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Double Precision Floating Point Data Type
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Tutorials
Cpp
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Topic |
How is "double" datatype used in C++?.
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Explanation |
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The "double" precision floating point data type is used to represent floating point numbers that occupies 8 bytes. The range of
values for the "double" datatype is between +/- 1.7e to +/- 308.
Example:
#include <iostream.h>
void main()
{
double a = 1000000.0;
cout << "Double Precision Floating Point is:" << a << '\n';
cout << "Bytes occupied is:" << sizeof(a);
}
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Result:
Double Precision Floating Point is: 1e+06
Bytes occupied is: 8
In the above example, the value of the double floating point number is displayed along with the bytes occupied by the "double" data type.
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| Note |
C++ is one of the most used programming languages in the world. Also known as "C with Classes".
Hope you enjoy this tutorial. Do send your feedback or suggestions on this C++ tutorial. This is a copyright content.
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