Thread: How to terminate the entry by enter a ctrl+z

Code:

#include <stdio.h>
#include <stdlib.h>
#define MAX 1000

int main()
{
    FILE *outFile;
    char filename[50];
    char message[MAX];
    int i;
    
    printf("Please input a filename: ");
    gets(filename);
    
    outFile = fopen(filename,"r");
    
    if (outFile == NULL)
    {
       outFile = fopen(filename,"w");
       printf("\nThe file %s is created successfully!.",filename);

       printf("\n\nYou may start to input your message now!!\n");
       printf("Please enter Control-Z when finished.\n\n");
       
       gets(message);

       ****problems here****

    }
    else
    {
       printf("\nThe file is currently exist.");
       printf("\nPlease enter another filename.");
    }
    
    fflush(stdin);
    getchar();
    
    return 0;
}

The problem is that it should terminates after '^Z' but not '\n'.
What should I add to make it work?

>> gets(filename);

Not a great idea really.

What's wrong with the user just pressing enter to finish whatever they're saying? look into fgets I'd say.

Also fflush( stdin ); is not a very good idea either.

i want to enter a string within '\n' (a newline)
so, the program need a ctrl+z to terminate

well u could use do..while loop to do that.

ssharish2005

Originally Posted by ssharish2005

well u could use do..while loop to do that.

ssharish2005

i'm sorry i don't really understand how to do it
can you elaborate a little bit more, thanks

Not that ssharish's solution is non-standard, <conio.h> must be included.

I'll try by myself, anyway thanks

Originally Posted by twomers

Not that ssharish's solution is non-standard, <conio.h> must be included.

Sorry i dint get you. How is it non standard. Are u pointing out the getchar(). anything else. If it is so getchar is standard fucntion. And ofcourse I missed a "&&" in my last post.

NOTE: The code has been updated

ssharish2005

Sorry man. My bad. I read getch() instead of getchar(). Sorry again.