Initial import of libucore

2012-10-29 23:07:32 +01:00
commit ed3866e49a
79 changed files with 6181 additions and 0 deletions
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+#ifndef UCORE_MATH_H_
+#define UCORE_MATH_H_
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+uint32_t 
+uc_gcd_32(uint32_t a, uint32_t b);
+
+uint64_t 
+uc_gcd_64(uint64_t a, uint64_t b);
+
+uint32_t 
+uc_phi_32(uint32_t N);
+
+uint64_t 
+uc_phi_64(uint64_t N);
+
+static inline uint32_t
+uc_nextpow2(uint32_t x)
+{
+	x--;
+	x |= x >> 1;
+	x |= x >> 2;
+	x |= x >> 4;
+	x |= x >> 8;
+	x |= x >> 16;
+	x++;
+	
+	return x;
+}
+
+#ifdef __cplusplus
+}
+#endif
+#endif