How to halt in program

[amarg]

Hi,

Before execuation, i want to display the text

Press enter to continue.....

and wait for the user to press enter key.
After that i want to execute my rest of the program.

I am working on ANSIC. Please guide me how only Enter is
enough as a input.

Regards,
Amar

 

[tazhicham]

#include <stdio.h>

void main(void){
char c;
printf(&quot;Press enter to continue...\n&quot;
do {
c=scanf(&quot;%c&quot;,&c);
}while (c!=&quot;\n&quot;
clrscr();
}

hope it'll help you.
hisham.

 

[Salem]

> void main(void){
Nope, main returns an int

> c=scanf(&quot;%c&quot;,&c);
scanf() returns the number of conversions, not the char entered.

> }while (c!=&quot;\n&quot;
That's a string on the right hand side.

To answer the question

int ch;
while ( (ch=getchar()) != EOF && ch != '\n' ); /* do nothing */

--

 

[amarg]

Hi,

Thanks Salem. Your solution is working,
But before while i have to use fflush(stdin).

Regards,
Amar

 

[Salem]

> But before while i have to use fflush(stdin).
Nope, that's not right either, use the while loop I posted earlier.

> I am working on ANSIC
In ANSI-C, fflush() is defined only for
- output streams
- update streams where the last operation was a write
Since stdin in input only, you can never call fflush(stdin) and have it do anything meaningful in every ANSI-C implementation. More specifically, it is undefined, which translates to being &quot;anything could happen&quot;.

Now some old PC compilers seemed to think that fflush(stdin) was a good idea, but you'll generally be in for a shock when all your implementation specific tricks stop working one day.

--

 

[amarg]

Hi,

I have one switch statement having lot of cases. For the
default case i am giving this halt. Now without using the
fflush(stdin), process is not wating for the enter key.

I don't have any explation about that but what u said is
perfect. I am not writing any program. I just want to check
that halt is working.
If you want i can send me the file. It's a same.


Regards,
Amar