Create AddressUtils.sol

KOSASIH · Jun 16, 2024 · 4e3dd27 · 4e3dd27
1 parent 5e8b7fa
commit 4e3dd27
Showing 1 changed file with 19 additions and 0 deletions.
diff --git a/blockchain_integration/pi_network/contracts/PI-bank/libraries/AddressUtils.sol b/blockchain_integration/pi_network/contracts/PI-bank/libraries/AddressUtils.sol
@@ -0,0 +1,19 @@
+pragma solidity ^0.8.0;
+
+library AddressUtils {
+    function isValidAddress(address _addr) internal pure returns (bool) {
+        return _addr!= address(0);
+    }
+
+    function isContract(address _addr) internal view returns (bool) {
+        uint256 size;
+        assembly {
+            size := extcodesize(_addr)
+        }
+        return size > 0;
+    }
+
+    function encodeAddress(address _addr) internal pure returns (bytes memory) {
+        return abi.encodePacked(_addr);
+    }
+}