Why program show me too few arguments for call-CodePudding

#include<stdio.h>
#include"student.h"
int main()
{
    // student 1
    
    STUDENT lux = Createstudent("2003056789-lux aa ren");
    printf("NAME：%s\n", GetNameFromStudent(lux));


    // student 2
    
    STUDENT a = Createstudent("2004069876-bb cc");
    printf("NAME：%s\n", GetNameFromStudent(a));
    printstudent(a);

    // student 3
    
    STUDENT b = Createstudent("2003081234-DD EE gg");
    printf("NAME：%s\n", GetNameFromStudent(b));
    printstudent(b);

    // student 4
    STUDENT c = Createstudent("2003074521-QQ RR YY");
    printf("NAME：%s\n", GetNameFromStudent(c));
    printstudent(c);

    // student 5
    STUDENT d = Createstudent("2003017623-MM NN JJ");
    printf("NAME：%s\n", GetNameFromStudent(d));
    printstudent(d);
    return 0;
}

header.file this is my header.file

#pragma once

#define MAXSIZE   25

typedef struct student
{
    int studentnum;
    char firstname[MAXSIZE];
    char lasttname[MAXSIZE];
    char middelname[MAXSIZE];
}STUDENT;


STUDENT Createstudent(int, char[], char[], char[]);
void printstudent(STUDENT);

the program asks me to print 5 different students and need to use a header.file I am not sure why had a C2198 error on my program I try to separate the student but I don't know how?

CodePudding user response：

Your prototype says STUDENT Createstudent(int, char[], char[], char[]); takes 4 arguments (int, char[], char[], char[]) but you call it STUDENT lux = Createstudent("2003056789-lux aa ren"); with 1 char [] argument "2003056789-lux aa ren".

You need to parse the string into individual elements, for instance, using sscanf(s, "%d-%s%s%s", &s->studentnum, s->firstname, s->middlename, s->lastname). Your second data entry only has 2 space separated words, so you need to figure out if that is bad data, or one of the 3 strings are optional. For instance, if you were only able to read 3 fields (sscanf() tells you how many fields) then s->lastname = s->middlename; s->middlename = NULL;

This or very similar problem has been discussed a number of times so use the search feature if you need more help. For instance: CSV File Input in C using Structures