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.. highlight:: cpp
.. _lang-min:
min()
=====
(Macro) Calculates the minimum of two numbers.
Syntax
------
::
min(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 smaller of the two numbers.
Example
-------
::
sensVal = min(sensVal, 100); // assigns sensVal to the smaller of sensVal or 100
// ensuring that it never gets above 100.
.. note:: Perhaps counter-intuitively, max() is often used to
constrain the lower end of a variable's range, while min() is used
to constrain the upper end of the range.
Warning
-------
Because of the way ``min()`` is implemented, avoid using other
functions inside the parentheses. It may lead to incorrect results::
min(a++, 100); // avoid this - yields incorrect results
a++; // use this instead -
min(a, 100); // keep other operations outside min()
Arduino Compatibility
---------------------
The Maple version of ``min()`` is compatible with Arduino.
See Also
--------
- :ref:`max() <lang-max>`
- :ref:`constrain() <lang-constrain>`
.. include:: cc-attribution.txt
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