Tests: Update CMake tutorial

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1 files changed, 6 insertions, 12 deletions

diff --git a/Tests/Tutorial/Step7/MathFunctions/mysqrt.cxx b/Tests/Tutorial/Step7/MathFunctions/mysqrt.cxx
index 458ed63..5272f56 100644
--- a/Tests/Tutorial/Step7/MathFunctions/mysqrt.cxx
+++ b/Tests/Tutorial/Step7/MathFunctions/mysqrt.cxx
@@ -1,11 +1,11 @@
 #include "MathFunctions.h"
 #include "TutorialConfig.h"
-#include <stdio.h>
+#include <iostream>
 
 // include the generated table
 #include "Table.h"
 
-#include <math.h>
+#include <cmath>
 
 // a hack square root calculation using simple operations
 double mysqrt(double x)
@@ -14,26 +14,20 @@ double mysqrt(double x)
     return 0;
   }
 
-  double result;
-
-  // if we have both log and exp then use them
-  double delta;
-
   // use the table to help find an initial value
-  result = x;
+  double result = x;
   if (x >= 1 && x < 10) {
     result = sqrtTable[static_cast<int>(x)];
   }
 
   // do ten iterations
-  int i;
-  for (i = 0; i < 10; ++i) {
+  for (int i = 0; i < 10; ++i) {
     if (result <= 0) {
       result = 0.1;
     }
-    delta = x - (result * result);
+    double delta = x - (result * result);
     result = result + 0.5 * delta / result;
-    fprintf(stdout, "Computing sqrt of %g to be %g\n", x, result);
+    std::cout << "Computing sqrt of " << x << " to be " << result << std::endl;
   }
 
   return result;