The clamp() function in C++ boost library is found under the header ‘boost/algorithm/clamp.hpp’ contains two functions for “clamping” a value between a pair of boundary values.
const T& clamp ( const T& val, const T& lo, const T& hi ) or const T& clamp ( const T& value, const T& low, const T& high, Pred p )
Parameters: The function accepts parameters as described below:
- value: This speifies the value compared to.
- low: This specifies the lower range.
- high: This specifies the higher range.
- p: This specifies the predicate function.
- It returns low if value is less than low.
- It returns high if high is greater than value.
- In all other cases, it returns value.
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Return Value: The function returns three values as described below:
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