silence cast_lossless clippy lint from triggering inside macros

src/header/inttypes/mod.rs

@@ -73,6 +73,7 @@ pub unsafe extern "C" fn strtoumax(
 }
 
 /// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/wcstoimax.html>.
+#[expect(clippy::cast_lossless)] // not all users of `wcsto_impl!` are lossless
 #[unsafe(no_mangle)]
 pub unsafe extern "C" fn wcstoimax(
     mut ptr: *const wchar_t,

src/header/stdio/scanf.rs

@@ -30,6 +30,7 @@ macro_rules! wc_as_char {
     };
 }
 
+#[expect(clippy::cast_lossless)] // not all users of `parse_type!` are lossless
 pub unsafe fn inner_scanf<T: Kind>(
     mut r: Reader<T>,
     format: Reader<T>,

src/header/stdlib/mod.rs

@@ -1473,6 +1473,7 @@ pub unsafe fn convert_integer(s: *const c_char, base: c_int) -> Option<(c_ulong,
 }
 
 /// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/strtod.html>.
+#[expect(clippy::cast_lossless)] // not all users of `strto_float_impl!` are lossless
 #[unsafe(no_mangle)]
 pub unsafe extern "C" fn strtod(s: *const c_char, endptr: *mut *mut c_char) -> c_double {
     strto_float_impl!(c_double, s, endptr)

src/header/wchar/mod.rs

@@ -863,6 +863,7 @@ pub unsafe extern "C" fn wcstol(
 }
 
 /// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/wcstoll.html>.
+#[expect(clippy::cast_lossless)] // not all users of `wcsto_impl!` are lossless
 #[unsafe(no_mangle)]
 pub unsafe extern "C" fn wcstoll(
     mut ptr: *const wchar_t,