CTest: convert timeouts to std::chrono::duration

This commit continues the refactoring of CTest to adopt std::chrono.
After the last sets of changes that introduced std::chrono::steady_clock
and std::chrono::system_clock respectively, it makes sense to have all
the timeouts be stored as std::chrono::duration.

No functional change intended.

1 files changed, 11 insertions, 4 deletions

diff --git a/Source/CTest/cmCTestScriptHandler.cxx b/Source/CTest/cmCTestScriptHandler.cxx
index d2ad8c5..922f5c7 100644
--- a/Source/CTest/cmCTestScriptHandler.cxx
+++ b/Source/CTest/cmCTestScriptHandler.cxx
@@ -1,5 +1,12 @@
 /* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
    file Copyright.txt or https://cmake.org/licensing for details.  */
+
+#ifdef _WIN32
+/* windows.h defines min() and max() macros, unless told to otherwise. This
+ * interferes with std::min() and std::max() at the very least. */
+#define NOMINMAX
+#endif
+
 #include "cmCTestScriptHandler.h"
 
 #include "cmsys/Directory.hxx"
@@ -960,21 +967,21 @@ bool cmCTestScriptHandler::TryToRemoveBinaryDirectoryOnce(
   return cmSystemTools::RemoveADirectory(directoryPath);
 }
 
-double cmCTestScriptHandler::GetRemainingTimeAllowed()
+std::chrono::duration<double> cmCTestScriptHandler::GetRemainingTimeAllowed()
 {
   if (!this->Makefile) {
-    return 1.0e7;
+    return std::chrono::duration<double>::max();
   }
 
   const char* timelimitS = this->Makefile->GetDefinition("CTEST_TIME_LIMIT");
 
   if (!timelimitS) {
-    return 1.0e7;
+    return std::chrono::duration<double>::max();
   }
 
   auto timelimit = std::chrono::duration<double>(atof(timelimitS));
 
   auto duration = std::chrono::duration_cast<std::chrono::duration<double>>(
     std::chrono::steady_clock::now() - this->ScriptStartTime);
-  return (timelimit - duration).count();
+  return (timelimit - duration);
 }