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authorMartin Sebor <msebor@redhat.com>2019-02-03 21:48:27 +0000
committerMartin Sebor <msebor@gcc.gnu.org>2019-02-03 14:48:27 -0700
commit0b841214a8c8a56d4c4d391fddf780faba3f5748 (patch)
treefe1a6d5131772f7c81ca4b0ac8ed6fbe7f14bdd5
parent6090f915917f433509168b20c2ea9c3b4096c024 (diff)
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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. From-SVN: r268503
-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/g++.dg/warn/Wunused-var-35.C19
2 files changed, 24 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 30ac08b..3bcef91 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 0000000..6e1308c
--- /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;
+}
+