Added new function Exiv2::versionNumberHexString()

src/version.cpp

@@ -39,12 +39,23 @@ EXIV2_RCSID("@(#) $Id$")
 
 #include "version.hpp"
 
+// + standard includes
+#include <iomanip>
+#include <sstream>
+
 namespace Exiv2 {
     int versionNumber()
     {
         return EXIV2_MAKE_VERSION(EXIV2_MAJOR_VERSION, EXIV2_MINOR_VERSION, EXIV2_PATCH_VERSION);
     }
 
+    std::string versionNumberHexString()
+    {
+        std::ostringstream os;
+        os << std::hex << std::setw(6) << std::setfill('0') << Exiv2::versionNumber();
+        return os.str();
+    }
+
     const char* version()
     {
         return EXV_PACKAGE_VERSION;

src/version.hpp

@@ -32,6 +32,11 @@
 #ifndef VERSION_HPP_
 #define VERSION_HPP_
 
+// *****************************************************************************
+// included header files
+// + standard includes
+#include <string>
+
 /*!
   @brief %Exiv2 MAJOR version number of the library used at compile-time.
  */
@@ -116,6 +121,10 @@ namespace Exiv2 {
       @brief Return the version of %Exiv2 available at runtime as an integer.
     */
     EXIV2API int versionNumber();
+    /*!
+      @brief Return the version of %Exiv2 as hex string of fixed length 6.
+    */
+    EXIV2API std::string versionNumberHexString();
     /*!
       @brief Return the version of %Exiv2 available at runtime as a string.
     */