Struct oaidl::Ptr

source ·
pub struct Ptr<T> { /* private fields */ }
Expand description

Convenience type for holding value of *mut T Mostly just a projection of NonNull<T> functionality

Implementations§

Wraps a valid NonNull<T> NonNull<T>: https://doc.rust-lang.org/nightly/core/ptr/struct.NonNull.html

Checks a *mut T for null and wraps it up for easier handling.

Get inner ptr

Get inner reference

Safety

The underlying .as_ref call is unsafe so this is unsafe as well, in order to propagate the unsafety invariant forward.

The lifetime of the provided reference is tied to self.

If you need an unbound lifetime, use &*my_ptr.as_ptr() instead.

Cast a Ptr<T> to Ptr<U>

Trait Implementations§

Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more

Free, zero-allocation conversion from NonNull<T>

Feeds this value into the given Hasher. Read more
Feeds a slice of this type into the given Hasher. Read more

Need to use Into because of orphan rules

This method tests for self and other values to be equal, and is used by ==. Read more
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more
This method returns an ordering between self and other values if one exists. Read more
This method tests less than (for self and other) and is used by the < operator. Read more
This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
This method tests greater than (for self and other) and is used by the > operator. Read more
This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

Formats Ptr<T> as a pointer value (ie, hexadecimal)

Unwraps the Ptr with [as_ptr()]

Unwraps the Ptr with [as_ptr()]

Converts a Variant<D, T> to a Ptr<VARIANT> where D: VariantExt<T> This converts the value inside Variant into a Ptr which is then stuffed inside a containing variant by the caller of the method.

Converts a Variant<D, T> to a Ptr<VARIANT> where D: VariantExt<T> This converts the value inside Variant into a Ptr which is then stuffed inside a containing variant by the caller of the method.

SafeArrayElementimpl for ['Ptr<IDispatch>']. This allows it to be converted into SAFEARRAY with vt =VT_DISPATCH. This overrides the default impl of from_safearrayandinto_safearray` because *mut IDispatch doesn’t need an additional indirection to be put into a SAFEARRAY.

SafeArrayElementimpl for ['Ptr<IUnknown>']. This allows it to be converted into SAFEARRAY with vt =VT_UNKNOWN. This overrides the default impl of from_safearrayandinto_safearray` because *mut IUnknown doesn’t need an additional indirection to be put into a SAFEARRAY.

Auto Trait Implementations§

Blanket Implementations§

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
Uses borrowed data to replace owned data, usually by cloning. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.