Programmer Guide/Command Reference/INT: Difference between revisions
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{{DISPLAYTITLE: | {{DISPLAYTITLE:INT, INTCHECK}} | ||
{|class="einrahmen" | {|class="einrahmen" | ||
!command !!return value !!value of RC | !command !!return value !!value of RC | ||
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|} | |} | ||
This statement will cause your expression being evaluated as an integer expression. More precisely, the expression will be evaluated numerically, and the result will be converted to an integer whose textual representation will be the string to be assigned to the destination variable. The calculation itself will be done with 64bit floating point accuracy. | |||
;Notes: | |||
:* The <code>INT</code> statement converts the result to an integer by ''truncating'' it. There is no rounding involved, no rounding at all. | |||
:* In case of the expression being syntactically ill-formed, an error (<code>INT</code>) or warning (<code>INTCHECK</code>) is reported. | |||
;Examples: | |||
#result := int 3.1 // #result is set to 3 | #result := int 3.1 // #result is set to 3 | ||
#result := int 3.9 // #result is set to 3, too | #result := int 3.9 // #result is set to 3, too | ||
Revision as of 13:53, 21 April 2011
| command | return value | value of RC |
|---|---|---|
var := INT expression
|
integer part of evaluated expression or empty string if the evaluation fails |
0 error code |
var := INTCHECK expression
|
integer part of evaluated expression or empty string if the evaluation fails |
0 warning code |
This statement will cause your expression being evaluated as an integer expression. More precisely, the expression will be evaluated numerically, and the result will be converted to an integer whose textual representation will be the string to be assigned to the destination variable. The calculation itself will be done with 64bit floating point accuracy.
- Notes
-
- The
INTstatement converts the result to an integer by truncating it. There is no rounding involved, no rounding at all. - In case of the expression being syntactically ill-formed, an error (
INT) or warning (INTCHECK) is reported.
- The
- Examples
#result := int 3.1 // #result is set to 3
#result := int 3.9 // #result is set to 3, too
#result := int 3.9 * 3.9 // #result is set to 15 (note that calculation
// is done in floating point, resulting in 15.21,
// and truncation occurs only on assigning
// compare the preceding example with the following one:
#result := int 3 * int(3.9) // here, #result will be assigned 9 - cool, isn't it?
- See also
- NUM, NUMCHECK, EVAL, EVALCHECK
