infinity C++
Infinity in C++
To represent infinity in C++, you can use the std::numeric_limits
class from the <limits>
header. The std::numeric_limits
class provides information about the properties of arithmetic types, including the representation of infinity.
First, include the <limits>
header at the top of your C++ file:
#include <limits>
Next, use the std::numeric_limits
template to obtain the infinity value for a specific data type. For example, to get the infinity value for a double, you can use the following code:
double infinity = std::numeric_limits<double>::infinity();
This code retrieves the infinity value for the double
data type and assigns it to the variable infinity
. You can similarly obtain the infinity value for other data types such as float
, int
, long
, etc., by replacing double
with the desired data type.
Using std::numeric_limits
is a portable and reliable way to obtain infinity in C++ regardless of the underlying system's representation of infinity.