 |
» |
|
|
|
Evaluates an expression. (Native Mode) Syntax | |
| | | |  | NOTE: This command follows the optional MPE/iX command line
syntax. Refer to "Optional Format for MPE/iX Commands" at the beginning
of this chapter. | | | | |
Parameters | |
- expression
The expression to be evaluated.
Operation Notes | |
The CALC
command evaluates expression and displays
the result to $STDLIST.
Expressions can yield integer, string, or Boolean results. Integer
results are displayed in decimal, hexadecimal ($
prefix), and octal (%
prefix) notations. Boolean expressions are displayed as TRUE or
FALSE. The variable HPRESULT
is set to the result of the last expression
evaluated by CALC.
The type of HPRESULT
changes depending on the type of result generated by CALC. Table 3-1 “Logical Operators - The CALC Command” lists some of the
logical operators for the CALC
command. Enter :HELP expressions for more information Table 3-1 Logical Operators - The CALC 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 |
The operands you may use are any variable, integer, string,
Boolean constant, or the system-reserved words WARN,
FATAL, SYSTEM,
and OK. You may
form compound logical expressions using the AND, NOT, XOR, and OR
logical operators, optionally nested within parentheses. Do not use the FINFO function with the CALC
command for remote files. It ignores their existence and returns
incorrect information. Use | |
This command is available in a session, job, program, or in
BREAK. Pressing Break terminates
the INPUT( )
function. Example | |
The result of CALC sample
depends on the value entered for sample
and on the type of the value, as shown in Table 3-2 “Results of CALC” Table 3-2 Results of CALC | sample | Displayed
(HPRESULT) | Type |
|---|
| 5*10-7 | 43, $2B, %53 | Integer | | LEN("abc") | 3, $3, %3 | Integer | | UPS("Abc") | ABC | String | | 1=1 | TRUE | Boolean | | MAX(1,0,abs(-12),10) | 12, $c, %14 | Integer |
Related Information | |
- Commands
DELETEVAR,
ELSEIF, IF,
SETJCW, SETVAR,
SHOWJCW, SHOWVAR,
WHILE - Manuals
Appendix B, "Expression Evaluator Functions" Command Interpreter Access and Variables Programmer's
Guide
|
