bug #86 : use internal:: namespace instead of ei_ prefix
diff --git a/test/sparse_basic.cpp b/test/sparse_basic.cpp
index 8c93909..8dfa0ba 100644
--- a/test/sparse_basic.cpp
+++ b/test/sparse_basic.cpp
@@ -41,7 +41,7 @@
   SparseMatrixType m(rows, cols);
   DenseMatrix refMat = DenseMatrix::Zero(rows, cols);
   DenseVector vec1 = DenseVector::Random(rows);
-  Scalar s1 = ei_random<Scalar>();
+  Scalar s1 = internal::random<Scalar>();
 
   std::vector<Vector2i> zeroCoords;
   std::vector<Vector2i> nonzeroCoords;
@@ -54,7 +54,7 @@
   for (int i=0; i<(int)zeroCoords.size(); ++i)
   {
     VERIFY_IS_MUCH_SMALLER_THAN( m.coeff(zeroCoords[i].x(),zeroCoords[i].y()), eps );
-    if(ei_is_same_type<SparseMatrixType,SparseMatrix<Scalar,Flags> >::ret)
+    if(internal::is_same_type<SparseMatrixType,SparseMatrix<Scalar,Flags> >::ret)
       VERIFY_RAISES_ASSERT( m.coeffRef(zeroCoords[0].x(),zeroCoords[0].y()) = 5 );
   }
   VERIFY_IS_APPROX(m, refMat);
@@ -67,10 +67,10 @@
   // test InnerIterators and Block expressions
   for (int t=0; t<10; ++t)
   {
-    int j = ei_random<int>(0,cols-1);
-    int i = ei_random<int>(0,rows-1);
-    int w = ei_random<int>(1,cols-j-1);
-    int h = ei_random<int>(1,rows-i-1);
+    int j = internal::random<int>(0,cols-1);
+    int i = internal::random<int>(0,rows-1);
+    int w = internal::random<int>(1,cols-j-1);
+    int h = internal::random<int>(1,rows-i-1);
 
 //     VERIFY_IS_APPROX(m.block(i,j,h,w), refMat.block(i,j,h,w));
     for(int c=0; c<w; c++)
@@ -114,9 +114,9 @@
       {
         for (int k=0; k<rows/2; ++k)
         {
-          int i = ei_random<int>(0,rows-1);
+          int i = internal::random<int>(0,rows-1);
           if (m1.coeff(i,j)==Scalar(0))
-            m2.insert(i,j) = m1(i,j) = ei_random<Scalar>();
+            m2.insert(i,j) = m1(i,j) = internal::random<Scalar>();
         }
       }
       m2.finalize();
@@ -131,10 +131,10 @@
       m2.reserve(10);
       for (int k=0; k<rows*cols; ++k)
       {
-        int i = ei_random<int>(0,rows-1);
-        int j = ei_random<int>(0,cols-1);
+        int i = internal::random<int>(0,rows-1);
+        int j = internal::random<int>(0,cols-1);
         if (m1.coeff(i,j)==Scalar(0))
-          m2.insert(i,j) = m1(i,j) = ei_random<Scalar>();
+          m2.insert(i,j) = m1(i,j) = internal::random<Scalar>();
       }
       m2.finalize();
       VERIFY_IS_APPROX(m2,m1);
@@ -190,8 +190,8 @@
     DenseMatrix refMat2 = DenseMatrix::Zero(rows, rows);
     SparseMatrixType m2(rows, rows);
     initSparse<Scalar>(density, refMat2, m2);
-    int j0 = ei_random(0,rows-1);
-    int j1 = ei_random(0,rows-1);
+    int j0 = internal::random(0,rows-1);
+    int j1 = internal::random(0,rows-1);
     VERIFY_IS_APPROX(m2.innerVector(j0), refMat2.col(j0));
     VERIFY_IS_APPROX(m2.innerVector(j0)+m2.innerVector(j1), refMat2.col(j0)+refMat2.col(j1));
     //m2.innerVector(j0) = 2*m2.innerVector(j1);
@@ -204,9 +204,9 @@
     DenseMatrix refMat2 = DenseMatrix::Zero(rows, rows);
     SparseMatrixType m2(rows, rows);
     initSparse<Scalar>(density, refMat2, m2);
-    int j0 = ei_random(0,rows-2);
-    int j1 = ei_random(0,rows-2);
-    int n0 = ei_random<int>(1,rows-std::max(j0,j1));
+    int j0 = internal::random(0,rows-2);
+    int j1 = internal::random(0,rows-2);
+    int n0 = internal::random<int>(1,rows-std::max(j0,j1));
     VERIFY_IS_APPROX(m2.innerVectors(j0,n0), refMat2.block(0,j0,rows,n0));
     VERIFY_IS_APPROX(m2.innerVectors(j0,n0)+m2.innerVectors(j1,n0),
                      refMat2.block(0,j0,rows,n0)+refMat2.block(0,j1,rows,n0));
@@ -226,7 +226,7 @@
       m2.startVec(j);
       for (int i=0; i<m2.innerSize(); ++i)
       {
-        float x = ei_random<float>(0,1);
+        float x = internal::random<float>(0,1);
         if (x<0.1)
         {
           // do nothing