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author | bnewbold <bnewbold@robocracy.org> | 2014-08-27 17:36:11 -0400 |
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committer | bnewbold <bnewbold@robocracy.org> | 2014-08-27 17:42:22 -0400 |
commit | 34b766c9d5f778762069938c71e052fa40455d1c (patch) | |
tree | 3a2b77e636b222fecff6366218cf7845029afecf /docs/source/lang/api/max.rst | |
parent | 746d6fecf86572c9fe95dbbffdf541a8d3875dd0 (diff) | |
parent | add7e54ccaf61859874527feda2b51ea172ce697 (diff) | |
download | librambutan-34b766c9d5f778762069938c71e052fa40455d1c.tar.gz librambutan-34b766c9d5f778762069938c71e052fa40455d1c.zip |
merge libmaple docs ("leaflabs-docs") into ./docs
In the past, libample documentation was forked out of this repository
because the documentation had increased in scope. For the librambutan,
and the rambutan project in general, we will try to keep documentation
closer to the source code, so the librambutan-specific documentation
should live here. Other sections of leaflabs-docs will be culled in a
following commit.
This merge attempts to maintain history by using a subtree strategy.
Followed directions at:
http://nuclearsquid.com/writings/subtree-merging-and-you/
Full history for files should be accessible using the "--follow" flag to
git log, eg:
git log --follow docs/source/adc.rst
It should be possible to pull patches from leaflabs-docs with:
git pull -s subtree leaflabs-docs master
... at least until the docs in this repository diverge significantly.
Diffstat (limited to 'docs/source/lang/api/max.rst')
-rw-r--r-- | docs/source/lang/api/max.rst | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/docs/source/lang/api/max.rst b/docs/source/lang/api/max.rst new file mode 100644 index 0000000..d356f08 --- /dev/null +++ b/docs/source/lang/api/max.rst @@ -0,0 +1,64 @@ +.. highlight:: cpp + +.. _lang-max: + +max() +===== + +(Macro) Calculates the maximum of two numbers. + +Syntax +------ + +:: + + max(x, y) + +Parameters +---------- + +**x**: the first number; may be any number or numeric expression. + +**y**: the second number; may be any number or numeric expression. + + +Returns +------- + +The larger of the two parameter values. + +Example +------- + +:: + + sensVal = max(senVal, 20); // assigns sensVal to the larger of sensVal or 20 + // (effectively ensuring that it is at least 20) + +.. note:: Perhaps counter-intuitively, max() is often used to + constrain the lower end of a variable's range, while :ref:`min() + <lang-min>` is used to constrain the upper end of the range. + +Warning +------- + +Because of the way ``max()`` is implemented, avoid using other +functions inside the parentheses. It may lead to incorrect results:: + + max(a--, 0); // avoid this - yields incorrect results + + a--; // use this instead - + max(a, 0); // keep other operations outside max() + +Arduino Compatibility +--------------------- + +The Maple implementation of ``max()`` is compatible with Arduino. + +See Also +-------- + +- :ref:`min() <lang-min>` +- :ref:`constrain() <lang-constrain>` + +.. include:: /arduino-cc-attribution.txt |