Function std::intrinsics::needs_drop
[−]
[src]
pub unsafe extern "rust-intrinsic" fn needs_drop<T>() -> bool
Unstable (
core_intrinsics
): intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library
Returns true
if the actual type given as T
requires drop
glue; returns false
if the actual type provided for T
implements Copy
.
If the actual type neither requires drop glue nor implements
Copy
, then may return true
or false
.