Remove dependency on signed integer representation

1 files changed, 1 insertions, 1 deletions

diff --git a/utf.c b/utf.c
index 7891f7e..f6cefcd 100644
--- a/utf.c
+++ b/utf.c
@@ -33,7 +33,7 @@ utf8enc(unsigned char *s, uint_least32_t c)
 }
 
 size_t
-utf8dec(uint_least32_t *c, const char *s, size_t n)
+utf8dec(uint_least32_t *c, const unsigned char *s, size_t n)
 {
 	size_t i, l;
 	unsigned char b;