Duplicate keys check, 6–7
DUPLICATES IN ORDER phrase, 9–6
Dynamic access mode
specifying, 6–21
E
Edited moves
nonnumeric data, 3–9
Editing
numeric symbols, 2–7
EDITING phrase, 11–28
Editors, 1–28
See also Developing programs
Elementary data items
nonnumeric, 3–2
Elementary moves
nonnumeric, 3–7
numeric-edited, 2–7
END-DISPLAY, B–17
END-DISPLAY phrase, 11–14
END PROGRAM statement and Compaq FUSE,
1–15
END-SET ALIGNMENT directive
syntax of, 16–6
END-SET PADALIGN, 16–6
END-SET VOLATILE directive
syntax of, 16–3
Entry point
main, 1–23
Environment variable, 6–18
accessing at run time, 1–24
COBOL_INPUT, 11–2
COBOL_OUTPUT, 11–2
compiler
Environment variable
compiler (cont’d)
specifying directory for temporary files,
1–17
stdin, 11–2
stdout, 11–2
TMPDIR, 1–17
Erasing
a line on the terminal screen, 11–4
entire terminal screen, 11–4
to end of line on terminal screen, 11–5
to end of terminal screen, 11–5
Error messages
compiler, 1–36
linker
See also Linker messages
REFORMAT Utility, 14–4
run-time
See also Run-time messages
Errors
common Compaq COBOL command line, 1–35
Compaq FUSE and END PROGRAM, 1–15
Compaq FUSE and PROGRAM-ID, 1–15
compiler
effect on linker, 1–23
I/O, 1–54
in arithmetic statements, 2–15
in MOVE statements, 2–9
in size, 2–13
inspecting data, 5–33
linker messages, 1–22
nonnumeric MOVE statements, 3–11
run-time, 1–51
run-time input/output, 1–54
STRING statements, 5–6
unstringing data, 5–16
Exception condition
definition, 1–51
Executable programs
creating using cobol command, 1–9
installing using Tru64 UNIX tools, 1–26
Execution control
transferring, 12–5
EXIT PROGRAM statement
use of, 12–8
Extending files
line sequential, 6–49
sequential, 6–49
EXTENSION option
value of integers
compiler implementation specifications,
A–1
Extensions, detecting foreign, D–1
EXTERNAL clause
use of, 12–5
Index–9