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-rw-r--r--Help/guide/tutorial/Step5/MathFunctions/MakeTable.cxx25
-rw-r--r--Help/guide/tutorial/Step6/MathFunctions/MakeTable.cxx25
-rw-r--r--Help/guide/tutorial/index.rst8
3 files changed, 6 insertions, 52 deletions
diff --git a/Help/guide/tutorial/Step5/MathFunctions/MakeTable.cxx b/Help/guide/tutorial/Step5/MathFunctions/MakeTable.cxx
deleted file mode 100644
index ee58556..0000000
--- a/Help/guide/tutorial/Step5/MathFunctions/MakeTable.cxx
+++ /dev/null
@@ -1,25 +0,0 @@
-// A simple program that builds a sqrt table
-#include <cmath>
-#include <fstream>
-#include <iostream>
-
-int main(int argc, char* argv[])
-{
- // make sure we have enough arguments
- if (argc < 2) {
- return 1;
- }
-
- std::ofstream fout(argv[1], std::ios_base::out);
- const bool fileOpen = fout.is_open();
- if (fileOpen) {
- fout << "double sqrtTable[] = {" << std::endl;
- for (int i = 0; i < 10; ++i) {
- fout << sqrt(static_cast<double>(i)) << "," << std::endl;
- }
- // close the table with a zero
- fout << "0};" << std::endl;
- fout.close();
- }
- return fileOpen ? 0 : 1; // return 0 if wrote the file
-}
diff --git a/Help/guide/tutorial/Step6/MathFunctions/MakeTable.cxx b/Help/guide/tutorial/Step6/MathFunctions/MakeTable.cxx
deleted file mode 100644
index ee58556..0000000
--- a/Help/guide/tutorial/Step6/MathFunctions/MakeTable.cxx
+++ /dev/null
@@ -1,25 +0,0 @@
-// A simple program that builds a sqrt table
-#include <cmath>
-#include <fstream>
-#include <iostream>
-
-int main(int argc, char* argv[])
-{
- // make sure we have enough arguments
- if (argc < 2) {
- return 1;
- }
-
- std::ofstream fout(argv[1], std::ios_base::out);
- const bool fileOpen = fout.is_open();
- if (fileOpen) {
- fout << "double sqrtTable[] = {" << std::endl;
- for (int i = 0; i < 10; ++i) {
- fout << sqrt(static_cast<double>(i)) << "," << std::endl;
- }
- // close the table with a zero
- fout << "0};" << std::endl;
- fout.close();
- }
- return fileOpen ? 0 : 1; // return 0 if wrote the file
-}
diff --git a/Help/guide/tutorial/index.rst b/Help/guide/tutorial/index.rst
index 4fbcd4c..6e26de9 100644
--- a/Help/guide/tutorial/index.rst
+++ b/Help/guide/tutorial/index.rst
@@ -380,8 +380,12 @@ tutorial assume that they are not common.
If the platform has ``log`` and ``exp`` then we will use them to compute the
square root in the ``mysqrt`` function. We first test for the availability of
these functions using the :module:`CheckSymbolExists` module in the top-level
-``CMakeLists.txt``. We're going to use the new defines in
-``TutorialConfig.h.in``, so be sure to set them before that file is configured.
+``CMakeLists.txt``. On some platforms, we will need to link to the m library.
+If ``log`` and ``exp`` are not initially found, require the m library and try
+again.
+
+We're going to use the new defines in ``TutorialConfig.h.in``, so be sure to
+set them before that file is configured.
.. literalinclude:: Step6/MathFunctions/CMakeLists.txt
:language: cmake