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SWITCH clause
value of switch numbers
compiler implementation specifications,
A–1
Switches
checking, 1–60, 1–61
controlling, 1–61
controlling externally, 1–61
controlling internally, 1–60
definition, 1–59
order of evaluation, 1–61
program, 1–59 to 1–62
SET statement, 1–60
setting externally, 1–60
setting for a process, 1–60
setting internally, 1–60
using, 1–59
Symbol
library condition values, 13–15
numeric editing, 2–7
record, C–9
SYMBOLIC CHARACTERS clause
value of numeric literals
compiler implementation specifications,
A–1
Symbol table
and /DEBUG, 1–50
definition, 1–41
Symbol vectors
definition, 1–46
using with shareable images, 1–46
SYNCHRONIZED clause
and alignment, 16–4
for data alignment, 15–5
Syntax synonyms, D–1
SYS$SETSFM routine (ex.), 13–17
System logical
accessing at run time, 1–49
System messages
See also Linker messages
compiler, 1–36
run-time
See also Run-time messages
System return codes, differences, B–18
with illegal coding, B–18
System routines, 13–1, 13–11
calling subroutine, 13–13
function calls, 13–11
function results, 13–15
System services routines, 13–4
System spooler, 10–9
System-supplied object module libraries
definition, 1–42
T
Table elements
initializing, 4–10
Tables
See also Storage allocation
See also Subscript
accessing
literal subscripts (ex.), 4–13
with indexes, 4–12, 4–14
with literal subscripts, 4–13
with SEARCH statement, 4–16
with subscripts, 4–12
accessing table elements, 4–12
access methods, 4–12
assigning values using the SET statement,
4–16
integer value, 4–16
binary search, 4–18
multiple-key (ex.), 4–23
with keys, 4–18
with multiple keys, 4–19
defining
index and ascending search key (ex.), 4–3
sample record description (ex.), 4–7
variable-length (ex.), 4–6
defining fixed-length, 4–1
multidimensional, 4–4
defining variable-length tables, 4–5
ascending and descending keys, 4–5
size, 4–6
definition, 4–1
element length
adding bytes (ex.), 4–9
fixed-length
specifying size, 4–1
incrementing an index value using the SET
statement, 4–16
index data item
where defined, 4–3
index data items, 4–16
initializing, 4–10
alphanumeric items (ex.), 4–11
effect of fill bytes, 4–12
INITIALIZE statement, 4–12
mixed usage items (ex.), 4–11
OCCURS clause (ex.), 4–10
redefining group level, 4–11
VALUE clause (ex.), 4–10
with OCCURS clause, 4–10
with VALUE clause, 4–10
initializing indexes, 4–15
memory map
adding 3 bytes (fig.), 4–9
adding item (fig.), 4–9
COMP SYNC item (fig.), 4–8
defining (fig.), 4–7
Index–26