Problems - writing File

Code:

---

void add_seating(struct_seating seating_temp)
{     
        FILE *fp_index, *fp_seating;
        int i = 0;
        int j =0;
        int cont =1;
        int  continue_index = 1;

        indexS index_temp[FILE_SIZE];
        //struct_seating seating_temp;
       
        fp_index = fopen("array_seating_index.bin", "r+b");
       
        if(fp_index == NULL)
        {
                fprintf(stderr, "Error, File: array_seating_index.bin");
        }
       
        fp_seating = fopen("array_seating.bin", "r+b");
       
        if(fp_seating == NULL)
        {
                fprintf(stderr, "Error, File: array_seating.bin");
        }
        fread(&index_temp[0],sizeof(indexS),1,fp_index);
     
        while(cont ==1)
        {
                j=0;
       
                fseek(fp_seating, i*sizeof(struct_seating),SEEK_SET);
        printf("Value is: %d\n", seating_temp.sectionA[0]); //prints correct value of sectionA[0]
                fread(&seating_temp, sizeof(struct_seating),1,fp_seating);
        printf("Value is, before if: %d\n", seating_temp.sectionA[0]); //Doesnt print correct value of sectionA[0]
     
                if(seating_temp.event_num == 0)
                {
                        printf("Value is: %d\n", seating_temp.sectionA[0]);
                        fseek(fp_seating, i*sizeof(struct_seating),SEEK_SET);
                        fwrite(&seating_temp, sizeof(struct_seating),1,fp_seating);
                                       
                        while(continue_index ==1)
                        {
       
                                if(index_temp[j].index_event_num == 0)
                                {
                                        //printf("equal to 0\n");
                                        index_temp[j].index_event_num = seating_temp.event_num;
      index_temp[j].index_seating = i;
               
                                        fseek(fp_index, 0*sizeof(indexS),SEEK_SET);
                                        fwrite(&index_temp[0],sizeof(indexS),1,fp_index);
                                        continue_index = 0;
                                }
                                else
               
                                if(j == FILE_SIZE)
                                {
                                        printf("File ***** full!\n");
                                        printf("j is: %d\n");
                                        continue_index = 0;
                                }
                                j++;
                        }
                                       
                        cont = 0;
                }
                else
                if(i == FILE_SIZE - 1)
                {
                        fprintf(stderr, "File full!!!\n");
                        cont = 0;
                }
                else
                        i++;
        }
                                       
        fclose(fp_seating);
        fclose(fp_index);
                               
}

---

There are two comments there that show the value of sectionA[0] are changed. If I take out he fread, where the comments are, the value remains okay, however I never have anything written to the file, and I dont know why.

Anyone?

Thanks.

After fixing several functions, I have a few more questions, and a little puzzled.

I pass the fucntion a struct, when I perform the first fread, is it not reading from the stream, which is a file?

If so, my struct is never read, but what is in the file is.

Can someone explain this for me?

Thanks again.

After looking at the code, I realized the problem.

I was writing a dummy record to the file, instead of the one passed as a param.:rolleyes: