每个结构调用使用一次的结构函数指针

头文件

typedef struct
{
    void (*Start)(void);
    void (*ByteWrite)(uint8_t *pBuffer);        // Modifies I2C buffer
    uint8_t (*ByteRead)(uint8_t *pBuffer);
    void (*ArrayWrite)(uint8_t *pBuffer);
    uint8_t (*ArrayRead)(uint8_t *pBuffer);
    bool (*Busy)(void);
} sI2C_t;


extern const sI2C_t I2C0;
extern const sI2C_t I2C1;
extern const sI2C_t I2C2;

然后在C文件中实现每个函数指针以满足结构接口.

C档案

static void I2C0_Start(void) { ... }
static void I2C0_ByteWrite(*uint8_t) { ... }
static uint8_t I2C0_ByteRead(*uint8_t) { ... }
static void I2C0_ArrayWrite(*uint8_t) { ... }
static uint8_t I2C_ArrayRead(*uint8_t) { ... }
static bool I2C_Busy(void) { ... }

const sI2C I2C0 =
{
    I2C0_Start,I2C0_ByteWrite,I2C0_ByteRead,I2C0_ArrayWrite,I2C0_ArrayRead,I2C0_Busy
};

// Code-block repeated for I2C1,I2C2,etc. (REDUNDANT!)

这使得访问I2C接口特定功能变得相对容易：

bool status;

I2C0.Start();
status = I2C1.Busy();
...

虽然函数指针对于I2C0,I2C1和I2C2等基本相同,但我必须为每个新的结构接口单独写出它们.由于这是多余的,我有没有办法只实现一次这些函数指针？