FloatToStr

Convert a float value to a string using a fixed format.

Declaration

Source position: sysstrh.inc line 181

  function FloatToStr(Value: Extended) : string;
  function FloatToStr(Value: Extended; 
                     const FormatSettings: TFormatSettings) : string;
  function FloatToStr(Value: Double) : string;
  function FloatToStr(Value: Double; 
                     const FormatSettings: TFormatSettings) : string;
  function FloatToStr(Value: Single) : string;
  function FloatToStr(Value: Single; 
                     const FormatSettings: TFormatSettings) : string;
  function FloatToStr(Value: Currency) : string;
  function FloatToStr(Value: Currency; 
                     const FormatSettings: TFormatSettings) : string;
  function FloatToStr(Value: Comp) : string;
  function FloatToStr(Value: Comp; const FormatSettings: TFormatSettings)
                      : string;
  function FloatToStr(Value: Int64) : string;
  function FloatToStr(Value: Int64; const FormatSettings: TFormatSettings)
                      : string;

Description

FloatToStr converts the floating point variable Value to a string representation. It will choose the shortest possible notation of the two following formats:

Fixed format
will represent the string in fixed notation,
Decimal format
will represent the string in scientific notation.

More information on these formats can be found in FloatToStrF . FloatToStr is completely equivalent to the following call: 

FloatToStrF(Value, ffGeneral,15, 0);

Note that on unix systems, the localization support must be enabled explicitly, see Localization .

Errors

None.

See also

Name Description
FloatToStrF Convert a float value to a string using a given format.
FormatFloat Format a float according to a certain mask.
StrToFloat Convert a string to a floating-point value.

Example

Program Example67;
{ This program demonstrates the FloatToStr function }
Uses sysutils;
Procedure Testit (Value : Extended);
begin
  Writeln (Value,' -> ',FloatToStr(Value));
  Writeln (-Value,' -> ',FloatToStr(-Value));
end;
Begin
  Testit (0.0);
  Testit (1.1);
  Testit (1.1e-3);
  Testit (1.1e-20);
  Testit (1.1e-200);
  Testit (1.1e+3);
  Testit (1.1e+20);
  Testit (1.1e+200);
End.