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-rw-r--r--src/test/ui/const-generics/issues/issue-72352.rs22
1 files changed, 22 insertions, 0 deletions
diff --git a/src/test/ui/const-generics/issues/issue-72352.rs b/src/test/ui/const-generics/issues/issue-72352.rs
new file mode 100644
index 000000000..2fa1d7a53
--- /dev/null
+++ b/src/test/ui/const-generics/issues/issue-72352.rs
@@ -0,0 +1,22 @@
+// revisions: full min
+#![cfg_attr(full, feature(adt_const_params))]
+#![cfg_attr(full, allow(incomplete_features))]
+
+use std::ffi::{CStr, CString};
+
+unsafe fn unsafely_do_the_thing<const F: fn(&CStr) -> usize>(ptr: *const i8) -> usize {
+ //~^ ERROR: using function pointers as const generic parameters is forbidden
+ F(CStr::from_ptr(ptr))
+}
+
+fn safely_do_the_thing(s: &CStr) -> usize {
+ s.to_bytes().len()
+}
+
+fn main() {
+ let baguette = CString::new("baguette").unwrap();
+ let ptr = baguette.as_ptr();
+ println!("{}", unsafe {
+ unsafely_do_the_thing::<safely_do_the_thing>(ptr)
+ });
+}