Thread: c question help for adv programmers

I have a structure called EMPDATA that contains char firstname[25] and other arrays. I have defined EMPDATA target; and I have used memcpy to copy inputted data such as firstname, lastname, etc into the structure EMPDATA target; I would like to display this information in a text file of all the inputted data. How would I go about doing this?

If you want it in text format then:

Code:

#include <stdio.h>

typedef struct {
  char name[25];
} EMPDATA;

void write(FILE *fp, EMPDATA *emp) {
  // if you want to put labels:
  fprintf(fp, "name: %s\n", emp->name);

  // without labels
  fputs(fp, emp->name);
}

int main() {
  EMPDATA emp;
  strcpy(emp.name, "Billy Bob");

  FILE *fp = fopen("output.txt", "w");
  write(fp, &emp);
  fclose(fp);

  return 0;
}

Or if you want it in binary:

Code:

#include <stdio.h>

typedef struct {
  char name[25];
} EMPDATA;

int main() {
  EMPDATA emp;
  strcpy(emp.name, "Billy Bob");

  FILE *fp = fopen("output.txt", "w");
  fwrite(&emp, sizeof(EMPDATA), 1, fp);
  fclose(fp);

  return 0;
}

Ok thanks, I'll play around with that when I get home...Why would you do it in binary format?

I gave you two options: text and binary. I wasn't sure how you wanted to save your data. You could've wanted it in xml or something else, haha.

Binary format is generally more compact, not easy for users to edit, but easier to read and write. It basically dumps the whole chunk of memory into a file. Then you just use:

Code:

fread(&emp, sizeof(EMPDATA), 1, fp);

...to read it.

empdata=e
use this code if you want

Code:

#include "stdio.h"
#include "conio.h"

typedef struct {
  char name[25]={'.','.','.','.','.','.','.','.,'.',.','.','.','.','.','.','.','.','.','.','.','.','.','.','.'};/* should be 25 */
} E;
d E;
void main()
{
int j;
for(j=0;i<25;j++)
{if (d.name[i]=='.'){break;}
/* (d.name[i])====> the caracter */
/*call function of writing  a character in the file */
/* tha's easy to do */
}
getch()
}

Quzah - thank you being the first person to publicly express what I've been wanting to say about enjoy's tenure here.