typedef unsigned char boolean; typedef unsigned long int uint32; typedef unsigned short uint16; typedef unsigned char uint8; typedef signed long int int32; typedef signed short int16; typedef signed char int8; //下面的不建议使用 typedef unsigned char byte; typedef unsigned short word; typedef ...
typedef signed char int8_t固定大小的数据类型宏定义,一个字节八位 typedef char *pChar typedef char pChar[10] 函数声明 对于typedef void (*fp) (int);,其中fp代表一个函数指针,可用于简化某些复杂函数的声明。 比如对于信号处理signal函数,接受两个参数: 1. 需要“被捕获”的特定signal的整数值,类型为int...
6typedefsignedcharINT8; 7typedefsignedshortINT16; 8 9typedefsignedintINT32; 10 11typedeffloatFLOAT; 12 13typedefdoubleDOUBLE; 14 15typedefcharCHAR; 第二种:就是我们在stm32里面结构体定义的时候经常会看到(标准库操作): 今天我们要讲的typedef用法,平时大家一般可能都没怎么注意到,这里给大家总结一下,以便...
1typedef unsigned char UINT8; 2 3typedef unsigned short UINT16; 4typedef unsigned int UINT32; 5 6typedef signed char INT8; 7typedef signed short INT16; 8 9typedef signed int INT32; 10 11typedef float FLOAT; 12 13typedef double DOUBLE; 14 15typedef char CHAR; 1. 2. 3. 4. 5. 6....
typedef signed short int16; typedef signed char int8; //下面的不建议使用 typedef unsigned char byte; typedef unsigned short word; typedef unsigned long dword; typedef unsigned char uint1; typedef unsigned short uint2; typedef unsigned long uint4; ...
typedef unsigned charUINT8;typedef unsigned shortUINT16;typedef unsigned intUINT32;typedef signed charINT8;typedef signed shortINT16;typedef signed intINT32;typedef floatFLOAT;typedef doubleDOUBLE;typedef charCHAR; 第二种:就是我们在stm32里面结构体定义的时候经常会看到(标准库操作): ...
typedef unsigned short uint16; /* Unsigned 16 bit value */ typedef unsigned char uint8; /* Unsigned 8 bit value */ typedef signed long int int32; /* Signed 32 bit value */ typedef signed short int16; /* Signed 16 bit value */ typedef signed char int8; /* Signed 8 bit value *...
typedef char* PCHAR; int strcmp(const PCHAR,const PCHAR); 在上面的代码中,“const PCHAR” 是否相当于 “const char*” 呢? 答案是否定的,原因很简单,typedef 是用来定义一种类型的新别名的,它不同于宏,不是简单的字符串替换。 因此,const PCHAR 中的const 给予了整个指针本身常量性,也就是形成了...
为了保证平台的通用性,程序中尽量不要使用long数据库型。可以使用固定大小的数据类型宏定义: typedef signed char int8_t typedef short int int16_t; typedef int int32_t; # if __WORDSIZE == 64 typedef long…
4> signed int == signed == int: 4个字节 (%d、%i) float\double 1> float : 4个字节(%f) 2> double: 8个字节(%f) char 1> 1个字节 (%c %d) 2> char 类型保存在内存中的是它的 ASCII值('A' --> 65) 二、指针类型 根据地址找到对应存储空间,把里面的值拿出来,或者把新的值放进去,间接...