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Perl_sv_vcatpvfn_flags: add %n code comment
[perl5.git] / sv.c
diff --git a/sv.c b/sv.c
index 5fc3b89..3bcaa50 100644 (file)
--- a/sv.c
+++ b/sv.c
@@ -13009,6 +13009,8 @@ Perl_sv_vcatpvfn_flags(pTHX_ SV *const sv, const char *const pat, const STRLEN p
                 int i;
                 if (vectorize)
                     goto unknown;
+                /* XXX ideally we should warn if any flags etc have been
+                 * set, e.g. "%-4.5n" */
                 /* XXX if sv was originally non-utf8 with a char in the
                  * range 0x80-0xff, then if it got upgraded, we should
                  * calculate char len rather than byte len here */