inline.h: Use 'do {} while' instead of 'while {}'

diff --git a/inline.h b/inline.h
index 638f818..0d43656 100644 (file)
--- a/inline.h
+++ b/inline.h
@@ -1597,9 +1597,9 @@ Perl_utf8_hop_back(const U8 *s, SSize_t off, const U8 *start)
     assert(off <= 0);
 
     while (off++ && s > start) {
-        s--;
-        while (UTF8_IS_CONTINUATION(*s) && s > start)
+        do {
             s--;
+        } while (UTF8_IS_CONTINUATION(*s) && s > start);
     }
     
     GCC_DIAG_IGNORE(-Wcast-qual)