From 8ce8d00bf311533576ca1fd5911515603d5f9b2c Mon Sep 17 00:00:00 2001
From: Janis Born <janis.born@rwth-aachen.de>
Date: Mon, 23 Nov 2015 09:49:36 +0100
Subject: [PATCH] suppress 'unused variable' warnings for benchmark dummy
 variables

---
 src/Benchmark/VectorT.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Benchmark/VectorT.cpp b/src/Benchmark/VectorT.cpp
index 87c00454..348915b5 100644
--- a/src/Benchmark/VectorT.cpp
+++ b/src/Benchmark/VectorT.cpp
@@ -45,6 +45,7 @@ static void ASSEMBLE(BMPOSTFIX, Vec_add_compare)(benchmark::State& state) {
     // Just so nothing gets optimized away.
     static double dummy;
     dummy = v1.norm() + v2.norm();
+    static_cast<void>(dummy);
 }
 
 MYBENCHMARK_TEMPLATE (ASSEMBLE(BMPOSTFIX, Vec_add_compare), OpenMesh::Vec3d);
@@ -64,6 +65,7 @@ static void ASSEMBLE(BMPOSTFIX, Vec_cross_product)(benchmark::State& state) {
     // Just so nothing gets optimized away.
     static double dummy;
     dummy = v1.norm() + v2.norm();
+    static_cast<void>(dummy);
 }
 
 MYBENCHMARK_TEMPLATE (ASSEMBLE(BMPOSTFIX, Vec_cross_product), OpenMesh::Vec3d);
@@ -82,6 +84,7 @@ static void ASSEMBLE(BMPOSTFIX, Vec_scalar_product)(benchmark::State& state) {
     // Otherwise GCC will optimize everything away.
     static double dummy;
     dummy = acc;
+    static_cast<void>(dummy);
 }
 
 MYBENCHMARK_TEMPLATE (ASSEMBLE(BMPOSTFIX, Vec_scalar_product), OpenMesh::Vec3d);
@@ -100,6 +103,7 @@ static void ASSEMBLE(BMPOSTFIX, Vec_norm)(benchmark::State& state) {
     // Otherwise GCC will optimize everything away.
     static double dummy;
     dummy = acc;
+    static_cast<void>(dummy);
 }
 
 MYBENCHMARK_TEMPLATE (ASSEMBLE(BMPOSTFIX, Vec_norm), OpenMesh::Vec3d);
@@ -118,6 +122,7 @@ static void ASSEMBLE(BMPOSTFIX, Vec_times_scalar)(benchmark::State& state) {
     // Otherwise GCC will optimize everything away.
     static double dummy;
     dummy = v1.norm();
+    static_cast<void>(dummy);
 }
 
 MYBENCHMARK_TEMPLATE (ASSEMBLE(BMPOSTFIX, Vec_times_scalar), OpenMesh::Vec3d);