# Ratio Manipulations in C++ | Set 2 (Comparison)

Manipulating ratio arithmetic has been discussed in Set 1 below

Ratio Manipulations in C++ | Set 1(Arithmetic)

1. ratio_equal :- This templete alias checks if the ratios in its arguments are equal. Returns true if equal, else returns false. It returns a boolean member constant “value”.

1. ratio_not_equal :- This templete alias checks if the ratios in its arguments are not equal. Returns true if not equal, else if equal returns false. It returns a boolean member constant “value”.

 `// C++ code to demonstrate the working of ` `// ratio_equal and ratio_not_equal ` `#include ` `#include // for ratio manipulation ` `using` `namespace` `std; ` `int` `main() ` `{ ` `    ``// Declaring ratios  ` `    ``typedef` `ratio<10, 100> ratio1; ` `    ``typedef` `ratio<1, 10> ratio2; ` `     `  `    ``// Checking if ratios are equal using ratio_equal ` `    ``ratio_equal::value ?  ` `              ``cout << ``"Ratios are equal"` `: ` `              ``cout << ``"Ratios are not equal"``; ` `    ``cout << endl; ` `      `  `     ``// Checking if ratios are not equal using ratio_not_equal ` `    ``ratio_not_equal::value ?  ` `               ``cout << ``"Ratios are not equal"` `: ` `               ``cout << ``"Ratios are equal"``; ` `     `  `    ``return` `0; ` `     `  `} `

Output:

```Ratios are equal
Ratios are equal
```

3. ratio_greater :- This temporary alias check if ratio1 is greater than ratio2. It returns a boolean member constant “value” which returns true if ratio1 is greater than ratio2 else returns false.

4. ratio_less :- This temporary alias check if ratio1 is less than ratio2. It returns a boolean member constant “value” which returns true if ratio1 is less than ratio2 else returns false.

 `// C++ code to demonstrate the working of ` `// ratio_greater and ratio_less ` `#include ` `#include // for ratio manipulation ` `using` `namespace` `std; ` `int` `main() ` `{ ` `    ``// Declaring ratios  ` `    ``typedef` `ratio<10, 100> ratio1; ` `    ``typedef` `ratio<11, 100> ratio2; ` `     `  `    ``// Checking if ratio1 is greater than ratio2  ` `    ``// using ratio_greater ` `    ``ratio_greater::value ?  ` `             ``cout << ``"ratio1 is greater than ratio2"` `: ` `             ``cout << ``"ratio1 is not greater than ratio2"``; ` `    ``cout << endl; ` `      `  `    ``// Checking if ratio1 is less than ratio2  ` `    ``// using ratio_less ` `    ``ratio_less::value ?  ` `             ``cout << ``"ratio1 is less than ratio2"` `: ` `             ``cout << ``"ratio1 is not less than ratio2"``; ` `    ``cout << endl; ` `     `  `    ``return` `0; ` `     `  `} `

Output:

```ratio1 is not greater than ratio2
ratio1 is less than ratio2
```

5. ratio_greater_equal :- This temporary alias check if ratio1 is greater or equal than ratio2. It returns a boolean member constant “value” which returns true if ratio1 is greater or equal than ratio2 else returns false.

6. ratio_less_equal :- This temporary alias check if ratio1 is less or equal than ratio2. It returns a boolean member constant “value” which returns true if ratio1 is less or equal than ratio2 else returns false.

 `// C++ code to demonstrate the working of ` `// ratio_greater_equal and ratio_less_equal ` `#include ` `#include // for ratio manipulation ` `using` `namespace` `std; ` `int` `main() ` `{ ` `    ``// Declaring ratios  ` `    ``typedef` `ratio<10, 100> ratio1; ` `    ``typedef` `ratio<1, 10> ratio2; ` `     `  `    ``// Checking if ratio1 is greater or equal than ratio2  ` `    ``// using ratio_greater_equal ` `    ``ratio_greater_equal::value ?  ` `           ``cout << ``"ratio1 is greater or equal than ratio2"` `: ` `           ``cout << ``"ratio1 is not greater or equal than ratio2"``; ` `    ``cout << endl; ` `      `  `    ``// Checking if ratio1 is less or equal than ratio2  ` `    ``// using ratio_less_equal  ` `    ``ratio_less_equal::value ?  ` `           ``cout << ``"ratio1 is less or equal than ratio2"` `: ` `           ``cout << ``"ratio1 is not less or equal than ratio2"``; ` `    ``cout << endl; ` `     `  `    ``return` `0; ` `     `  `} `

Output:

```ratio1 is greater or equal than ratio2
ratio1 is less or equal than ratio2
```

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