2011/11/28 Santiago A. <[email protected]>: [...] > By the way, I don't have a delphi near to check it. Is tryStrTofloat a fpc > function or it is also a delphi function? If there is such function in > delphi, someone gave up searching help too soon.
After F1 on Delphi: ============= Delphi Object and Component Reference TryStrToFloat function Converts a given string to a floating-point value with a boolean success code. Unit SysUtils Category floating point conversion routines Delphi syntax: function TryStrToFloat(const S: string; out Value: Extended): Boolean; overload; function TryStrToFloat(const S: string; out Value: Double): Boolean; overload; function TryStrToFloat(const S: string; out Value: Single): Boolean; overload; function TryStrToFloat(const S: string; out Value: Extended; const FormatSettings: TFormatSettings): Boolean; overload; function TryStrToFloat(const S: string; out Value: Double; const FormatSettings: TFormatSettings): Boolean; overload; function TryStrToFloat(const S: string; out Value: Single; const FormatSettings: TFormatSettings): Boolean; overload; C++ syntax: extern PACKAGE bool __fastcall TryStrToFloat(const AnsiString S, Extended &Value); extern PACKAGE bool __fastcall TryStrToFloat(const AnsiString S, double &Value); extern PACKAGE bool __fastcall TryStrToFloat(const AnsiString S, float &Value); extern PACKAGE bool __fastcall TryStrToFloat(const AnsiString S, Extended &Value, const TFormatSettings FormatSettings); extern PACKAGE bool __fastcall TryStrToFloat(const AnsiString S, double &Value, const TFormatSettings FormatSettings); extern PACKAGE bool __fastcall TryStrToFloat(const AnsiString S, float &Value, const TFormatSettings FormatSettings); Description Use TryStrToFloat to convert a astring, S, to a floating-point value. S must consist of an optional sign (+ or -), a string of digits with an optional decimal point, and an optional mantissa. The mantissa consists of 'E' or 'e' followed by an optional sign (+ or -) and a whole number. Leading and trailing blanks are ignored. The DecimalSeparator global variable defines the character that must be used as a decimal point. Thousand separators and currency symbols are not allowed in the string. If S doesn't contain a valid value, TryStrToFloat returns Default. TryStrToFloat places the result in Value, and returns true if the conversion was successful, false otherwise. The first three forms of TryStrToFloat are not thread-safe, because they use localization information contained in global variables. The second three forms of TryStrToFloat, which are thread-safe, refer to localization information contained in the FormatSettings parameter. Before calling the thread-safe forms of TryStrToFloat, you must populate FormatSettings with localization information. To populate FormatSettings with a set of default locale values, call GetLocaleFormatSettings. -- Silvio Clécio =============================================== Blog - <silvioprog.com.br> Twitter - <twitter.com/silvioprog> Facebook - <facebook.com/silvioprog> LazSolutions - <code.google.com/p/lazsolutions> Lazarus-BR - <groups.google.com.br/group/lazarus-br?hl=pt-BR> =============================================== * Conheça nosso canal IRC sobre Lazarus: #lazarus-br * =============================================== -- _______________________________________________ Lazarus mailing list [email protected] http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
