# Which Data Type Is Accepted by Numeric Limit Function?

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Angela Bailey

Which Data Type Is Accepted by Numeric Limit Function?

The numeric_limits function is a powerful tool in C++ that allows you to retrieve information about the properties of various data types. It provides a way to obtain information such as the minimum and maximum values, precision, and other characteristics of numeric data types.

## Data Types Supported by Numeric Limit Function

The numeric_limits function can be used with a wide range of numeric data types, including:

• Integral Types: This includes data types such as int, short, long, char, and their unsigned counterparts.
• Floating-Point Types: This includes data types such as float, double, and long double.
• Numeric Limits: This includes specializations for various numeric limits, such as NumericLimits, which provides information specific to the int data type.
• User-Defined Types: If you have defined your own numeric type, you can also use the numeric_limits function with it by providing a specialization for that type.

The numeric_limits function provides several properties that can be accessed using its template parameters. Some of the most commonly used properties include:

• .min(): Returns the minimum representable value for the given data type.
• .max(): Returns the maximum representable value for the given data type.digits: Returns the number of significant digits that can be represented by the given data type.is_signed: Returns whether the given data type is signed or unsigned.epsilon(): Returns the difference between 1 and the smallest representable value greater than 1 for floating-point types.

## Example Usage

Let’s consider an example to see how the numeric_limits function can be used:

```#include <iostream>
#include <limits>

int main() {
std::cout << "Minimum value for int: " << std::numeric_limits<int>::min() << std::endl;
std::cout << "Maximum value for int: " << std::numeric_limits<int>::max() << std::endl;
return 0;
}
```

In this example, we include the <iostream> and <limits> headers to have access to the numeric_limits function. We then use the ::min() and ::max() member functions to obtain and print out the minimum and maximum values for the int data type.

## Conclusion

The numeric_limits function is a versatile tool in C++ that allows you to retrieve information about various properties of numeric data types. It supports a wide range of data types, including integral types, floating-point types, as well as user-defined types. By using this function, you can easily obtain valuable information about the characteristics of different numeric data types, such as their minimum and maximum values, precision, and signedness.

So go ahead and explore the capabilities of the numeric_limits function in C++ to gain a deeper understanding of your data types!