Reference   Language | Libraries | Comparison | Changes

constrain(x, a, b)


Constrains a number to be within a range.


x: the number to constrain, all data types

a: the lower end of the range, all data types

b: the upper end of the range, all data types


x: if x is between a and b

a: if x is less than a

b: if x is greater than b


sensVal = constrain(sensVal, 10, 150);
// limits range of sensor values to between 10 and 150 

See also

Reference Home

Corrections, suggestions, and new documentation should be posted to the Forum.

This reference is licensed under a Creative Commons Attribution-ShareAlike 3.0 License and is based on the Arduino reference. Code samples in the reference are released into the public domain.