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Culngint

Paul Squires edited this page Oct 19, 2026 · 2 revisions

Home › Converting Data Types › CULngInt

CULngInt

Converts a number or string to a 64-bit ULongInt, rounding to the nearest.

Syntax

Declare Function CULngInt ( ByVal expression As datatype ) As ULongInt
Type typename
Declare Operator Cast ( ) As ULongInt
End Type

Parameters

  • expression
  • datatype
  • typename

Description

The CULngInt function rounds off the decimal part and returns a 64-bit ULongInt value. The function does not check for an overflow, and results are undefined for values which are less than 0 or larger than 18 446 744 073 709 551 615. Additionally, casts from floating-point expressions are currently not guaranteed to work for values higher than 2^63 (9 223 372 036 854 775 808).

The name can be explained as 'Convert to Unsigned LoNG INTeger'.

If the argument is a string expression, it is converted to numeric by using ValULng.

Return Value

A ULongInt value.

Remarks

Usage

result = CULngInt( numeric expression )

result = CULngInt( string expression )

result = CULngInt( user defined type )

Dialect Differences

  • Not available in the -lang qb dialect unless referenced with the alias __Culngint.

Differences from QB

  • New to FreeBASIC

See also

Examples

' Using the CLNGINT function to convert a numeric value

'Create an UNSIGNED LONG INTEGER variable

Dim numeric_value As ULongInt

'Convert a numeric value

numeric_value = CULngInt(12345678.123)

'Print the result, should return 12345678

Print numeric_value

Sleep

Category: Converting Data Types
Kind: function


Reproduced from the FreeBASIC Wiki Manual under the GNU Free Documentation License 1.3 — with no Invariant Sections, no Front-Cover Texts and no Back-Cover Texts. Copyright © the FreeBASIC project and wiki contributors. See License.

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