Use != instead of > in loops, add sanity checks to market fill functions

2 files changed, 18 insertions, 18 deletions

diff --git a/packages/contracts/src/2.0.0/forwarder/MixinExchangeWrapper.sol b/packages/contracts/src/2.0.0/forwarder/MixinExchangeWrapper.sol
index e230767b7..e150791da 100644
--- a/packages/contracts/src/2.0.0/forwarder/MixinExchangeWrapper.sol
+++ b/packages/contracts/src/2.0.0/forwarder/MixinExchangeWrapper.sol
@@ -104,7 +104,7 @@ contract MixinExchangeWrapper is
         bytes memory wethAssetData = WETH_ASSET_DATA;
 
         uint256 ordersLength = orders.length;
-        for (uint256 i = 0; i < ordersLength; i++) {
+        for (uint256 i = 0; i != ordersLength; i++) {
 
             // We assume that asset being bought by taker is the same for each order.
             // We assume that asset being sold by taker is WETH for each order.
@@ -125,7 +125,7 @@ contract MixinExchangeWrapper is
             addFillResults(totalFillResults, singleFillResults);
 
             // Stop execution if the entire amount of takerAsset has been sold
-            if (totalFillResults.takerAssetFilledAmount == wethSellAmount) {
+            if (totalFillResults.takerAssetFilledAmount >= wethSellAmount) {
                 break;
             }
         }
@@ -151,7 +151,7 @@ contract MixinExchangeWrapper is
         bytes memory wethAssetData = WETH_ASSET_DATA;
 
         uint256 ordersLength = orders.length;
-        for (uint256 i = 0; i < ordersLength; i++) {
+        for (uint256 i = 0; i != ordersLength; i++) {
 
             // We assume that asset being bought by taker is the same for each order.
             // We assume that asset being sold by taker is WETH for each order.
@@ -180,7 +180,7 @@ contract MixinExchangeWrapper is
             addFillResults(totalFillResults, singleFillResults);
 
             // Stop execution if the entire amount of makerAsset has been bought
-            if (totalFillResults.makerAssetFilledAmount == makerAssetFillAmount) {
+            if (totalFillResults.makerAssetFilledAmount >= makerAssetFillAmount) {
                 break;
             }
         }
@@ -214,7 +214,7 @@ contract MixinExchangeWrapper is
         uint256 zrxPurchased = 0;
 
         uint256 ordersLength = orders.length;
-        for (uint256 i = 0; i < ordersLength; i++) {
+        for (uint256 i = 0; i != ordersLength; i++) {
 
             // All of these are ZRX/WETH, so we can drop the respective assetData from calldata.
             orders[i].makerAssetData = zrxAssetData;
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/MixinWrapperFunctions.sol b/packages/contracts/src/2.0.0/protocol/Exchange/MixinWrapperFunctions.sol
index a0882b108..86194f461 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/MixinWrapperFunctions.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/MixinWrapperFunctions.sol
@@ -120,7 +120,7 @@ contract MixinWrapperFunctions is
         returns (FillResults memory totalFillResults)
     {
         uint256 ordersLength = orders.length;
-        for (uint256 i = 0; i < ordersLength; i++) {
+        for (uint256 i = 0; i != ordersLength; i++) {
             FillResults memory singleFillResults = fillOrder(
                 orders[i],
                 takerAssetFillAmounts[i],
@@ -146,7 +146,7 @@ contract MixinWrapperFunctions is
         returns (FillResults memory totalFillResults)
     {
         uint256 ordersLength = orders.length;
-        for (uint256 i = 0; i < ordersLength; i++) {
+        for (uint256 i = 0; i != ordersLength; i++) {
             FillResults memory singleFillResults = fillOrKillOrder(
                 orders[i],
                 takerAssetFillAmounts[i],
@@ -173,7 +173,7 @@ contract MixinWrapperFunctions is
         returns (FillResults memory totalFillResults)
     {
         uint256 ordersLength = orders.length;
-        for (uint256 i = 0; i < ordersLength; i++) {
+        for (uint256 i = 0; i != ordersLength; i++) {
             FillResults memory singleFillResults = fillOrderNoThrow(
                 orders[i],
                 takerAssetFillAmounts[i],
@@ -200,7 +200,7 @@ contract MixinWrapperFunctions is
         bytes memory takerAssetData = orders[0].takerAssetData;
     
         uint256 ordersLength = orders.length;
-        for (uint256 i = 0; i < ordersLength; i++) {
+        for (uint256 i = 0; i != ordersLength; i++) {
 
             // We assume that asset being sold by taker is the same for each order.
             // Rather than passing this in as calldata, we use the takerAssetData from the first order in all later orders.
@@ -220,7 +220,7 @@ contract MixinWrapperFunctions is
             addFillResults(totalFillResults, singleFillResults);
 
             // Stop execution if the entire amount of takerAsset has been sold
-            if (totalFillResults.takerAssetFilledAmount == takerAssetFillAmount) {
+            if (totalFillResults.takerAssetFilledAmount >= takerAssetFillAmount) {
                 break;
             }
         }
@@ -244,7 +244,7 @@ contract MixinWrapperFunctions is
         bytes memory takerAssetData = orders[0].takerAssetData;
 
         uint256 ordersLength = orders.length;
-        for (uint256 i = 0; i < ordersLength; i++) {
+        for (uint256 i = 0; i != ordersLength; i++) {
 
             // We assume that asset being sold by taker is the same for each order.
             // Rather than passing this in as calldata, we use the takerAssetData from the first order in all later orders.
@@ -264,7 +264,7 @@ contract MixinWrapperFunctions is
             addFillResults(totalFillResults, singleFillResults);
 
             // Stop execution if the entire amount of takerAsset has been sold
-            if (totalFillResults.takerAssetFilledAmount == takerAssetFillAmount) {
+            if (totalFillResults.takerAssetFilledAmount >= takerAssetFillAmount) {
                 break;
             }
         }
@@ -287,7 +287,7 @@ contract MixinWrapperFunctions is
         bytes memory makerAssetData = orders[0].makerAssetData;
 
         uint256 ordersLength = orders.length;
-        for (uint256 i = 0; i < ordersLength; i++) {
+        for (uint256 i = 0; i != ordersLength; i++) {
 
             // We assume that asset being bought by taker is the same for each order.
             // Rather than passing this in as calldata, we copy the makerAssetData from the first order onto all later orders.
@@ -315,7 +315,7 @@ contract MixinWrapperFunctions is
             addFillResults(totalFillResults, singleFillResults);
 
             // Stop execution if the entire amount of makerAsset has been bought
-            if (totalFillResults.makerAssetFilledAmount == makerAssetFillAmount) {
+            if (totalFillResults.makerAssetFilledAmount >= makerAssetFillAmount) {
                 break;
             }
         }
@@ -339,7 +339,7 @@ contract MixinWrapperFunctions is
         bytes memory makerAssetData = orders[0].makerAssetData;
 
         uint256 ordersLength = orders.length;
-        for (uint256 i = 0; i < ordersLength; i++) {
+        for (uint256 i = 0; i != ordersLength; i++) {
 
             // We assume that asset being bought by taker is the same for each order.
             // Rather than passing this in as calldata, we copy the makerAssetData from the first order onto all later orders.
@@ -367,7 +367,7 @@ contract MixinWrapperFunctions is
             addFillResults(totalFillResults, singleFillResults);
 
             // Stop execution if the entire amount of makerAsset has been bought
-            if (totalFillResults.makerAssetFilledAmount == makerAssetFillAmount) {
+            if (totalFillResults.makerAssetFilledAmount >= makerAssetFillAmount) {
                 break;
             }
         }
@@ -380,7 +380,7 @@ contract MixinWrapperFunctions is
         public
     {
         uint256 ordersLength = orders.length;
-        for (uint256 i = 0; i < ordersLength; i++) {
+        for (uint256 i = 0; i != ordersLength; i++) {
             cancelOrder(orders[i]);
         }
     }
@@ -395,7 +395,7 @@ contract MixinWrapperFunctions is
     {
         uint256 ordersLength = orders.length;
         LibOrder.OrderInfo[] memory ordersInfo = new LibOrder.OrderInfo[](ordersLength);
-        for (uint256 i = 0; i < ordersLength; i++) {
+        for (uint256 i = 0; i != ordersLength; i++) {
             ordersInfo[i] = getOrderInfo(orders[i]);
         }
         return ordersInfo;