From: Jason Merrill <jason@redhat.com>
Date: Tue, 15 Mar 2022 20:23:47 +0000 (-0400)
Subject: c++: add comment
X-Git-Tag: basepoints/gcc-13~451
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f8093854c78f820a4f0202fd4db7bba0ee0573c8;p=thirdparty%2Fgcc.git

c++: add comment

gcc/cp/ChangeLog:

	* pt.cc (determine_specialization): Add comment.
---

diff --git a/gcc/cp/pt.cc b/gcc/cp/pt.cc
index cd07e48cb5a0..ece839c22e33 100644
--- a/gcc/cp/pt.cc
+++ b/gcc/cp/pt.cc
@@ -2325,6 +2325,8 @@ determine_specialization (tree template_id,
 		continue;
 	      if (freq)
 		{
+		  /* C++20 CA104: Substitute directly into the
+		     constraint-expression.  */
 		  tree fargs = DECL_TI_ARGS (fn);
 		  tsubst_flags_t complain = tf_none;
 		  freq = tsubst_constraint (freq, fargs, complain, fn);