//@ignore-target-windows: No libc on Windows #![feature(rustc_private)] /// Test that destroying a pthread_mutex twice fails, even without a check for number validity fn main() { unsafe { use core::mem::MaybeUninit; let mut attr = MaybeUninit::::uninit(); libc::pthread_mutexattr_init(attr.as_mut_ptr()); let mut mutex = MaybeUninit::::uninit(); libc::pthread_mutex_init(mutex.as_mut_ptr(), attr.as_ptr()); libc::pthread_mutex_destroy(mutex.as_mut_ptr()); libc::pthread_mutex_destroy(mutex.as_mut_ptr()); //~^ ERROR: Undefined Behavior: using uninitialized data, but this operation requires initialized memory } }