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This article introduces the knowledge of "how C language calculates the byte size of int, float, double and char". In the operation of practical cases, many people will encounter this dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Use the sizeof operator to calculate the byte size of four variables int, float, double, and char.

Sizeof is a monocular operator of C language, such as other operators of C language + +,--, etc., it is not a function.

The sizeof operator gives the storage size of its operands in bytes.

Example

# include

Int main () {

Int integerType

Float floatType

Double doubleType

Char charType

/ / the sizeof operator is used to calculate the byte size of a variable

Printf ("Size of int:% ld bytes\ n", sizeof (integerType))

Printf ("Size of float:% ld bytes\ n", sizeof (floatType))

Printf ("Size of double:% ld bytes\ n", sizeof (doubleType))

Printf ("Size of char:% ld byte\ n", sizeof (charType))

Return 0

}

Running result:

Size of int: 4 bytesSize of float: 4 bytesSize of double: 8 bytesSize of char: 1 byte "how the C language calculates the byte size of int, float, double and char", thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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