Difference between revisions of "Talk:sysutils"
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I do not think we should try to "duplicate" the fpc docs here? [[user:bart|bart]] 2016-07-03 17:10 CET. | I do not think we should try to "duplicate" the fpc docs here? [[user:bart|bart]] 2016-07-03 17:10 CET. | ||
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| + | |||
| + | "To catch an exception by its name you will need to include sysUtils in every unit that may throw an exception"<br> | ||
| + | That makes no sense whatsoever. | ||
| + | <syntaxhighlight lang=pascal> | ||
| + | unit divzero; | ||
| + | |||
| + | interface | ||
| + | |||
| + | procedure DoDivByZero; | ||
| + | |||
| + | implementation | ||
| + | |||
| + | procedure DoDivByZero; | ||
| + | var | ||
| + | A, B: Integer; | ||
| + | begin | ||
| + | A := 1; | ||
| + | B := 0; | ||
| + | A := A div B; | ||
| + | end; | ||
| + | |||
| + | end.</syntaxhighlight> | ||
| + | |||
| + | This unit does NOT include sysutils.<br> | ||
| + | If you call it from the main program, <b>and</b> your main program uses SysUtils, then you can catch the exception by name: "EDivByZero: Division by zero". --[[User:Bart|Bart]] ([[User talk:Bart|talk]]) 13:47, 23 January 2021 (CET) | ||
Revision as of 14:47, 23 January 2021
I do not think we should try to "duplicate" the fpc docs here? bart 2016-07-03 17:10 CET.
"To catch an exception by its name you will need to include sysUtils in every unit that may throw an exception"
That makes no sense whatsoever.
unit divzero;
interface
procedure DoDivByZero;
implementation
procedure DoDivByZero;
var
A, B: Integer;
begin
A := 1;
B := 0;
A := A div B;
end;
end.
This unit does NOT include sysutils.
If you call it from the main program, and your main program uses SysUtils, then you can catch the exception by name: "EDivByZero: Division by zero". --Bart (talk) 13:47, 23 January 2021 (CET)
