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

[perl5.git] / op.c

diff --git a/op.c b/op.c
index 34c9a60..ebbbf81 100644 (file)
--- a/op.c
+++ b/op.c
@@ -8205,7 +8205,7 @@ Perl_newMYSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block)
            CvSTASH_set(cv, PL_curstash);
            *spot = cv;
        }
-       sv_setpvs(MUTABLE_SV(cv), "");  /* prototype is "" */
+        SvPVCLEAR(MUTABLE_SV(cv));  /* prototype is "" */
        CvXSUBANY(cv).any_ptr = const_sv;
        CvXSUB(cv) = const_sv_xsub;
        CvCONST_on(cv);
@@ -8657,7 +8657,7 @@ Perl_newATTRSUB_x(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs,
        if (cv) {
            assert(!CvROOT(cv) && !CvCONST(cv));
            cv_forget_slab(cv);
-           sv_setpvs(MUTABLE_SV(cv), "");  /* prototype is "" */
+            SvPVCLEAR(MUTABLE_SV(cv));  /* prototype is "" */
            CvXSUBANY(cv).any_ptr = const_sv;
            CvXSUB(cv) = const_sv_xsub;
            CvCONST_on(cv);
@@ -10162,7 +10162,7 @@ Perl_ck_fun(pTHX_ OP *o)
                                if (want_dollar && *name != '$')
                                    sv_setpvs(namesv, "$");
                                else
-                                   sv_setpvs(namesv, "");
+                                    SvPVCLEAR(namesv);
                                sv_catpvn(namesv, name, len);
                                 if ( name_utf8 ) SvUTF8_on(namesv);
                            }