opencv 0.5.3

Rust bindings for OpenCV
Documentation 
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extern "C" {
   #[doc(hidden)] fn cv_new_VectorOfPtrOfBackendWrapper() -> *mut c_void;
   #[doc(hidden)] fn cv_delete_VectorOfPtrOfBackendWrapper(ptr: *mut c_void);
   #[doc(hidden)] fn cv_push_VectorOfPtrOfBackendWrapper(ptr: *mut c_void, ptr2: *const c_void);
   #[doc(hidden)] fn cv_VectorOfPtrOfBackendWrapper_len(ptr: *mut c_void) -> i32;
   #[doc(hidden)] fn cv_VectorOfPtrOfBackendWrapper_get(ptr: *mut c_void, index: i32) -> *mut c_void;
}

#[allow(dead_code)]
pub struct VectorOfPtrOfBackendWrapper {
    pub(crate) ptr: *mut c_void
}

impl VectorOfPtrOfBackendWrapper {
    pub fn new() -> Self {
        unsafe { Self { ptr: cv_new_VectorOfPtrOfBackendWrapper() } }
    }

    pub fn len(&self) -> i32 {
        unsafe { cv_VectorOfPtrOfBackendWrapper_len(self.ptr) }
    }

    #[doc(hidden)]
    pub fn as_raw_VectorOfPtrOfBackendWrapper(&self) -> *mut c_void {
        self.ptr
    }
}

impl Drop for VectorOfPtrOfBackendWrapper {
    fn drop(&mut self) {
        unsafe { cv_delete_VectorOfPtrOfBackendWrapper(self.ptr) };
    }
}
// BoxedClassTypeInfo
impl VectorOfPtrOfBackendWrapper {
    pub fn push(&mut self, val: types::PtrOfBackendWrapper) {
        unsafe { cv_push_VectorOfPtrOfBackendWrapper(self.ptr, val.ptr) }
    }

    pub fn get(&self, index: i32) -> types::PtrOfBackendWrapper {
        types::PtrOfBackendWrapper { ptr: unsafe { cv_VectorOfPtrOfBackendWrapper_get(self.ptr, index) } }
    }

    pub fn to_vec(&self) -> Vec<types::PtrOfBackendWrapper> {
        (0..self.len()).map(|x| self.get(x)).collect()
    }
}