ValULng
Converts a string to a unsigned 64bit integer
Declare Function ValULng ( ByRef strnum As Const String ) As ULongInt
Declare Function ValULng ( ByRef strnum As Const WString ) As ULongInt
result = ValULng ( strnum )
strnum
Returns a ULongInt of the converted string
If the first character of the string is invalid, ValULng will return 0.
For example, ValULng("10") will return 10, and ValULng("10.60") will return 10 as well. The function parses the string from the left, skipping any white space, and returns the longest number it can read, stopping at the first non-suitable character it finds. Any non-numeric characters, including decimal points and exponent specifiers, are considered non-suitable, for example, ValULng("23.1E+6") will just return 23.
ValULng can be used to convert integer numbers in Binary / Octal / Hexadecimal format, if they have the relevant identifier ("&B;" / "&O;" / "&H;") prefixed, for example: ValULng("&HFF;") returns 255.
If you want to convert a number into string format, use the Str function.
Syntax
Declare Function ValULng ( ByRef strnum As Const String ) As ULongInt
Declare Function ValULng ( ByRef strnum As Const WString ) As ULongInt
Usage
result = ValULng ( strnum )
Parameters
strnum
the string to convert
Return Value
Returns a ULongInt of the converted string
If the first character of the string is invalid, ValULng will return 0.
Description
For example, ValULng("10") will return 10, and ValULng("10.60") will return 10 as well. The function parses the string from the left, skipping any white space, and returns the longest number it can read, stopping at the first non-suitable character it finds. Any non-numeric characters, including decimal points and exponent specifiers, are considered non-suitable, for example, ValULng("23.1E+6") will just return 23.
ValULng can be used to convert integer numbers in Binary / Octal / Hexadecimal format, if they have the relevant identifier ("&B;" / "&O;" / "&H;") prefixed, for example: ValULng("&HFF;") returns 255.
If you want to convert a number into string format, use the Str function.
Example
Dim a As String, b As ULongInt
a = "20xa211"
b = ValULng(a)
Print a, b
a = "20xa211"
b = ValULng(a)
Print a, b
20xa211 20
Dialect Differences
- Not available in the -lang qb dialect unless referenced with the alias __Valulng.
Differences from QB
- New to FreeBASIC
See also