Add union and union's unittest.

src/Function1D.cpp

@@ -550,3 +550,25 @@ Matrix Aurora::linspace(double aStart, double aEnd, int aNum)
 
     return Matrix::New(resultData,aNum);
 }
+
+Matrix Aurora::auroraUnion(const Matrix& aMatrix1, const Matrix& aMatrix2)
+{
+    if(aMatrix1.isNull() || aMatrix2.isNull() || aMatrix1.getValueType() == Complex || aMatrix2.getValueType() == Complex)
+    {
+        return Matrix();
+    }
+
+    size_t size1= aMatrix1.getDataSize();
+    size_t size2= aMatrix2.getDataSize();
+    double* resultData = Aurora::malloc(size1 + size2);
+    cblas_dcopy(size1, aMatrix1.getData(), 1, resultData, 1);
+    cblas_dcopy(size2, aMatrix2.getData(), 1, resultData + size1, 1);
+    std::vector<double> vector(resultData,  resultData + size1 + size2);
+    Aurora::free(resultData);
+    std::sort(vector.begin(), vector.end());
+    auto last = std::unique(vector.begin(), vector.end());
+    vector.erase(last, vector.end());
+
+    return Matrix::copyFromRawData(vector.data(),vector.size());
+}
+

src/Function1D.h

@@ -74,6 +74,8 @@ namespace Aurora {
 
     Matrix linspace(double aStart, double aEnd, int aNum);
 
+    Matrix auroraUnion(const Matrix& aMatrix1, const Matrix& aMatrix2);
+
     /**
      * 多项式计算
      * @brief 例如p[1 0 1],x[3 2 5],代表对多项式 y = x^2 + 1 求(x=3, x=2, x=5)时所有的y