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.
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
wordis 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 languageword 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
Here is an example using
word Example code for type: <pre class='brush:php;toolbar:false;'>#include <stdint.h>
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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