Operator Delete
Operator to delete data allocated with the `New` operator
Syntax
`
Declare Operator Delete ( buf As Any Ptr )
Declare Operator delete[] ( buf As Any Ptr )
`
Usage
`
Delete expression
or
Delete[] expression
`
Parameters
`buf`
An address of memory to free.
`expression`
An address of memory to free.
Description
`Delete` is used to destroy and free the memory of an object created with New. When deleting a TYPE, its destructor will be called. `Delete` should only be used with addresses returned from `New`.
The array version of `Delete`, `Delete[]`, is used to destroy an array of objects previously created with New[]. Destructors will be called here as well.
`Delete` must be used with addresses returned from New, and `Delete[]` with New[]. You cannot mix and match the different versions of the operators.
Example
`
Type Rational
As Integer numerator, denominator
End Type
Scope
' Create and initialize a Rational, and store its address.
Dim p As Rational Ptr = New Rational(3, 4)
Print p->numerator & "/" & p->denominator
' Destroy the rational and give its memory back to the system.
Delete p
End Scope
Scope
' Allocate memory for 100 integers, store the address of the first one.
Dim p As Integer Ptr = New Integer[100]
' Assign some values to the integers in the array.
For i As Integer = 0 To 99
p[i] = i
Next
' Free the entire integer array.
Delete[] p
End Scope
`
Dialect Differences

- Only available in the -lang fb dialect.

Differences from QB

- New to FreeBASIC

See also

- `New`