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What does word mean in C language?

Apr 13, 2024 pm 06:48 PM
c language

In C language, word is a data type that represents the natural unit data size in computer architecture, usually 32 bits or 64 bits. It is often used to store pointers, optimize memory access, and low-level programming. Its size can be obtained through the sizeof(word) macro, and the maximum and minimum values ​​are WORD_MAX and WORD_MIN respectively.

What does word mean in C language?

word

In C language,word is a data type that represents a natural unit of data size in computer architecture, usually 32 or 64 bits.

Purpose

##word The type is often used in the following situations:

    Storage pointers: the size of the pointer is the same as
  • word are equal in size, so word is ideal for storing pointers.
  • Optimize memory access: By using
  • word to align data, memory access efficiency can be improved.
  • Low-level programming:
  • word is used to directly operate hardware registers or perform bit operations.

Size

# The size of word depends on the computer architecture:

    32-bit architecture : 32-bit
  • 64-bit architecture: 64-bit

Usage

Can be used in C language

word Variables of type:

word num = 0x12345678;

can also be accessed using the following predefined macros

word Size:

    ##sizeof(word)
  • : word Size of the type in bytes
  • WORD_MAX
  • : word Maximum value of the type
  • WORD_MIN
  • : Minimum value of type word
Example

Here is an example using

word

Example code for type: <pre class='brush:php;toolbar:false;'>#include &lt;stdint.h&gt; int main() { word pointer; // 32 位或 64 位指针 // 将指针赋值给一个地址 pointer = 0x10000000; // 使用指针访问内存 *pointer = 0x55; return 0; }</pre>

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