this keyword
| this keyword | Object pointer in member function |
primary-expr := this
|
The this keyword can be used only in nonstatic member functions. Its value is a pointer to the target object of a member function call. If the member function is qualified (with const or volatile), the same qualifiers apply to the type of this.
Example
struct point {
bool operator==(const point& that) {
return this->x() == that.x() && this->y() == that.y( );
}
bool operator!=(const point& that) {
return !(*this == that);
}
bool write(FILE* fp) {
fwrite(static_cast<void*>(this), sizeof(*this), 1, fp);
}
};
See Also
class, expression, Chapter 6
