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-rw-r--r--enc/unicode.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/enc/unicode.c b/enc/unicode.c
index f0ef89880f..975fc2648e 100644
--- a/enc/unicode.c
+++ b/enc/unicode.c
@@ -188,12 +188,12 @@ onigenc_utf16_32_get_ctype_code_range(OnigCtype ctype, OnigCodePoint* sb_out,
#define PROPERTY_NAME_MAX_SIZE (MAX_WORD_LENGTH + 1)
extern int
-onigenc_unicode_property_name_to_ctype(OnigEncoding enc, UChar* name, UChar* end)
+onigenc_unicode_property_name_to_ctype(OnigEncoding enc, const UChar* name, const UChar* end)
{
int len;
int ctype;
UChar buf[PROPERTY_NAME_MAX_SIZE];
- UChar *p;
+ const UChar *p;
OnigCodePoint code;
len = 0;