Added function to compute parity.

include/MUtils/Global.h

@@ -84,6 +84,9 @@ namespace MUtils
 	MUTILS_API quint32 next_rand32(void);
 	MUTILS_API quint64 next_rand64(void);
 
+	//Parity
+	MUTILS_API bool parity(quint32 value);
+
 	//Remove File/Dir
 	MUTILS_API bool remove_file(const QString &fileName);
 	MUTILS_API bool remove_directory(const QString &folderPath, const bool &recursive);

src/Global.cpp

@@ -109,6 +109,23 @@ QString MUtils::rand_str(const bool &bLong)
 	return QString("%1%2").arg(rand_str(false), rand_str(false));
 }
 
+///////////////////////////////////////////////////////////////////////////////
+// COMPUTE PARITY
+///////////////////////////////////////////////////////////////////////////////
+
+/*
+ * Compute parity in parallel
+ * http://www.graphics.stanford.edu/~seander/bithacks.html#ParityParallel
+ */
+bool MUtils::parity(quint32 value)
+{
+	value ^= value >> 16;
+	value ^= value >> 8;
+	value ^= value >> 4;
+	value &= 0xf;
+	return ((0x6996 >> value) & 1) != 0;
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 // TEMP FOLDER
 ///////////////////////////////////////////////////////////////////////////////