Operator Addition

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Operator + (Addition)

Sums two expressions

Syntax

Declare Operator + ( ByRef lhs As Integer, ByRef rhs As Integer ) As Integer
Declare Operator + ( ByRef lhs As UInteger, ByRef rhs As UInteger ) As UInteger
Declare Operator + ( ByRef lhs As Single, ByRef rhs As Single ) As Single
Declare Operator + ( ByRef lhs As Double, ByRef rhs As Double ) As Double
Declare Operator + ( ByRef lhs As T Pointer, ByRef rhs As Integer ) As T Pointer
Declare Operator + ( ByRef rhs As Integer, ByRef lhs As T Pointer ) As T Pointer
Declare Operator + ( ByRef lhs As T, ByRef rhs As Integer ) As T
Declare Operator + ( ByRef lhs As Integer, ByRef rhs As T ) As T

Parameters

• lhs
• rhs
• T

Description

When the left and right-hand side expressions are numeric values, Operator + (Add) returns the sum of the two values.

When the left and right-hand side expressions are string values, Operator + (Add) concatenates the two strings and returns the result.

If an integral value n is added to a T Pointer type, the operator performs pointer arithmetic on the address, returning the memory position of a T value, n indices away (assuming n is within bounds of a contiguous array of T values). This behaves differently from numeric addition, because the Integer value is scaled by SizeOf( T ).

Neither operand is modified in any way.

This operator can be overloaded to accept user-defined types.

Return Value

Returns the sum of two expressions.

Remarks

Usage

result = lhs+rhs

Dialect Differences

• In the -lang qb dialect, this operator cannot be overloaded.

Differences from QB

• None

See also

• Operator + (String Concatenation)
• Mathematical Functions

Examples

Dim n As Single

n = 4.75 + 5.25

Print n

will produce the output:

10

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Category: Operators
Kind: operator

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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.