Cvlongint

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CVLongInt

Reads a LongInt back from an 8-byte string.

Syntax

Declare Function CVLongInt ( ByVal dbl As Double ) As LongInt
Declare Function CVLongInt ( ByRef str As Const String ) As LongInt

Parameters

• dbl
• str

Description

Returns a 64-bit LongInt value using the binary data contained in a Double, or a String of at least eight bytes in length. A value of zero (0) is returned if the string is less than eight bytes in length.

CVLongInt is used to convert 8-byte strings created with MKLongInt.

This function can also be used to convert 64-bit integer values from a memory or file buffer without the need for a Type structure. However, just as with the type structure, special care should be taken when using CVLongInt to convert strings that have been read from a buffer.

Return Value

A LongInt variable holding a binary copy of the input variable.

Remarks

Usage

result = CVLongInt( dbl )

result = CVLongInt( str )

Differences from QB

• In QB an error occurs if the string passed is less than eight bytes in length.
• QB did not support floating-point arguments.

See also

• MKLongInt
• CVShort
• CVI
• CVL

Examples

Dim ll As LongInt, s As String

s = "ABCDEFGH"

ll = CVLongInt(s)

Print Using "s = ""&"""; s

Print Using "ll = _&H&"; Hex(ll)

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Category: String Functions
Kind: function

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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.