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Compatibility (cont’d)
fixed-length records, B–27
ORGANIZATION INDEXED file, reading,
B–27
print-controlled files, B–27
reading COBOL indexed files, 6–47
variable-length records, B–27
VFC files, B–27
COMP data item
advantages of, 15–5 to 15–7
Compilation performance, 1–2
and physical memory, 1–4
and separate compilation, 1–6
and virtual memory, 1–3
Compiled module entry, C–19
Compiler
and linker, 1–27
diagnostic messages issued by
general description, 1–18
driver, 1–10, 1–27
error messages, 1–36
messages, 1–36
performance, 1–2
specifying directory for temporary files, 1–17
Compiler directives
See also Alignment directives
binary data item, 16–3
Compiler errors
example of, 1–37
hints to avoid them, 1–35
Compiler implementation limitations
subscripts
number of levels, A–3
Compiler implementation specifications, A–1 to
A–3
ALPHABET clause
value of numeric literals, A–1
/AUDIT qualifier
number of strings, A–2
BLOCK CONTAINS clause
disk media, A–3
magtape media, A–3
bucket size, A–1
contained programs
nesting depth, A–2
data items
exceeding size of, A–2
EXTENSION option
value of integers, A–1
external report file
number of characters, A–2
FD record length, A–1
file connectors, A–1
hexadecimal literals, A–2
indexed file
number of key data items, A–1
index name
subscript value, A–3
Compiler implementation specifications (cont’d)
intrinsic functions, digits, A–2
ISAM keys, digits, A–2
MERGE
number of USING files, A–2
multiblock count, A–1
MULTIPLE FILE TAPE clause
number of files, A–3
nested IF statements
static nesting depth, A–3
nonnumeric literals, A–2
number of literal phrases, A–1
numeric literal, digits, A–2
numeric SORT/MERGE keys, digits, A–2
OCCURS n TIMES clause
value of n, A–3
Oracle CDD/Repository pathname specification
number of characters, A–2
PERFORM n TIMES clause
value of n, A–3
physical block size, A–1
picture character string, characters in, A–2
PICTURE character-strings, A–2
alphanumeric or alphabetic, A–2
alphanumeric or numeric edited, A–2
PICTURE character strings, digits in fixed-point
numeric and numeric-edited items, A–2
record definitions, A–1
report file
number of lines, A–3
RESERVE AREAS clause
value of integers, A–2
run-time storage, A–1
SD record length, A–1
SORT
number of USING files, A–2
subscript name
subscript value, A–3
SWITCH clause
value of switch numbers, A–1
SYMBOLIC CHARACTERS clause
value of numeric literals, A–1
user-words
number of characters, A–2
USING phrase
number of operands, A–2
WINDOW option
value of integers, A–1
Compiler listing files
definition, 1–38
multiple instances of source line, B–14
reading, 1–38
separate compilation, B–15
Compiler messages
format, 1–36
interpreting, 1–37
Index–6