This function is used to return the remainder(modulus) of 2 floating point numbers mentioned in its arguments and also stores the quotient to the pointer passed to it. The quotient computed is rounded. remainder = number – rquot * denom Where rquot is the result of: numerator/denominator, rounded toward the nearest integral value (with halfway cases rounded toward the even number). Syntax:
long double remquo(long double a, long double b, int* q);
double remquo(double a, double b, int* q);
float remquo(float a, float b, int* q);
a and b are the values of numerator and denominator. q is the pointer in which quotient will be stored.
Return:
It returns the floating point remainder of numerator/denominator rounded to nearest and stores quotient in q.
Error:
- It is mandatory to give all the three arguments otherwise it will give error no matching function for call to 'remquo'.
- It is mandatory to pass third argument a pointer because it stores address of quotient otherwise it will give error 'remquo(double&, double&, int&)'
Time Complexity: O(1)
Space Complexity: O(1)
Examples:
Input : remquo(12.5, 2.2, &q)
Output : -0.7 and q=6
Explanation:
Input : remquo(-12.5, 2.2, &q)
Output : 0.7 and q=-6
# CODE 1
CPP
// CPP implementation of the above
// function
#include <cmath>
#include <iostream>
using namespace std;
int main()
{
int q;
double a = 12.5, b = 2.2;
// it will return remainder
// and stores quotient in q
double answer = remquo(a, b, &q);
cout << "Remainder of " << a << "/"
<< b << " is " << answer << endl;
cout << "Quotient of " << a << "/"
<< b << " is " << q << endl
<< endl;
a = -12.5;
// it will return remainder
// and stores quotient in q
answer = remquo(a, b, &q);
cout << "Remainder of " << a << "/" << b
<< " is " << answer << endl;
cout << "Quotient of " << a << "/" << b
<< " is " << q << endl
<< endl;
b = 0;
// it will return remainder
// and stores quotient in q
answer = remquo(a, b, &q);
cout << "Remainder of " << a << "/" << b
<< " is " << answer << endl;
cout << "Quotient of " << a << "/" << b
<< " is " << q << endl
<< endl;
return 0;
}
OUTPUT :
Remainder of 12.5/2.2 is -0.7
Quotient of 12.5/2.2 is 6
Remainder of -12.5/2.2 is 0.7
Quotient of -12.5/2.2 is -6
Remainder of -12.5/0 is -nan
Quotient of -12.5/0 is -6
# CODE 2
CPP
// CPP implementation of the
// above function
#include <cmath>
#include <iostream>
using namespace std;
int main()
{
int q;
double a = 12.5;
int b = 2;
// it will return remainder
// and stores quotient in q
double answer = remquo(a, b, &q);
cout << "Remainder of " << a << "/" << b
<< " is " << answer << endl;
cout << "Quotient of " << a << "/" << b
<< " is " << q << endl
<< endl;
return 0;
}
OUTPUT :
Remainder of 12.5/2 is 0.5
Quotient of 12.5/2 is 6
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