System.SysUtils.StrToUInt64Def

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Delphi

function StrToUInt64Def(const S: string; const Default: UInt64): UInt64;

C++

extern DELPHI_PACKAGE unsigned __int64 __fastcall StrToUInt64Def(const System::UnicodeString S, const unsigned __int64 Default)/* overload */;

Properties

Type Visibility Source Unit Parent
function public
System.SysUtils.pas
System.SysUtils.hpp
System.SysUtils System.SysUtils

Description

Converts a string that represents an integer (decimal or hex notation) into a number.

StrToUInt64Def converts the string S, which represents an integer-type number in either decimal or hexadecimal notation, into a number. The output value is an unsigned 64 bit sized integer. If S does not represent a valid number, StrToUInt64Def returns the number passed in Default.

StrToUInt64Def supports strings in the following hexadecimal notations:

  • Delphi: 0$1234 and 0x1234.
  • C++: 0x1234.

See Also