description

# operator - method

Pointer<T> operator -(

1. int offset

)

A pointer to the `offset`th `T` before this one.

Equivalent to `this + (-offset)`.

Returns a pointer to the `T` whose address is `offset` times the size of `T` before the address of this pointer. That is, `(this - offset).address == this.address - offset * sizeOf<T>()`.

Also, `(this - offset).value` is equivalent to `this[-offset]`, and similarly for setting,

## Implementation

    external Pointer<T> operator -(int offset);