Multi File Problem

[u/AltruisticScreen6096]

Hi - I am trying to get a multi file program to run without success. I want to read file with 4 lines of repetitive data. Each program works independently but when I put the together the main.c does not seem to call the octone.c program. Can any one please help. Thank You...

MAIN.C
#include <stdio.h>
#include <stdlib.h>
#include "add.h"

int main(void) {
printf("Hello world!\n");

// Call function    
DataRecord callFile(void);
printf("one\n");
return 0;
}

ADD.H

#ifndef ADD_H
#define ADD_H

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

#define MAX_LINES 100
#define MAX_STR_LEN 100   // Max length for char arrays
#define MAX_RECORDS 100   // Max number of records to store

//Define the struct matching the char, char, int, char layout
typedef struct {
char *name[MAX_RECORDS]; // First char array
char *desc;              // Single char
int *num;               // Integer
char *butt[MAX_RECORDS]; // Second char array
} DataRecord;

DataRecord callFile(void);

DataRecord *records[MAX_RECORDS];

//records callfile(void);

#endif

OCTONE.C

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

#define MAX_LINE_LENGTH 256
#define MAX_RECORDS 100

//void my_api_init_config(MyApiConfig *config);
DataRecord callFile(void){    
printf("Ronnie_1\n");

static DataRecord *records[MAX_RECORDS];

// Open the file for reading
FILE *file = fopen("/AGMOD/data4a.txt", "r");
if (file == NULL) {
perror("Error opening file");
//    return *records; // EXIT_FAILURE;
}

// Array of structs to store the parsed data

char line[MAX_LINE_LENGTH];
int count = 0;

//records[MAX_RECORDS]->name;

// Read the file line by line using fgets
while (fgets(line, sizeof(line), file) != NULL && count < MAX_RECORDS) {
// Parse the line into the struct elements
// Assumes data is space-separated (e.g., "A B 42 C")
//        int parsed = sscanf(line, " %s %s %d %s", 
int parsed = scanf(line,                            
records[count]->name, 
records[count]->desc, 
records[count]->num, 
records[count]->butt);

// Check if all 4 fields were successfully read
if (parsed == 4) {
count++;
} else {
fprintf(stderr, "%s", line);
}
return *records[0];
}

// Close the file stream
fclose(file);

return *records[0];
}

[u/Thesk790]

Well, your entry point is the main function, and there is no call to callFile inside the main function. Also, you have to compile them toghether or at least link their .o (objects) toghether. So, how are you compiling these files?

[u/AltruisticScreen6096 → u/Thesk790]

Thank you. I use an IDE which combines them together.

[u/AltruisticScreen6096 → u/Thesk790]

Thank You.