Benchmark filesHEADmaster

1 files changed, 30 insertions, 0 deletions

diff --git a/test/benchmarks/bit_count1.c b/test/benchmarks/bit_count1.c
new file mode 100755
index 0000000..c900524
--- /dev/null
+++ b/test/benchmarks/bit_count1.c
@@ -0,0 +1,30 @@
+/*
+ *  Bit counter by Ratko Tomic
+ */
+
+long atol(char *);
+int printf(char *s, ...);
+
+int bit_count(long x)
+{
+        int n = 0;
+        if (x) do
+              n++;
+        while (0 != (x = x&(x-1))) ;
+        return(n);
+}
+
+int main(int argc, char **argv)
+{
+      long n = atol(*++argv);
+      long i;
+      int sum = 0;
+
+      if (n == 0)
+	      return 1;
+
+      for (i = 0; i < n; ++i)
+	      sum += bit_count(i);
+      printf("%d\n", sum);
+      return 0;
+}