LSET

• Source: https://www.freebasic.net/wiki/wikka.php?wakka=KeyPgLset
• Last revised: 2025-07-06

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Left-justifies a string

Syntax

declare sub Lset ( byref dst as string, byref src as const string )
declare sub Lset ( byval dst as wstring ptr, byval src as const wstring ptr )

Usage

Lset dst, src
Lset dst_udt, src_udt

Parameters

dst

String String to receive the data.

src

Source String to get the data.

dst_udt

User defined Type to receive the data.

src_udt

User defined Type to copy the data from.

Description

Lset left justifies text into the string buffer dst, filling the left part of the string with src and the right part with spaces. The string buffer size is not modified.

If text is too long for the string buffer size, Lset truncates characters from the right.

For compatibility with QBasic, Lset can also copy a user defined type variable into another one. The copy is made byte for byte, without any care for fields or alignment. It's up to the programmer to take care for the validity of the result.

Examples

start GeSHi

Dim buffer As String
buffer = Space(10)
LSet buffer, "91.5"
Print "-[" & buffer & "]-"

end GeSHi

Output:

-[91.5      ]-

start GeSHi

Type mytype1
    x As Integer
    y As Integer
End Type

Type mytype2
    z As Integer
End Type

Dim a As mytype1 , b As mytype2
b.z = 1234

LSet a, b
Print a.x

end GeSHi

Differences from QB

• In QB, the syntax was Lset dst = src. That syntax is also supported by FB.

See also

• Rset
• Space
• Put (File I/O)
• Mkd
• Mki
• Mkl
• Mks

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