Function std::intrinsics::assert_uninit_valid
pub unsafe extern "rust-intrinsic" fn assert_uninit_valid<T>()
core_intrinsics)intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library
A guard for unsafe functions that cannot ever be executed if T has invalid bit patterns: This will statically either panic, or do nothing.
This intrinsic does not have a stable counterpart.
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Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/intrinsics/fn.assert_uninit_valid.html