waterDataDiscreteRateMining preliminaryDataProcessing.h 康雷 commit at 2020-11-12

waterDataDiscreteRateMining/monitoringDataProcessing/preliminaryDataProcessing.h

@@ -226,3 +226,19 @@ __constant_test_bit(unsigned long nr, const volatile void *addr)
 	return ((1UL << (nr & 31)) & (((const volatile unsigned int *) addr)[nr >> 5])) != 0;
 }
 
+static inline int __test_bit(unsigned long nr, const volatile void *addr)
+{
+	int 	* a = (int *) addr;
+	int	mask;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+	return ((mask & *a) != 0);
+}
+
+#define test_bit(nr,addr) \
+(__builtin_constant_p(nr) ? \
+ __constant_test_bit((nr),(addr)) : \
+ __test_bit((nr),(addr)))
+
+#include <asm-generic/bitops/find.h>