[−][src]Function std::intrinsics::needs_drop
pub extern "rust-intrinsic" fn needs_drop<T>() -> bool
🔬 This is a nightly-only experimental API. (core_intrinsics
#0)
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
.
The stabilized version of this intrinsic is
std::mem::needs_drop
.