How to fetch values in array in C?

Question

I want the result to be appear as

Here is your name: John
Here is your Date of birth: 02/02/1999

Although name, DOB are present in array and I am successfully fetching those values of name, dob etc. But the problem is that it is giving me this problem.

Here is your name: John
Here is your name: 02/02/1999
Here is your name: 442342352

Means with every value it is giving me only name, although everything is present in array.

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

int main(){
    const char listings[5][51] = {"Name", "Date of birth","ID card number","Phone number","Address"};
    FILE * fr = fopen("/home/bilal/Documents/file.txt","r");
    char ch[100];
    int index = 0;
    for (int i=0; i<5; i++){
        if(fr != NULL){
            while((ch[index] = fgetc(fr)) != EOF){
                if(ch[index] == ' ') {
                    ch[index] = '\0';
                    printf("Here is your %s: %s\n",listings[i], ch);
                    index = 0;
                }
                else {
                    index++;
                }
            }
            fclose(fr);
        }
        else{
            printf("Unable to read file.");
        }
    }
    return 0;
}

The for loop should be inside the if (fr != NULL) test, not the other way around. — Barmar
– Barmar, Commented May 15, 2020 at 1:13

AugustoSerrao · Accepted Answer · 2020-05-15 01:06:12Z

1

You are looping through the whole at once, your 'i' is never incremented. Then, increment it inside the while loop.

while((ch[index] = fgetc(fr)) != EOF){
       if(ch[index] == ' ') {
           ch[index] = '\0';
           printf("Here is your %s: %s\n",listings[i], ch);
           index = 0;
           i++;
       }
       else {
             index++;
       }
   }

Don't forget to erase the for loop.

answered May 15, 2020 at 1:06

AugustoSerrao

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4 Comments

Barmar Over a year ago

i is the iteration variable of for (int i = 0; i < 8; i++)

Barmar Over a year ago

You need a different variable for the index into listings.

Natasha Bibi Over a year ago

If for loop erased then how will I put value of i?

AugustoSerrao Over a year ago

Just initialize it with zero out of the while loop.

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