From 9e5eb5382be97f7a0d86a93e1cf8aa247477bb29 Mon Sep 17 00:00:00 2001
From: jpr <jpr>
Date: Wed, 5 Jan 2005 15:19:42 +0000
Subject: [PATCH]    ADD : Add the method IsCurrentProcessorBigEndian 	     
 (we'll need it for 'Explicit VR Big Endian' Transfert Syntax)

---
 src/gdcmUtil.cxx | 23 +++++++++++++++++++++--
 src/gdcmUtil.h   |  5 +++--
 2 files changed, 24 insertions(+), 4 deletions(-)

diff --git a/src/gdcmUtil.cxx b/src/gdcmUtil.cxx
index 05ab21a5..948fd2cc 100644
--- a/src/gdcmUtil.cxx
+++ b/src/gdcmUtil.cxx
@@ -3,8 +3,8 @@
   Program:   gdcm
   Module:    $RCSfile: gdcmUtil.cxx,v $
   Language:  C++
-  Date:      $Date: 2004/12/13 15:12:33 $
-  Version:   $Revision: 1.70 $
+  Date:      $Date: 2005/01/05 15:19:42 $
+  Version:   $Revision: 1.71 $
                                                                                 
   Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
   l'Image). All rights reserved. See Doc/License.txt or
@@ -290,6 +290,25 @@ bool Util::DicomStringEqual(const std::string& s1, const char *s2)
   return s1_even == s2_even;
 }
 
+
+
+/**
+ * \ingroup Util
+ * \brief   tells us if the processor we are working with is BigEndian or not
+ */
+bool Util::IsCurrentProcessorBigEndian()
+{
+   uint16_t intVal = 1;
+   uint8_t bigEndianRepr[4] = { 0x00, 0x00, 0x00, 0x01 };
+   int res = memcmp(reinterpret_cast<const void*>(&intVal),
+                    reinterpret_cast<const void*>(bigEndianRepr), 4);
+   if (res == 0)
+      return true;
+   else
+      return false;
+}
+
+
 /**
  * \ingroup Util
  * \brief   Return the IP adress of the machine writting the DICOM image
diff --git a/src/gdcmUtil.h b/src/gdcmUtil.h
index 6893f4d2..85013ce4 100644
--- a/src/gdcmUtil.h
+++ b/src/gdcmUtil.h
@@ -3,8 +3,8 @@
   Program:   gdcm
   Module:    $RCSfile: gdcmUtil.h,v $
   Language:  C++
-  Date:      $Date: 2004/11/16 05:03:35 $
-  Version:   $Revision: 1.45 $
+  Date:      $Date: 2005/01/05 15:19:42 $
+  Version:   $Revision: 1.46 $
                                                                                 
   Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
   l'Image). All rights reserved. See Doc/License.txt or
@@ -55,6 +55,7 @@ public:
    static std::string DicomString(const char* s);
    static bool        DicomStringEqual(const std::string& s1, const char *s2);
    static std::string CreateUniqueUID(const std::string& root = "");
+   static bool        IsCurrentProcessorBigEndian();
 
 private:
    static std::string GetIPAddress(); //Do not expose this method
-- 
2.45.1