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Provides an alternate execution sequence within an IF statement.
Native Mode Syntax | |
Parameters | |
- expression
Logical expression, consisting of operands and relational
operators. The THEN
keyword is optional. It may be used or omitted and has no effect
on the results. The operators listed in Table 3-8 “Logical Operators - The ELSEIF Command” may be incorporated in expression.
Table 3-8 Logical Operators - The ELSEIF Command | Logical operators: | AND, OR, XOR, NOT | | Boolean functions and values: | BOUND, TRUE, FALSE, ALPHA, ALPHANUM, NUMERIC,
ODD | | Comparison operators: | =, <>, <, >, <=,
>= | | Bit manipulation operators: | LSL, LSR, CSR, CSL, BAND, BOR, BXOR, BNOT | | Arithmetic operators: | MOD, ABS, * , / , + , -, ^ (exponentiation) | | Functions returning strings: | CHR, DWNS, UPS, HEX, OCTAL, INPUT, LFT, RHT,
RPT, LTRIM, RTRIM, STR | | Functions returning integers: | ABS, LEN, MAX, MIN, ORD, POS, TYPEOF | | Other functions: | FINFO, SETVAR |
Operation Notes | |
The ELSEIF
command is used only in conjunction with the IF
command. The ELSEIF
command provides a way of avoiding nested IF statements. ELSEIF
has meaning only when used after an IF construct. Any number of ELSEIF
commands may follow an IF
command. In contrast, only one ELSE
command may follow an IF
or ELSEIF command.
Refer to the ELSE
and IF commands. Use | |
This command may be issued from a session, job, program, or
in BREAK. Pressing Break has
no effect unless expression contains the INPUT
evaluator function. Example | |
The following example illustrates using the ELSE
command with the IF
command: IF EXPN1 THEN
...
ELSE
IF EXPN2 THEN
...
ELSE
IF EXPN3 THEN
...
ELSE
...
ENDIF
ENDIF
ENDIF |
The same result can be accomplished more efficiently by using
the ELSEIF command: IF EXPN1 THEN
...
ELSEIF EXPN2 THEN
...
ELSEIF EXPN3 THEN
...
ELSE
...
ENDIF |
Notice that only one ELSE
may follow an ELSEIF,
while any number of ELSEIF
commands may follow an IF. Related Information | |
- Commands
CALC,
DELETEVAR, ELSE,
ENDIF, IF,
SETJCW, SETVAR,
SHOWJCW, SHOWVAR - Manuals
None
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