mirror/CMake
1
0
Fork 0
mirror of https://github.com/Kitware/CMake.git synced 2026-05-01 11:50:11 -05:00
Code Issues Packages Projects Releases Wiki Activity

Tutorial: Clarify Step 5

Browse Source
This commit is contained in:
Betsy McPhail
2020-01-15 16:54:33 -05:00
parent 9f1ce93d92
commit fc2d1b1347
1 changed files with 10 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Help/guide/tutorial/index.rst
+10 -4
View File
@@ -397,16 +397,22 @@ from ``mysqrt.cxx``:
#cmakedefine HAVE_LOG #cmakedefine HAVE_LOG
#cmakedefine HAVE_EXP #cmakedefine HAVE_EXP
Modify ``mysqrt.cxx`` to include cmath. Next, in that same file in the If ``log`` and ``exp`` are available on the system, then we will use them to
``mysqrt`` function we can provide an alternate implementation based on compute the square root in the ``mysqrt`` function. Add the following code to
``log`` and ``exp`` if they are available on the system using the following the ``mysqrt`` function in ``MathFunctions/mysqrt.cxx`` (don't forget the
code (don't forget the ``#endif`` before returning the result!): ``#endif`` before returning the result!):
.. literalinclude:: Step6/MathFunctions/mysqrt.cxx .. literalinclude:: Step6/MathFunctions/mysqrt.cxx
:language: c++ :language: c++
:start-after: // if we have both log and exp then use them :start-after: // if we have both log and exp then use them
:end-before: // do ten iterations :end-before: // do ten iterations
We will also need to modify ``mysqrt.cxx`` to include ``cmath``.
.. literalinclude:: Step6/MathFunctions/mysqrt.cxx
:language: c++
:end-before: #include <iostream>
Run the :manual:`cmake <cmake(1)>` executable or the Run the :manual:`cmake <cmake(1)>` executable or the
:manual:`cmake-gui <cmake-gui(1)>` to configure the project and then build it :manual:`cmake-gui <cmake-gui(1)>` to configure the project and then build it
with your chosen build tool and run the Tutorial executable. with your chosen build tool and run the Tutorial executable.