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| author | Hanna Mendes Levitin <hanna@anomaly-3.local> | 2010-12-01 03:37:07 -0600 |
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| committer | Hanna Mendes Levitin <hanna@anomaly-3.local> | 2010-12-01 03:37:07 -0600 |
| commit | 7138e998cc7b49cc27fe1f6144c8b6942c95dc75 (patch) | |
| tree | 2119767a9babf8fe05a869a4a9035501b5b20bb5 /docs/source/lang/api/max.rst | |
| parent | dd2b6e1adb8b9fbadded33dddbcd521461e10f34 (diff) | |
docs, now with style
Diffstat (limited to 'docs/source/lang/api/max.rst')
| -rw-r--r-- | docs/source/lang/api/max.rst | 65 |
1 files changed, 65 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..d38eebe --- /dev/null +++ b/docs/source/lang/api/max.rst @@ -0,0 +1,65 @@ +.. 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 version of ``max()`` is compatible with Arduino. + +See Also +-------- + +- :ref:`min() <lang-min>` +- :ref:`constrain() <lang-constrain>` + + +.. include:: cc-attribution.txt |
