xc8编译器对指针的处理是怎样做的，我这个代码警告说有冲突

只看该作者 · 2016-1-15 11:20

PIC16F883，MPLAB X IDE在调用该函数是，编译出现警告，我想搞明白是为什么？求助大神啊，新人求指点
unsigned char Check_Cmd(unsigned char *Ack,unsigned int Waittime)
{
char *Strx= NULL;
unsigned char i;
unsigned int Acklen;
CommRecBufferTail2=0;
for(i=0;i<10;i++)
receive_cmd[i]=0;
if(Waittime) //ÐèÒªµÈ´ýÓ¦´ð
{
while(--Waittime) //µÈ´ýµ¹¼ÆÊ±
{
Delay_100us(1);
Acklen=strlen(Ack);
if(CommRecBufferTail2>=Acklen)
{
Strx=strstr((const char*)receive_cmd,(unsigned char*)Ack);
if(Strx)
{
break;
}
}
}
}
return (unsigned char*)Strx;
}

wifi.c:176: warning: (358) illegal conversion of pointer to integer
wifi.c:190: warning: (361) function declared implicit int
wifi.c:201: warning: (359) illegal conversion between pointer types
pointer to const unsigned char -> pointer to unsigned char
wifi.c:210: warning: (359) illegal conversion between pointer types
pointer to const unsigned char -> pointer to unsigned char
wifi.c:226: warning: (359) illegal conversion between pointer types