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Long / Extended Double Precision Floating Point Data Type
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Tutorials
Cpp
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Topic |
How is "long double" datatype used in C++?.
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Explanation |
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The "Long Double" or "Extended Double" data type is used to represent floating point numbers that occupies 8 bytes. This extented precision datatype is more precise than the "double" datatype. The range of values for the datatype is between
+/- 1.7e and +/- 308.
Example:
#include <iostream.h>
void main()
{
double l = 1000000000.0;
cout << "Long double floating number is:" << l << '\n';
cout << "The bytes occupied is:" << sizeof(l);
}
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Result:
Extended Double precision floating number is: 1e+09
The bytes occupied is: 8
In the above example the value of the long double floating point precision number is displayed along with the bytes occupied by the "long double" datatype.
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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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