From Clomosy Docs
(Created page with " function StrToIntDef(const IntegerString string; Default Integer):Integer; The StrToIntDef function converts an Integer string, IntegerString such as '100' into an Integer value, with a Default if the conversion fails.<br> It supports +ve and -ve numbers, and hexadecimal numbers, as prefixed by $ or 0x.<br> '''Example:'''<br> '''var''' firstNumber,secondNumber, thirdNumber, fourthNumber : Integer;<br> '''begin'''<br> firstNumber := 32; secondNumber := StrT...") |
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'''begin'''<br> | '''begin'''<br> | ||
firstNumber := 32; | firstNumber := 32; | ||
secondNumber := StrToIntDef('test00', 10); // Leading blanks are ignored | secondNumber := '''StrToIntDef'''('test00', 10); // Leading blanks are ignored | ||
thirdNumber := StrToIntDef('$1E', 0); // Hexadecimal values start with a '$' | thirdNumber := '''StrToIntDef'''('$1E', 0); // Hexadecimal values start with a '$' | ||
fourthNumber := StrToIntDef('-0x1E', 0); // ... or with a '0x'<br> | fourthNumber := '''StrToIntDef'''('-0x1E', 0); // ... or with a '0x'<br> | ||
ShowMessage('firstNumber : '+IntToStr(firstNumber)); | ShowMessage('firstNumber : '+IntToStr(firstNumber)); | ||
ShowMessage('secondNumber : '+IntToStr(secondNumber)); | ShowMessage('secondNumber : '+IntToStr(secondNumber)); | ||
Revision as of 13:16, 28 February 2023
function StrToIntDef(const IntegerString string; Default Integer):Integer;
The StrToIntDef function converts an Integer string, IntegerString such as '100' into an Integer value, with a Default if the conversion fails.
It supports +ve and -ve numbers, and hexadecimal numbers, as prefixed by $ or 0x.
Example:
var firstNumber,secondNumber, thirdNumber, fourthNumber : Integer;
begin
firstNumber := 32; secondNumber := StrToIntDef('test00', 10); // Leading blanks are ignored thirdNumber := StrToIntDef('$1E', 0); // Hexadecimal values start with a '$' fourthNumber := StrToIntDef('-0x1E', 0); // ... or with a '0x'
ShowMessage('firstNumber : '+IntToStr(firstNumber)); ShowMessage('secondNumber : '+IntToStr(secondNumber)); ShowMessage('thirdNumber : '+IntToStr(thirdNumber)); ShowMessage('fourthNumber : '+IntToStr(fourthNumber));
end;
Output:
firstNumber : 32 secondNumber : 10 thirdNumber : 30 fourthNumber : -30