What is the number of character bytes in C language

The number of character bytes in C language depends on the character set and encoding method: ASCII character set (7 bits): occupies 1 byte. EBCDIC character set (8 bits): Takes 1 byte. UTF-8 encoding: occupies variable bytes, depending on Unicode characters.

Number of characters bytes in C language

In C language, the number of character bytes refers to the number of bytes occupied by a character in computer memory. The specific value depends on the character set and encoding method of the system.

Common character sets and encoding methods

• ASCII (American Standard Code for Information Interchange) : American standard information exchange code, a 7-bit encoding method that supports 128 characters.
• EBCDIC (Extended Binary Coded Decimal Interchange Code) : Extended binary code decimal exchange code, is an 8-bit encoding method that supports 256 characters.
• UTF-8 (8-bit Unicode Transformation Format) : A variable-length encoding format used to represent Unicode characters.

Number of characters bytes in C language

In C, the number of bytes of a character type ( char ) depends on the character set used and the compiler settings.

• ASCII character set : In most systems, the char type takes up 1 byte and can store 128 ASCII characters.
• EBCDIC character set : In some mainframe systems, char type takes up 1 byte and can store 256 EBCDIC characters.
• Unicode character set : When using UTF-8 encoding, the char type takes up a variable number of bytes, depending on the Unicode character to be represented.

How to determine the number of characters bytes

To determine the number of bytes of char type in a specific system, you can perform the following steps:

• Include the header file <stddef.h></stddef.h> in the C code.
• Use sizeof operator to get the number of bytes of type char :

 <code class="c">#include <stddef.h> int main() { printf("Size of char: %zu bytes\n", sizeof(char)); return 0; }</stddef.h></code>

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