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Diffstat (limited to 'docs/source/lang/constrain.rst')
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diff --git a/docs/source/lang/constrain.rst b/docs/source/lang/constrain.rst deleted file mode 100644 index d19b61c..0000000 --- a/docs/source/lang/constrain.rst +++ /dev/null @@ -1,69 +0,0 @@ -.. highlight:: cpp - -.. _lang-constrain: - -constrain() -=========== - -(Macro) Constrains a number to be within a range. - -Syntax ------- - -:: - - constrain(x, a, b) - - -Parameters ----------- - -**x**: the number to constrain - -**a**: the lower end of the range - -**b**: the upper end of the range - -Returns -------- - -**x**: if **x** is between **a** and **b** - -**a**: if **x** is less than **a** - -**b**: if **x** is greater than **b** - -Example -------- - -:: - - // limits range of sensor values to between 10 and 150: - sensVal = constrain(sensVal, 10, 150); - - -Warning -------- - -Because of the way ``constrain()`` is implemented, avoid using other -functions or causing side effects inside the parentheses, as it may -lead to incorrect results:: - - constrain(x,a++,b); // avoid this - yields incorrect results - - constrain(x,a,b); // use this instead- - a++; // keep other math outside constrain() - -Arduino Compatibility ---------------------- - -Maple's implementation of ``constrain()`` is compatible with Arduino. - -See also --------- - -- :ref:`min() <lang-min>` -- :ref:`max() <lang-max>` - - -.. include:: cc-attribution.txt |