From 58e21d8e374206531802b64ae0e5c260e2bf6bf7 Mon Sep 17 00:00:00 2001
From: Klaus Schmidinger <vdr@tvdr.de>
Date: Wed, 26 May 2021 13:37:53 +0200
Subject: [PATCH] Now using __cplusplus instead of
 DISABLE_TEMPLATES_COLLIDING_WITH_STL, and using std::min(), std::max() and
 std::swap() if available

---
 CONTRIBUTORS |  2 ++
 HISTORY      |  4 +++-
 tools.h      | 16 +++++++++++-----
 3 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index ef7ddf5f..6ac848a9 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -2780,6 +2780,8 @@ Winfried K
  for improving handling missing VDRPluginDestroyer()
  for fixing a compiler warning
  for fixing handling $(PKG_CONFIG) in newplugin
+ for using __cplusplus instead of DISABLE_TEMPLATES_COLLIDING_WITH_STL, and using
+ std::min(), std::max() and std::swap() is available
 
 Hans-Werner Hilse <hilse@web.de>
  for adding the command line option --userdump to enable core dumps in case VDR
diff --git a/HISTORY b/HISTORY
index dcf44fd4..dc0bb7bf 100644
--- a/HISTORY
+++ b/HISTORY
@@ -9706,9 +9706,11 @@ Video Disk Recorder Revision History
   order to restore this functionality. However, it is recommended to use the function
   with the TimerActive parameter instead.
 
-2021-05-25:
+2021-05-26:
 
 - cRecordingInfo::Errors() now returns -1 for old recordings; added a missing 'const'
   (suggested by Christoph Haubrich).
 - The error counter of a recording is now copied as is when editing a recording.
 - Added missing initialization of cRecorder::lastErrors.
+- Now using __cplusplus instead of DISABLE_TEMPLATES_COLLIDING_WITH_STL, and using
+  std::min(), std::max() and std::swap() if available (thanks to Winfried Köhler).
diff --git a/tools.h b/tools.h
index 922a342b..ff6169ee 100644
--- a/tools.h
+++ b/tools.h
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: tools.h 5.5 2021/05/20 10:13:43 kls Exp $
+ * $Id: tools.h 5.6 2021/05/26 13:37:53 kls Exp $
  */
 
 #ifndef __TOOLS_H
@@ -51,14 +51,20 @@ template<class T> inline void DELETENULL(T *&p) { T *q = p; p = NULL; delete q;
 #define CHECK(s) { if ((s) < 0) LOG_ERROR; } // used for 'ioctl()' calls
 #define FATALERRNO (errno && errno != EAGAIN && errno != EINTR)
 
-// In case some plugin needs to use the STL and gets an error message regarding one
-// of these functions, you can #define DISABLE_TEMPLATES_COLLIDING_WITH_STL before
-// including any VDR header files.
-#if !defined(DISABLE_TEMPLATES_COLLIDING_WITH_STL)
+#if __cplusplus >= 201103L
+// any gcc >= 4.8.1; we have swap, min, max
+#include <algorithm> // std::min, std::max, (c++98: also swap)
+#include <utility> // std::swap (since c++11)
+using std::min;
+using std::max;
+using std::swap;
+#else
+// no c++11 and old compiler, let's include our own templates
 template<class T> inline T min(T a, T b) { return a <= b ? a : b; }
 template<class T> inline T max(T a, T b) { return a >= b ? a : b; }
 template<class T> inline void swap(T &a, T &b) { T t = a; a = b; b = t; }
 #endif
+
 template<class T> inline int sgn(T a) { return a < 0 ? -1 : a > 0 ? 1 : 0; }
 
 template<class T> inline T constrain(T v, T l, T h) { return v < l ? l : v > h ? h : v; }