What are the basic data types allowed in C language?

The basic data types allowed in the C language include: integers (short, int, long), real types (single-precision float, double-precision double), and character types (char).

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The C language has 3 basic data types:

• Integer type represents an integer, usually including "short", "int", "long", etc.

• Real type, "real type" is floating point data, including "float", "double", etc.

  "Real type" is usually used to represent real numbers, and can also be used to represent decimals that cannot be represented by integers.

• Character type, "Character type" is "char" type data, which is usually used to represent various characters.

  "Character type" corresponds to "ASCII" code one-to-one.

Extended information:

Data types included in C language

Among them, the six keywords short, int, long, char, float, and double represent the six basic data types in C language.

On different systems, the length of bytes occupied by these types is different:

On 32-bit systems

• short occupies The memory size is 2 bytes; the memory size occupied by

• int is 4 bytes; the memory size occupied by

• long is 4 bytes ;

• The memory size occupied by float is 4 bytes;

• The memory size occupied by double is 8 bytes;

• The memory size occupied by char is 1 byte.

You can use sizeof to test it.

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