Operator =[>] (Assign)


Assigns a value to a variable

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

Usage:
lhs = rhs
or
lhs => rhs (from fbc version 0.90)
or, in the QB dialect,
[ Let ] lhs = rhs
or
[ Let ] lhs => rhs (from fbc version 0.90)

Parameters:
lhs
The variable to assign to.
T1
Any numeric, boolean, 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 conversion of a boolean to an integer, false or true boolean value becomes 0 or -1 integer value). 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.
Assignment between arrays is not supported presently.

Avoid confusion with Operator = (Equal), which also uses the '=' symbol.
For this purpose and for solving some cases of ambiguity of the parser (see BYREF (function results)), the alternative symbol '=>' can be used for assignments (in place of '=') from fbc version 0.90 (same as already for the initializers).
Note: the '=>' symbol has been chosen against '<=' (already the operator 'Less Than Or Equal') and ':=' (':' used as statement separator).

This operator can be overloaded for user-defined types as a member Operator using the appropriate syntax.

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:
Differences from QB:
See also:
Back to Assignment Operators
Back to Operators
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