Merge pull request #47394 from smuzaffar/fix-testPhysicsToolsMVAComputer

Do not fail unit test due to undefined behavior

Author: cmsbuild

PhysicsTools/MVAComputer/test/testBitSet.cppunit.cc

@@ -52,7 +52,11 @@ void testBitSet::bitManipulationTest() {
   // so if neg != bit it is from the undefined
   // behavior
   CPPUNIT_ASSERT(bit(31) == 0x80000000);
-  CPPUNIT_ASSERT(neg(31) == 0x80000000);
+  //Print a warnings instead of failure due to undefined behavior
+  //CPPUNIT_ASSERT(neg(31) == 0x80000000);
+  if (neg(31) != 0x80000000) {
+    std::cout << "Warning: Due to undefined behavior neg(31) != 0x80000000." << std::endl;
+  }
 }
 
 void testBitSet::multiWordTest() {