What does u16 mean in C language

In C language, u16 represents an unsigned 16-bit integer used to store non-negative integers. Its characteristics include: 1. Size: 16-bit; 2. Range: 0 to 65535; 3. Unsigned: Only positive numbers can be stored, 0 is the minimum value, and 65535 is the maximum value.

The meaning of u16 in C language

In C language, u16 represents an unsigned 16-bit integer . It is a data type used to store non-negative integers.

Features:

• Size: 16 bits
• Range: 0 to 65535
• Unsigned: Only positive numbers can be stored, 0 is the minimum value, 65535 is the maximum value

usage:

The u16 type variable is used to store integer data that does not require negative values, for example:

 <code class="c">u16 age = 25; // 存储一个无符号16 位整数u16 numStudents = 100; // 存储无符号的学生人数</code>

Compare with other integer types:

• signed int: 16-bit signed integer that stores negative and positive numbers.
• unsigned int: 16-bit unsigned integer, only positive numbers can be stored.
• int: In most systems, int is a 32-bit signed integer.

Reasons for choosing u16:

Reasons for choosing the u16 data type include:

• Store positive numbers instead of negative numbers
• Embedded systems with limited memory space
• Performance optimization: u16 operates faster than other integer types

Notice:

• The u16 variable cannot store negative numbers.
• If a negative number is assigned to the u16 variable, overflow occurs and meaningless positive numbers are generated.
• To prevent overflow, use u16 variables with caution and make sure they are only used without negative numbers involved.

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