FBWiki: KeyPgOpAssignment

Operator = (Assign)

Assigns a value to a variable

Syntax:declare operator Let ( byref lhs as T1, byref rhs as T2 )
Usage:lhs = rhs

or, in the QB dialect,

[ Let ] lhs = rhs
Parameters:

lhs

The variable to assign to.

T1

Any numeric, string or pointer type.

rhs

The value to assign to lhs.

T2

Any type convertible to T2.

Description:

This operator assigns the value of its right-hand side operand (rhs) to its left-hand side operand (lhs). The right-hand side operand must be implicitly convertible to the left-hand side type (T1). For example, you cannot assign a numeric value to a string type; to do that, first convert the numeric value to a string using Str or Wstr.

Avoid confusion with Operator = (Equal), which also uses the '=' symbol.

This operator can be overloaded for user-defined types.

Examples:

Dim i As Integer
i = 420 ' <- this is the assignment operator

If i = 69 Then '<-this is the equivalence operator
Print "ERROR: i should equal 420"
End -1
End If

Print "All is good."
End 0

' compile with -lang fblite or qb

#lang "fblite"

Dim i As Integer
Let i = 300 ' <-alternate syntax

Dialect Differences:

In the -lang qb dialect, this operator cannot be overloaded.
In the -lang qb dialect, an assignment expression can be preceded by the Let keyword.

Differences from QB:

None

See also:

Back to Assignment Operators

Back to Operators

FBWiki : KeyPgOpAssignment

Operator = (Assign)