obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 39 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/warn/effc2.C b/gcc/testsuite/g++.dg/warn/effc2.C
new file mode 100644
index 000000000..fb765f0d8
--- /dev/null
+++ b/gcc/testsuite/g++.dg/warn/effc2.C
@@ -0,0 +1,39 @@
+// { dg-do compile }
+// { dg-options "-Weffc++" }
+// Contributed by Benjamin Kosnik <bkoz at redhat dot com>
+// PR c++/16169 : Improve -Weffc++ rule 15
+
+struct A {
+ const A& foo();
+ const A& operator=(int)
+ { return foo(); }
+};
+
+struct B {
+  B& foo();
+  B& operator=(int)
+  { return foo(); }
+};
+
+struct C {
+  C& operator=(int)
+  { return *this; }
+};
+
+struct D {
+  D operator=(int)
+  { return *this; }      // { dg-warning "should return a reference" }
+};
+
+struct E {
+  E& foo();
+  E operator=(int)
+  { return foo(); }      // { dg-warning "should return a reference" }
+};
+
+struct F
+{
+  operator float();
+  float operator=(int)
+  { return *this; }      // { dg-warning "should return a reference" }
+};