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C double Keyword

❮ C Keywords

Example

double myNum = 19.99;
printf("%lf", myNum);
Try it Yourself »

Definition and Usage

The double keyword is a data type which stores fractional numbers.

It is usually 64 bits (8 bytes) long, and it can store positive and negative numbers with values between 1.7e−308 and 1.7e+308.

Related Pages

Read more about data types in our C Data Types Tutorial.

❮ C Keywords

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