From 657e78165c0fcc6cb28aa18a8ffd7ae904222015 Mon Sep 17 00:00:00 2001
From: ageay <ageay>
Date: Tue, 20 Aug 2013 11:10:50 +0000
Subject: [PATCH] Writing binary VTK files in MEDCoupling

---
 src/MEDCoupling/MEDCouplingRefCountObject.cxx | 22 +++++++++++++++++++
 src/MEDCoupling/MEDCouplingRefCountObject.hxx |  2 ++
 src/MEDCoupling_Swig/MEDCouplingCommon.i      |  2 ++
 3 files changed, 26 insertions(+)

diff --git a/src/MEDCoupling/MEDCouplingRefCountObject.cxx b/src/MEDCoupling/MEDCouplingRefCountObject.cxx
index 443ae2cd8..7f9f493f6 100644
--- a/src/MEDCoupling/MEDCouplingRefCountObject.cxx
+++ b/src/MEDCoupling/MEDCouplingRefCountObject.cxx
@@ -46,6 +46,28 @@ int ParaMEDMEM::MEDCouplingSizeOfVoidStar()
   return 8*sizeof(std::size_t);
 }
 
+/*!
+ * If true is returned it is a LittleEndian machine.
+ * If false it is a BigEndian machine.
+ * \return the coding mode of integers of the machine.
+ */
+bool ParaMEDMEM::MEDCouplingByteOrder()
+{
+  unsigned int x(1);
+  unsigned char *xc(reinterpret_cast<unsigned char *>(&x));
+  return xc[0]==1;
+}
+
+const char *ParaMEDMEM::MEDCouplingByteOrderStr()
+{
+  static const char LITTLEENDIAN_STR[]="LittleEndian";
+  static const char BIGENDIAN_STR[]="BigEndian";
+  if(MEDCouplingByteOrder())
+    return LITTLEENDIAN_STR;
+  else
+    return BIGENDIAN_STR;
+}
+
 RefCountObject::RefCountObject():_cnt(1)
 {
 }
diff --git a/src/MEDCoupling/MEDCouplingRefCountObject.hxx b/src/MEDCoupling/MEDCouplingRefCountObject.hxx
index c52e0aff0..f5c99be4a 100644
--- a/src/MEDCoupling/MEDCouplingRefCountObject.hxx
+++ b/src/MEDCoupling/MEDCouplingRefCountObject.hxx
@@ -56,6 +56,8 @@ namespace ParaMEDMEM
   MEDCOUPLING_EXPORT int MEDCouplingVersion();
   MEDCOUPLING_EXPORT void MEDCouplingVersionMajMinRel(int& maj, int& minor, int& releas);
   MEDCOUPLING_EXPORT int MEDCouplingSizeOfVoidStar();
+  MEDCOUPLING_EXPORT bool MEDCouplingByteOrder();
+  MEDCOUPLING_EXPORT const char *MEDCouplingByteOrderStr();
 
   class MEDCOUPLING_EXPORT RefCountObject
   {
diff --git a/src/MEDCoupling_Swig/MEDCouplingCommon.i b/src/MEDCoupling_Swig/MEDCouplingCommon.i
index 0b9e4e4da..1d7434b7c 100644
--- a/src/MEDCoupling_Swig/MEDCouplingCommon.i
+++ b/src/MEDCoupling_Swig/MEDCouplingCommon.i
@@ -555,6 +555,8 @@ namespace ParaMEDMEM
   const char *MEDCouplingVersionStr();
   int MEDCouplingVersion();
   int MEDCouplingSizeOfVoidStar();
+  bool MEDCouplingByteOrder();
+  const char *MEDCouplingByteOrderStr();
 
   class RefCountObject
   {
-- 
2.39.2