minor changes

2 files changed, 9 insertions, 1 deletions

diff --git a/test/other/josephus2.cpp b/test/other/josephus2.cpp
index c6b1cd1..f2c0440 100644
--- a/test/other/josephus2.cpp
+++ b/test/other/josephus2.cpp
@@ -15,7 +15,7 @@ void stress_test() {
 	ll tests = 0;
 	for (ll i = 1; i < 2'000; i++) {
 		auto got = rotateLeft(i);
-		auto expected = naive<1>(i, 2);
+		auto expected = naive<0>(i, 2);
 		if (got != expected) cerr << "error: " << i << FAIL;
 		tests++;
 	}
diff --git a/test/util.h b/test/util.h
index 0c14ff8..e0d9b57 100644
--- a/test/util.h
+++ b/test/util.h
@@ -10,6 +10,14 @@ namespace INT {constexpr int INF = 0x3FFF'FFFF;}
 namespace LL {constexpr ll INF = 0x3FFF'FFFF'FFFF'FFFFll;}
 namespace LD {constexpr ld INF = numeric_limits<ld>::infinity();}
 
+template<typename T>
+T _lg_check(T n) {
+	assert(n > 0);
+	return __lg(n);
+}
+
+#define __lg _lg_check
+
 namespace details {
 	template<typename T = ll>
 	bool isPrime(T x) {