Question

C编程出错：not in formal parameter list

#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#include "protocol.h"
#include "datalink.h"

#define DATA_TIMER 2000
#define MAX_SEQ 7

//PKT_LEN只是数据长度, packet也只含数据部分，数据链路层加上三个帧头信息，物理层加上4CRC

//typedef enum{false,true} boolean;
//typedef unsigned int seq_nr;
typedef struct {unsigned char data[PKT_LEN];}packet; //packet buffer[]:相当于二维数组
//typedef enum{data,ack,nak}frame_kind;

struct FRAME {
packet info;
unsigned char kind; /* FRAME_DATA */
unsigned char ack;
unsigned char seq;
// unsigned char data[PKT_LEN];
unsigned int padding; //位填充
};

static unsigned char frame_nr = 0;
//static unsigned char frame_expected = 0;
static int phl_ready = 0;

static int betw(unsighed char a,unsighed char b,unsighed char c)
{
if(((a<=b)&&(b<c))||((c<a)&&(a<=b))||((b<c)&&(c<a)))
return 1;
else
return 0;
}
就是在这行：static int betw(unsighed char a,unsighed char b,unsighed char c)
error C2143: syntax error : missing ')' before 'type'
F:\计网试验\datalink.c(32) : error C2085: 'a' : not in formal parameter list
F:\计网试验\datalink.c(32) : error C2143: syntax error : missing ';' before 'type'
F:\计网试验\datalink.c(32) : error C2085: 'b' : not in formal parameter list
F:\计网试验\datalink.c(32) : error C2143: syntax error : missing ';' before 'type'
F:\计网试验\datalink.c(32) : error C2059: syntax error : ')'
F:\计网试验\datalink.c(33) : error C2085: 'c' : not in formal parameter list
F:\计网试验\datalink.c(33) : error C2143: syntax error : missing ';' before '{'
F:\计网试验\datalink.c(34) : error C2065: 'a' : undeclared identifier
F:\计网试验\datalink.c(34) : error C2065: 'b' : undeclared identifier
F:\计网试验\datalink.c(34) : error C2065: 'c' : undeclared identifier
F:\计网试验\datalink.c(83) : error C2065: 'unsighed' : undeclared identifier
F:\计网试验\datalink.c(83) : error C2143: syntax error : missing ';' before 'type'
F:\计网试验\datalink.c(84) : error C2143: syntax error : missing ';' before 'type'
F:\计网试验\datalink.c(85) : error C2143: syntax error : missing ';' before 'type'
F:\计网试验\datalink.c(86) : error C2275: 'packet' : illegal use of this type as an expression
F:\计网试验\datalink.c(15) : see declaration of 'packet'
F:\计网试验\datalink.c(86) : error C2146: syntax error : missing ';' before identifier 'buffer'
F:\计网试验\datalink.c(86) : error C2065: 'buffer' : undeclared identifier
F:\计网试验\datalink.c(86) : error C2109: subscript requires array or pointer type
F:\计网试验\datalink.c(87) : error C2143: syntax error : missing ';' before 'type'
F:\计网试验\datalink.c(88) : error C2143: syntax error : missing ';' before 'type'

Answer 1

眼神儿需要犀利，单词打错了，unsigned...不是unsighed。。。仔细检查下

Answer 2

static int betw(unsighed char a,unsighed char b,unsighed char c)
改为
static int betw(unsigned char a,unsigned char b,unsigned char c)

Answer 3

....有点多啊