New functions + Integer Lists Intersection

ext/simdcomp/include/simdcomputil.h

@@ -0,0 +1,29 @@
+/**
+ * This code is released under a BSD License.
+ */
+
+#ifndef SIMDCOMPUTIL_H_
+#define SIMDCOMPUTIL_H_
+
+#include <emmintrin.h>// SSE2 is required
+#include <stdint.h> // use a C99-compliant compiler, please
+
+
+
+
+// returns the integer logarithm of v (bit width)
+uint32_t bits(const uint32_t v);
+
+// max integer logarithm over a range of SIMDBlockSize integers (128 integer)
+uint32_t maxbits(const uint32_t * begin);
+
+enum{ SIMDBlockSize = 128};
+
+// like maxbit over 128 integers (SIMDBlockSize) with provided initial value
+// and using differential coding
+uint32_t simdmaxbitsd1(uint32_t initvalue, const uint32_t * in);
+
+
+
+
+#endif /* SIMDCOMPUTIL_H_ */