diff options
Diffstat (limited to 'src/test/ui/const-generics/issues/issue-72352.rs')
-rw-r--r-- | src/test/ui/const-generics/issues/issue-72352.rs | 22 |
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) + }); +} |