Code:

#include <stdio.h>
int main()
{
    char a[]="Hello";
    while (*a!='\0')
    {
         printf("%c", *a);
         a++;
    }
    return 0;
}

Why the error ?

a is an array, hence it cannot be modified in itself. You should create a pointer to char to point to the first character of a.

Question 6.2

Thank you.
PS:In gcc no conio.h, what is the alternative?

What are you trying to do that required something in conio.h?

getch(), putch(), etc

Why do you need getch(), putch(), etc?

Use getchar() and putchar() respectevily.

laserlight
For doing exercise in my book.
qny
aware of that, qny

Originally Posted by justine

For doing exercise in my book.

In that case, just substitute with the standard library near-equivalents. They certainly don't do the exact same thing, but for the purposes of learning, they will be as adequate. This way, your code will be more portable, what you learn will have somewhat greater applicability, and if you post your code here, people will more likely be able to quickly get up to speed with it.

I was checking the action of each function:

Code:

#include <stdio.h>
using namespace stdin;
int main()
{
    char ch;
    printf("Press ant key to continue\n");
    getch();
    printf("Press ant key to continue\n");
    ch=getche();
    printf("Press ant key to continue\n");
    getchar();
    printf("Continue Y/N");
    fgetchar();
    return 0;
}

I heard about "using namespace std" something like that?

Well, do you really need this "press any key to continue" feature?

Originally Posted by justine

I heard about "using namespace std" something like that?

That is C++.

If you can't test the functions, you can read about them and work out what they are supposed to do.

The MSDN site is probably best for that

But whilst reading them, remember that in this day and age they are very uncommon.

Okey.