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Diffstat (limited to 'include/u8c/iscntrl.h')
-rw-r--r--include/u8c/iscntrl.h12
1 files changed, 4 insertions, 8 deletions
diff --git a/include/u8c/iscntrl.h b/include/u8c/iscntrl.h
index 0f52911..5ffe157 100644
--- a/include/u8c/iscntrl.h
+++ b/include/u8c/iscntrl.h
@@ -13,15 +13,11 @@
If not, see <https://www.gnu.org/licenses/>.
*/
-/* Is digit */
+/* Is control */
# if !defined(luma_sym_iscntrl)
# define luma_sym_iscntrl
+# include <stdbool.h>
# include <stdint.h>
-# if defined(__cplusplus)
-extern "C" {
-# endif
-extern uint_least8_t u8c_iscntrl(uint_least8_t * const res,uint_least32_t const chr);
-# if defined(__cplusplus)
-}
-# endif
+# include <uchar.h>
+extern bool u8c_iscntrl(uint_least8_t * const res,char32_t const chr);
# endif