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-rw-r--r--encoding.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/encoding.c b/encoding.c
index 83607d5103..a7950a8251 100644
--- a/encoding.c
+++ b/encoding.c
@@ -420,7 +420,8 @@ enc_ascii_compatible_p(VALUE enc)
int
rb_enc_unicode_p(rb_encoding *enc)
{
- return rb_utf8_encoding()->is_code_ctype == enc->is_code_ctype;
+ const char *name = rb_enc_name(enc);
+ return name[0] == 'U' && name[1] == 'T' && name[2] == 'F' && name[4] != '7';
}
static const char *