regcomp.c: use new SvPVCLEAR and constant string friendly macros

diff --git a/regcomp.c b/regcomp.c
index 634a320..68417ff 100644 (file)
--- a/regcomp.c
+++ b/regcomp.c
@@ -18893,7 +18893,7 @@ Perl_regprop(pTHX_ const regexp *prog, SV *sv, const regnode *o, const regmatch_
 
     PERL_ARGS_ASSERT_REGPROP;
 
-    sv_setpvs(sv, "");
+    SvPVCLEAR(sv);
 
     if (OP(o) > REGNODE_MAX)           /* regnode.type is unsigned */
        /* It would be nice to FAIL() here, but this may be called from
@@ -20536,7 +20536,7 @@ S_dumpuntil(pTHX_ const regexp *r, const regnode *start, const regnode *node,
 #endif
            const regnode *nextbranch= NULL;
            I32 word_idx;
-            sv_setpvs(sv, "");
+            SvPVCLEAR(sv);
            for (word_idx= 0; word_idx < (I32)trie->wordcount; word_idx++) {
                SV ** const elem_ptr = av_fetch(trie_words,word_idx,0);