intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 78 insertions, 0 deletions

diff --git a/library/cpp/lwtrace/check.h b/library/cpp/lwtrace/check.h
new file mode 100644
index 0000000000..71503cbc7b
--- /dev/null
+++ b/library/cpp/lwtrace/check.h
@@ -0,0 +1,78 @@
+#pragma once
+
+namespace NLWTrace {
+    struct TCheck {
+        int Value;
+        static int ObjCount;
+
+        TCheck()
+            : Value(0)
+        {
+            ObjCount++;
+        }
+
+        explicit TCheck(int value)
+            : Value(value)
+        {
+            ObjCount++;
+        }
+
+        TCheck(const TCheck& o)
+            : Value(o.Value)
+        {
+            ObjCount++;
+        }
+
+        ~TCheck() {
+            ObjCount--;
+        }
+
+        bool operator<(const TCheck& rhs) const {
+            return Value < rhs.Value;
+        }
+        bool operator>(const TCheck& rhs) const {
+            return Value > rhs.Value;
+        }
+        bool operator<=(const TCheck& rhs) const {
+            return Value <= rhs.Value;
+        }
+        bool operator>=(const TCheck& rhs) const {
+            return Value >= rhs.Value;
+        }
+        bool operator==(const TCheck& rhs) const {
+            return Value == rhs.Value;
+        }
+        bool operator!=(const TCheck& rhs) const {
+            return Value != rhs.Value;
+        }
+        TCheck operator+(const TCheck& rhs) const {
+            return TCheck(Value + rhs.Value);
+        }
+        TCheck operator-(const TCheck& rhs) const {
+            return TCheck(Value - rhs.Value);
+        }
+        TCheck operator*(const TCheck& rhs) const {
+            return TCheck(Value * rhs.Value);
+        }
+        TCheck operator/(const TCheck& rhs) const {
+            return TCheck(Value / rhs.Value);
+        }
+        TCheck operator%(const TCheck& rhs) const {
+            return TCheck(Value % rhs.Value);
+        }
+
+        void Add(const TCheck rhs) {
+            Value += rhs.Value;
+        }
+        void Sub(const TCheck rhs) {
+            Value -= rhs.Value;
+        }
+        void Inc() {
+            ++Value;
+        }
+        void Dec() {
+            --Value;
+        }
+    };
+
+}