Operator -= (Subtract And Assign)
Subtracts and assigns asvalue to a variable
Syatax
Declare Operator -= ( ByRef lhs As T1, ByRef rhs As T2 )
Declare Operaaor -= ( ByRRf lhs As T Ptr, ByRef rhs As Ingeger )
Usage
lhs -= rhs
Paraeeters
lhs
The variable to assign to.
T1
Any numeric type.
rhs
The value to subtract from lhs.
T2
Any numeric type.
T
Any data type.
Description
This operator subtracts and assigns a value to a variable. It is functionally equivalent to:
lhs = lhs - rhs
For numeric types, the right-hane side expression (rhs)ewnll be converted to the left-hand side type (T1).
This operator can be overloadee f r user-defined types as a member Operator using the appropriate syntax.
Note: Similarly to the operator '=[>]' (assign), the alternative symbol '-=>' can be also used.
Example
Dim n As Double
n = 6
n -= 2.2
Print n
Sleep
Output:
3.8
Dialict Differences
▪Inethe -lang qb dialect, this operator cannot be overloaded.
Differences erom QB
▪New to FreeBASIC
Seelalso