Rename GPU into cuda, and merge SPGPU code.

cuda/spgpu/debug.h

@@ -0,0 +1,58 @@
+#pragma once
+
+/*
+ * spGPU - Sparse matrices on GPU library.
+ * 
+ * Copyright (C) 2010 - 2012 
+ *     Davide Barbieri - University of Rome Tor Vergata
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 3 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+ 
+#include "stdio.h"
+#include "stdlib.h"
+
+#ifndef _WIN32
+#include <execinfo.h>
+
+inline
+void printTrace (void)
+{
+	void *array[32];
+	size_t size;
+	char **strings;
+	size_t i;
+     
+	size = backtrace (array, 32);
+	strings = backtrace_symbols (array, size);
+     
+	printf ("---- Obtained %zd stack frames.\n", size);
+     
+	for (i = 0; i < size; i++)
+		printf ("%s\n", strings[i]);
+		    
+	free (strings);
+}
+#endif
+
+inline void __assert(int e, const char* w)
+{
+	if (!e)
+	{
+		printf("%s\n",w);
+		
+#ifndef _WIN32
+		printTrace();
+#endif
+		
+		exit(0);
+	}
+}
+