Thread: Getting input data fram screen with a function ?

How can i use a function for getting input data then putting it back in the main program?(I am new with C)
i tried but it didn't seem to be working
could u help me with this
Cheers
#include <stdio.h>
#include<string.h>
char CheChar();
struct code
{
char input[10];
};
main(void)
{
struct code c;

CheChar();
printf(c.input);

}

//******function****
char CheChar( )
{
struct code co;
bool r=true;
do
{
puts("Enter Code:");
gets(co.input);
if (strlen(co.input)!=10)
{
r=false;
printf(" ! code must be character and not more than 10 Chars! ");
}
}while(!r);

return co.input;
}

You have defined function CheChar to return a char. When you call CheChar from main the value returned by CheChar is discarded. You probably want to save that value in c.input.

Tip: don't use gets (fgets is more save).
Tip: input is 10 characters long. that's 9 chars and a null character to terminate the string.
Tip: find a good C Tutorial site with some examples

I'm not going to make your code work because I'm too lazy and you don't learn anything from it. Here's a small example.

Code:

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

void get_line(char *line);
char *get_line2(char *line);

int main( void )
{
  char line[1024];
  get_line(line);
  printf(line);
  printf(get_line2(line));
  return 0;
}

void get_line(char *line)
{
  strcpy(line, "Hello world!\n");
}

char *get_line2(char *line)
{
   strcpy(line, "Hello world2!\n");
   return line;
}