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.
Syntax:
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 specifies the value compared to.
- low: This specifies the lower range.
- high: This specifies the higher range.
- p: This specifies the predicate function.
Return Value: The function returns three values as described below:
- 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.
Program-1:
#include <bits/stdc++.h>
#include <boost/algorithm/clamp.hpp>
using namespace std;
int main()
{
int value = 5;
int low = 10, high = 20;
int ans
= boost::algorithm::clamp(value, low, high);
cout << ans;
return 0;
}
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Program-2:
#include <bits/stdc++.h>
#include <boost/algorithm/clamp.hpp>
using namespace std;
int main()
{
int value = 25;
int low = 10, high = 20;
int ans
= boost::algorithm::clamp(value, low, high);
cout << ans;
return 0;
}
|
Program-3:
#include <bits/stdc++.h>
#include <boost/algorithm/clamp.hpp>
using namespace std;
int main()
{
int value = 15;
int low = 10, high = 20;
int ans
= boost::algorithm::clamp(value, low, high);
cout << ans;
return 0;
}
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Reference: https://www.boost.org/doc/libs/1_70_0/libs/algorithm/doc/html/the_boost_algorithm_library/CXX14/mismatch.html