operator - method - AbiSpecificIntegerPointer extension - dart:ffi library (original) (raw)

description

Pointer<T> operator -(

1. int offset )

A pointer to the offsetth T before this one.

Equivalent to this + (-offset).

Returns a pointer to the T whose address isoffset 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);