Fix warnings in CMake source code.

Source/CTest/cmCTestMultiProcessHandler.cxx

@@ -251,7 +251,8 @@ bool cmCTestMultiProcessHandler::CheckOutput()
     this->TestRunningMap[test] = false;
     this->RunningTests.erase(p);
     this->WriteCheckpoint(test);
-    this->WriteCostData(test, p->GetTestResults().ExecutionTime);
+    this->WriteCostData(test, static_cast<float>(
+      p->GetTestResults().ExecutionTime));
     this->RunningCount -= GetProcessorsUsed(test);
     delete p;
     }
@@ -276,7 +277,7 @@ void cmCTestMultiProcessHandler::ReadCostData()
         cmSystemTools::SplitString(line.c_str(), ' ');
 
       int index = atoi(parts[0].c_str());
-      float cost = atof(parts[1].c_str());
+      float cost = static_cast<float>(atof(parts[1].c_str()));
       if(this->Properties[index] && this->Properties[index]->Cost == 0)
         {
         this->Properties[index]->Cost = cost;

Source/CTest/cmCTestTestHandler.cxx

@@ -574,16 +574,16 @@ int cmCTestTestHandler::ProcessHandler()
         }
       }
 
-    float percent = float(passed.size()) * 100.0f / total;
+    float percent = float(passed.size()) * 100.0f / float(total);
     if ( failed.size() > 0 &&  percent > 99)
       {
       percent = 99;
       }
-    
+
     cmCTestLog(this->CTest, HANDLER_OUTPUT, std::endl
                << static_cast<int>(percent + .5) << "% tests passed, "
-               << failed.size() << " tests failed out of " 
-               << total << std::endl); 
+               << failed.size() << " tests failed out of "
+               << total << std::endl);
     if(this->CTest->GetLabelSummary())
       {
       this->PrintLabelSummary();
@@ -1982,7 +1982,7 @@ bool cmCTestTestHandler::SetTestsProperties(
             }
           if ( key == "COST" )
             {
-            rtit->Cost = atof(val.c_str());
+            rtit->Cost = static_cast<float>(atof(val.c_str()));
             }
           if ( key == "RUN_SERIAL" )
             {

Source/cmHexFileConverter.cxx

@@ -172,8 +172,10 @@ cmHexFileConverter::FileType cmHexFileConverter::DetermineFileType(
     return Binary;
     }
 
-  buf[0] = 0;
-  (void) fgets(buf, 1024, inFile);
+  if(!fgets(buf, 1024, inFile))
+    {
+    buf[0] = 0;
+    }
   fclose(inFile);
   FileType type = Binary;
   unsigned int minLineLength = 0;

Source/cmSystemTools.cxx

@@ -915,8 +915,10 @@ bool RunCommandViaPopen(const char* command,
 #endif
     return false;
     }
-  buffer[0] = 0;
-  (void) fgets(buffer, BUFFER_SIZE, cpipe);
+  if (!fgets(buffer, BUFFER_SIZE, cpipe))
+    {
+    buffer[0] = 0;
+    }
   while(!feof(cpipe))
     {
     if(verbose)
@@ -924,8 +926,10 @@ bool RunCommandViaPopen(const char* command,
       cmSystemTools::Stdout(buffer);
       }
     output += buffer;
-    buffer[0] = 0;
-    (void) fgets(buffer, BUFFER_SIZE, cpipe);
+    if(!fgets(buffer, BUFFER_SIZE, cpipe))
+      {
+      buffer[0] = 0;
+      }
     }
 
   retVal = pclose(cpipe);

Source/cmakewizard.cxx

@@ -28,8 +28,10 @@ void cmakewizard::AskUser(const char* key,
   printf("Current Value: %s\n", iter.GetValue());
   printf("New Value (Enter to keep current value): ");
   char buffer[4096];
-  buffer[0] = 0;
-  (void) fgets(buffer, sizeof(buffer)-1, stdin);
+  if(!fgets(buffer, sizeof(buffer)-1, stdin))
+    {
+    buffer[0] = 0;
+    }
 
   if(strlen(buffer) > 0)
     {
@@ -65,8 +67,10 @@ bool cmakewizard::AskAdvanced()
 {
   printf("Would you like to see advanced options? [No]:");
   char buffer[4096];
-  buffer[0] = 0;
-  (void) fgets(buffer, sizeof(buffer)-1, stdin);
+  if(!fgets(buffer, sizeof(buffer)-1, stdin))
+    {
+    buffer[0] = 0;
+    }
   if(buffer[0])
     {
     if(buffer[0] == 'y' || buffer[0] == 'Y')