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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/consts/const-eval/const_fn_ptr.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/consts/const-eval/const_fn_ptr.rs')
-rw-r--r-- | src/test/ui/consts/const-eval/const_fn_ptr.rs | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/src/test/ui/consts/const-eval/const_fn_ptr.rs b/src/test/ui/consts/const-eval/const_fn_ptr.rs new file mode 100644 index 000000000..b3c677c69 --- /dev/null +++ b/src/test/ui/consts/const-eval/const_fn_ptr.rs @@ -0,0 +1,36 @@ +// run-pass +// compile-flags: -Zunleash-the-miri-inside-of-you + +fn double(x: usize) -> usize { x * 2 } +const fn double_const(x: usize) -> usize { x * 2 } + +const X: fn(usize) -> usize = double; +const X_CONST: fn(usize) -> usize = double_const; + +const fn bar(x: usize) -> usize { + X(x) +} + +const fn bar_const(x: usize) -> usize { + X_CONST(x) +} + +const fn foo(x: fn(usize) -> usize, y: usize) -> usize { + x(y) +} + +fn main() { + const Y: usize = bar_const(2); + assert_eq!(Y, 4); + let y = bar_const(2); + assert_eq!(y, 4); + let y = bar(2); + assert_eq!(y, 4); + + const Z: usize = foo(double_const, 2); + assert_eq!(Z, 4); + let z = foo(double_const, 2); + assert_eq!(z, 4); + let z = foo(double, 2); + assert_eq!(z, 4); +} |