# remquo() in C++

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);
```

Parameter:

• 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:

1. It is mandatory to give all the three arguments otherwise it will give error no matching function for call to ‘remquo’.
2. It is mandatory to pass third argument a pointer because it stores address of quotient otherwise it will give error ‘remquo(double&, double&, int&)’
3. .

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 implementation of the above  ` `// function ` `#include ` `#include ` ` `  `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 implementation of the ` `// above function ` `#include ` `#include ` ` `  `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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