From: msebor <msebor@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Sun, 3 Feb 2019 21:48:27 +0000 (+0000)
Subject: PR c++/44648 - missing -Wunused warning on a const variable in if statement
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0ff407d45130e770e4860bafee546dabacf38999;p=thirdparty%2Fgcc.git

PR c++/44648 - missing -Wunused warning on a const variable in if statement

gcc/testsuite/ChangeLog:
	* g++.dg/warn/Wunused-var-35.C: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@268503 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 30ac08b77abb..3bcef91f752f 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2019-02-03  Martin Sebor  <msebor@redhat.com>
+
+	PR c++/44648
+	* g++.dg/warn/Wunused-var-35.C: New test.
+
 2019-02-03  Richard Biener  <rguenther@suse.de>
 
 	PR debug/87295
diff --git a/gcc/testsuite/g++.dg/warn/Wunused-var-35.C b/gcc/testsuite/g++.dg/warn/Wunused-var-35.C
new file mode 100644
index 000000000000..6e1308c8e03b
--- /dev/null
+++ b/gcc/testsuite/g++.dg/warn/Wunused-var-35.C
@@ -0,0 +1,19 @@
+// PR c++/44648 - missing -Wunused warning on a const variable in if statement
+// { dg-do compile }
+// { dg-options "-Wunused" }
+
+int main()
+{
+  bool b0 = 1;           // { dg-warning "\\\[-Wunused-variable\\\]" }
+  const bool b00 = 1;    // { dg-warning "\\\[-Wunused-variable\\\]" }
+  if (bool b1 = 1)       // { dg-warning "\\\[-Wunused-variable\\\]" }
+    return 0;
+  else
+    return 1;
+
+  if (const bool b2 = 1) // { dg-warning "\\\[-Wunused-variable\\\]" "bug" { xfail c++98_only } }
+    return 0;
+  else
+    return 1;
+}
+