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author | Marti Bolivar <mbolivar@mit.edu> | 2010-11-28 11:23:33 -0500 |
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committer | Marti Bolivar <mbolivar@mit.edu> | 2010-11-28 11:23:33 -0500 |
commit | 5e587be27a7c3bd854b686952a5c9637a2432ff0 (patch) | |
tree | 09d4ceeb46f19287ee874a24516c68be90c9ad8e /docs/source/lang/max.rst | |
parent | db4ff6ba53e9b702c77411ae19cd53d914a675de (diff) | |
download | librambutan-5e587be27a7c3bd854b686952a5c9637a2432ff0.tar.gz librambutan-5e587be27a7c3bd854b686952a5c9637a2432ff0.zip |
reorganized all the arduino/ docs into a lang/ subdirectory since
they're properly CC attributed now.
Diffstat (limited to 'docs/source/lang/max.rst')
-rw-r--r-- | docs/source/lang/max.rst | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/docs/source/lang/max.rst b/docs/source/lang/max.rst new file mode 100644 index 0000000..7dbf6a7 --- /dev/null +++ b/docs/source/lang/max.rst @@ -0,0 +1,63 @@ +.. highlight:: cpp + +.. _lang-max: + +max(x, y) +========= + +Description +----------- + +(Macro) Calculates the maximum of two numbers. + + + +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 version of ``max()`` is compatible with Arduino. + +See Also +-------- + +- :ref:`min() <lang-min>` +- :ref:`constrain() <lang-constrain>` + + +.. include:: cc-attribution.txt |