Struct c_vec::CVec [] [src]

pub struct CVec<T> { /* fields omitted */ }

The type representing a foreign chunk of memory

Methods

impl<T> CVec<T>
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Create a CVec from a raw pointer to a buffer with a given length.

Panics if the given pointer is null. The returned vector will not attempt to deallocate the vector when dropped.

Arguments

  • base - A unique pointer to a buffer
  • len - The number of elements in the buffer

Create a CVec from a foreign buffer, with a given length, and a function to run upon destruction.

Panics if the given pointer is null.

Arguments

  • base - A unique pointer to a buffer
  • len - The number of elements in the buffer
  • dtor - A fn to run when the value is destructed, useful for freeing the buffer, etc. base will be passed to it as an argument.

Retrieves an element at a given index, returning None if the requested index is greater than the length of the vector.

Retrieves a mutable element at a given index, returning None if the requested index is greater than the length of the vector.

Unwrap the pointer without running the destructor

This method retrieves the underlying pointer, and in the process destroys the CVec but without running the destructor. A use case would be transferring ownership of the buffer to a C function, as in this case you would not want to run the destructor.

Note that if you want to access the underlying pointer without cancelling the destructor, you can simply call transmute on the return value of get(0).

Returns the number of items in this vector.

Returns whether this vector is empty.

Convert to CSlice

Trait Implementations

impl<T> Drop for CVec<T>
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A method called when the value goes out of scope. Read more

impl<T> AsRef<[T]> for CVec<T>
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View the stored data as a slice.

impl<T> AsMut<[T]> for CVec<T>
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View the stored data as a slice.

impl<T: Clone> Into<Vec<T>> for CVec<T>
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Performs the conversion.