ENH: step 3

1 files changed, 33 insertions, 0 deletions

diff --git a/Tests/Tutorial/Step3/tutorial.cxx b/Tests/Tutorial/Step3/tutorial.cxx
new file mode 100644
index 0000000..e1f9cd8
--- /dev/null
+++ b/Tests/Tutorial/Step3/tutorial.cxx
@@ -0,0 +1,33 @@
+// A simple program that computes the square root of a number
+#include <stdio.h>
+#include <math.h>
+#include "TutorialConfig.h"
+
+#ifdef USE_MYMATH
+#include "MathFunctions.h"
+#endif
+
+int main (int argc, char *argv[])
+{
+  if (argc < 2)
+    {
+    fprintf(stdout,"%s Version %d.%d\n",
+            argv[0],
+            Tutorial_VERSION_MAJOR,
+            Tutorial_VERSION_MINOR);
+    fprintf(stdout,"Usage: %s number\n",argv[0]);
+    return 1;
+    }
+
+  double inputValue = atof(argv[1]);
+
+#ifdef USE_MYMATH
+  double outputValue = mysqrt(inputValue);
+#else
+  double outputValue = sqrt(inputValue);
+#endif
+
+  fprintf(stdout,"The square root of %g is %g\n",
+          inputValue, outputValue);
+  return 0;
+}