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Add a test case for using NonNull::new in const context
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@ -16,7 +16,9 @@
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#![feature(const_maybe_uninit_as_mut_ptr)]
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#![feature(const_maybe_uninit_assume_init)]
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#![feature(const_maybe_uninit_assume_init_read)]
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#![feature(const_nonnull_new)]
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#![feature(const_num_from_num)]
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#![feature(const_ptr_as_ref)]
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#![feature(const_ptr_read)]
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#![feature(const_ptr_write)]
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#![feature(const_ptr_offset)]
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@ -274,6 +274,21 @@ fn test_unsized_nonnull() {
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assert!(ys == zs);
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}
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#[test]
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fn test_const_nonnull_new() {
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const {
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assert!(NonNull::new(core::ptr::null_mut::<()>()).is_none());
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let value = &mut 0u32;
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let mut ptr = NonNull::new(value).unwrap();
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unsafe { *ptr.as_mut() = 42 };
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let reference = unsafe { &*ptr.as_ref() };
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assert!(*reference == *value);
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assert!(*reference == 42);
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};
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}
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#[test]
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#[allow(warnings)]
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// Have a symbol for the test below. It doesn’t need to be an actual variadic function, match the
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