+// Here we define function this is the only way to be able to pass
+// stuff with indirection like:
+// gdcmDebug( "my message:" << i << '\t' );
+// You cannot use function unless you use vnsprintf ...
+
+// __FUNCTION is not always defined by preprocessor
+// In c++ we should use __PRETTY_FUNCTION__ instead...
+#ifdef GDCM_COMPILER_HAS_FUNCTION
+// Handle particular case for GNU C++ which also defines __PRETTY_FUNCTION__
+// which is a lot nice in C++
+#ifdef __BORLANDC__
+# define __FUNCTION__ __FUNC__
+#endif
+#ifdef __GNUC__
+# define GDCM_FUNCTION __PRETTY_FUNCTION__
+#else
+# define GDCM_FUNCTION __FUNCTION__
+#endif //__GNUC__
+#else
+# define GDCM_FUNCTION "<unknow>"
+#endif //GDCM_COMPILER_HAS_FUNCTION
+
+/**
+ * \brief Debug
+ * @param msg message part
+ */
+#define gdcmDebugMacro(msg) \
+{ \
+ if( gdcm::Debug::GetDebugFlag() ) \
+ { \
+ std::ostringstream osmacro; \
+ osmacro << "Debug: In " __FILE__ ", line " << __LINE__ \
+ << ", function " << GDCM_FUNCTION << '\n' \
+ << msg << "\n\n"; \
+ std::cerr << osmacro.str() << std::endl; \
+ } \
+}
+
+/**
+ * \brief Verbose
+ * @param msg message part
+ */
+#define gdcmVerboseMacro(msg) \
+{ \
+ if( gdcm::Debug::GetDebugFlag() ) \
+ { \
+ std::ostringstream osmacro; \
+ osmacro << "Verbose: In " __FILE__ ", line " << __LINE__ \
+ << ", function " << GDCM_FUNCTION << "\n" \
+ << msg << "\n\n"; \
+ std::cerr << osmacro.str() << std::endl; \
+ } \
+}
+
+/**
+ * \brief Error
+ * @param msg second message part
+ */
+#define gdcmErrorMacro(msg) \
+{ \
+ if( gdcm::Debug::GetDebugFlag() ) \
+ { \
+ std::ostringstream osmacro; \
+ osmacro << "Error: In " __FILE__ ", line " << __LINE__ \
+ << ", function " << GDCM_FUNCTION << '\n' \
+ << msg << "\n\n"; \
+ std::cerr << osmacro.str() << std::endl; \
+ exit(1); \
+ } \
+}
+
+/**
+ * \brief Assert
+ * @param arg argument to test
+ * An easy solution to pass also a message is to do:
+ * gdcmAssertMacro( "my message" && 2 < 3 )
+ */
+#define gdcmAssertMacro(arg) \
+{ \
+ if( !(arg) ) \
+ { \
+ std::ostringstream osmacro; \
+ osmacro << "Assert: In " __FILE__ ", line " << __LINE__ \
+ << ", function " << GDCM_FUNCTION \
+ << "\n\n"; \
+ std::cerr << osmacro.str() << std::endl; \
+ assert ( arg ); \
+ } \
+}
+