Difference between revisions of "ASSERT"
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Yvonnemilne (Talk | contribs) |
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procedure proc1 | procedure proc1 | ||
| − | + | parameters para1, para2, para3 | |
| − | parameters para1, para2, para3 | + | assert pcount() = 3 message [3 parameters required] |
| − | assert pcount() = 3 message [3 parameters required] | + | // code continues |
| − | // code continues | + | |
| − | + | ||
return | return | ||
</code> | </code> | ||
| Line 61: | Line 59: | ||
[[Category:Documentation]] | [[Category:Documentation]] | ||
[[Category:Commands]] | [[Category:Commands]] | ||
| + | [[Category:Error Handling and Debugging]] | ||
| + | [[Category:Error Handling and Debugging Commands]] | ||
Revision as of 16:09, 1 June 2009
Class
Error Handling and Debugging
Purpose
Display a message dialog with options when a condition evaluates to False
Syntax
ASSERT <expL> [MESSAGE <expC>]
See Also
DEBUG, SET ASSERTS, SET COMPILE
Description
The ASSERT command is used for program debugging purposes: to display a message dialog with options when a condition evaluates to False (.F.). The condition is specified in <expL>. An optional message can be specified using the MESSAGE <expC> clause. If no message is specified; the default message is:
Assertion failed on line <#> of
procedure <prg>.
The dialog has four buttons, offering the following options:
| Button | Option |
|---|---|
| Debug | Suspends program execution and starts the Debugger. The Debug option is only available if the program is being run uncompiled. |
| Cancel | Stops program execution. |
| Ignore | Continues program execution. |
| Ignore All | Continues program execution and issue SET ASSERTS OFF, causing subsequent asserts to be ignored. |
If SET ASSERTS is OFF, asserts are ignored. SET ASSERTS is OFF by default.
Example
set asserts on procedure proc1 parameters para1, para2, para3 assert pcount() = 3 message [3 parameters required] // code continues return
Products
Recital Mirage Server, Recital Terminal Developer
