Fixed segfault

7851bad8 · Peter Eastman · 823b9a75 · 7851bad8
Commit 7851bad8 authored Jul 29, 2016 by Peter Eastman
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platforms/cpu/src/CpuCustomGBForce.cpp platforms/cpu/src/CpuCustomGBForce.cpp +1 -1

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--- a/platforms/cpu/src/CpuCustomGBForce.cpp
+++ b/platforms/cpu/src/CpuCustomGBForce.cpp
@@ -231,7 +231,7 @@ void CpuCustomGBForce::calculateIxn(int numberOfAtoms, float* posq, RealOpenMM**
    }
    if (hasParamDerivs)
        for (int i = 0; i < threads.getNumThreads(); i++)
-            for (int j = 0; j < threadData[j]->energyParamDerivs.size(); j++)
+            for (int j = 0; j < threadData[i]->energyParamDerivs.size(); j++)
                energyParamDerivs[j] += threadData[i]->energyParamDerivs[j];
 }