Function cuda_free

crates/cust/src/memory/malloc.rs:174–181

Free memory allocated with [`cuda_malloc`](fn.cuda_malloc.html). # Errors If freeing memory fails, returns the CUDA error value. If the given pointer is null, returns InvalidValue. # Safety The given pointer must have been allocated with `cuda_malloc`, or null. The caller is responsible for ensuring that no other pointers to the deallocated buffer exist. # Examples ``` # let _context = cust:

(ptr: DevicePointer<T>)

/// }
/// ```
pub unsafe fn cuda_free<T: DeviceCopy>(ptr: DevicePointer<T>) -> CudaResult<()> {
    if ptr.is_null() {
        return Err(CudaError::InvalidMemoryAllocation);
    }

    cuda::cuMemFree_v2(ptr.as_raw()).to_result()?;
    Ok(())
}

/// Free memory allocated with [`cuda_malloc_unified`](fn.cuda_malloc_unified.html).
///