Pause a C program without getch()

I was wondering if there is another way to prevent a C program closing when user has been inputed data other than using getch(). I do not like using it. In C++, you can do this:

Code:

---

cin.ignore();
getchar();

---

But cin is a C++ keyword. When i use getch I have to include conio.h with the program which is a bit of a waste for the purpose of 1 statement. Is there a command under the stdio,h header that can execute the same way getch() does in conio,h?

Example:

Code:

---

#include <stdio.h>
#include <conio.h>  // this is annoying!

int main()
{
        int num1, num2;
        int sec = 0;
       
        printf("Enter my first secret nunber: ");
       
        scanf("%d", &num1);
       
        printf("\nEnter my second secret number: ");
       
        scanf("%d", &num2);
       
        /* logical AND */
       
        if (( num1 == 9 ) && ( num2 == 99 ))
        {
                    printf("\nWELL DONE!");
                    sec = 5;
    }
   
    /* logical OR */
       
        if (( num1 == 0 ) || ( num2 == 0 ))
        {
                    printf("\nNone of the numbers are zero");
                    sec = 4;
    }
   
    /* logical NOT */
       
        if ( !sec )
        {
                    printf("\nSorry, both or either numbers are incorrect");
    }
   
    getch();
   
    return 0;
}

---

getchar();
In stdio.h

You'll probably need to flush the input buffer before calling getchar
because scanf leaves the newline character in the buffer. easy
flush - taken from FAQ

Code:

---

int ch;
.
.
.
while ((ch = getchar()) != '\n' && ch != EOF);
printf ("Press enter to continue...");
getchar ();

---

or even just

Code:

---

while ('\n' != getchar ());
printf ("Press enter to continue...");
getchar ();

---

works for most, but the first is probably more correct.

in windows you could do a system("PAUSE")

that'd work, but that defeats the purpose of the post: system
is defined in stdlib.h, so you'd have to include that instead of
conio.h... system ("pause") and getch are both non portable
methods too, whereas the getchar approach is, and its all in
stdio.h as requested.