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Converting from C++ to C

 
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Converting from C++ to C
mchay
3 Feb, 2008 - 12:19 PM
Post #1

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Posts: 12
I've made a box in C++ code, that I want to use in a little C application I'm planning. How can I convert it to function? My Turbo C++ compiler doesnt seem to have the iostream.h. What is the best way to tackle my problem?

CODE

#include <iostream.h>
#include <conio.h>

void ramme(int a, int b, int c, int d)

{
    int resetA = a, resetB = b;

    /* sides */
    textcolor(YELLOW);
        textbackground(BLUE);
    while (a<c)
    {
        gotoxy(a,b);
        cprintf("%c", 205);
        gotoxy(a,d);
        cprintf("%c", 205);
        a++;
    }
    a = resetA;

    while (b<d)
    {
        gotoxy(a,b);
        cprintf("%c", 186);
        gotoxy(c,b);
        cprintf("%c", 186);
        b++;
    }
    b = resetB;

    /* corners */
    gotoxy(c,b);
    cprintf("%c", 187);
    gotoxy(a,b);
    cprintf("%c", 201);
    gotoxy(c,d);
    cprintf("%c", 188);
    gotoxy(a,d);
    cprintf("%c", 200);

}

int main()

{

ramme(30,10,50,20);
return 0;

}
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Bench
RE: Converting From C++ To C
3 Feb, 2008 - 12:31 PM
Post #2

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You haven't actually used any C++ in your program at all. Whatever library you've used for cprintf, gotoxy, textcolor, etc, will probably all work on your C compiler too, assuming they're both by the same vendor (none of it is standard)
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mchay
RE: Converting From C++ To C
3 Feb, 2008 - 12:38 PM
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I am getting Declaration syntax errors (IOSTREAM.H) that I'm not getting if I compile it as .CPP.
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GWatt
RE: Converting From C++ To C
3 Feb, 2008 - 12:45 PM
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Well, you can use <stdio.h>. Also, anything that works in c will also work in c++, objective c, or objective c++. So, i would just leave it using whatever c++ code you are using, and call the c functions as needed.
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Bench
RE: Converting From C++ To C
3 Feb, 2008 - 12:51 PM
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QUOTE(mchay @ 3 Feb, 2008 - 08:38 PM) *

I am getting Declaration syntax errors (IOSTREAM.H) that I'm not getting if I compile it as .CPP.

Then remove that header. You haven't actually used anything from iostream in your program anyway.

In C++ it should be called <iostream> without the .h extension, though if you're running a very old compiler, it may not support standard C++. C has no header under the name <iostream> or <iostream.h>
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mchay
RE: Converting From C++ To C
3 Feb, 2008 - 01:08 PM
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D'oh. That worked great. As you probably can hear I'm pretty new to programming :-). Thanks for the help.
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Cyborg Ninja
RE: Converting From C++ To C
5 Feb, 2008 - 09:16 AM
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In high school (only a few years ago) we used a REALLY old compiler. My God. I couldn't even tell you the name. We had to use <iostream.h> instead of the standard, too. I don't know we didn't just use Visual C++. I guess our teacher didn't know how to use it. She taught Java when she admitted that she didn't even know how to program in it.
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no2pencil
RE: Converting From C++ To C
5 Feb, 2008 - 10:11 AM
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QUOTE(Cyborg Ninja @ 5 Feb, 2008 - 10:16 AM) *

In high school (only a few years ago) we used a REALLY old compiler. My God. I couldn't even tell you the name. We had to use <iostream.h> instead of the standard, too. I don't know we didn't just use Visual C++. I guess our teacher didn't know how to use it. She taught Java when she admitted that she didn't even know how to program in it.

At least your school had programming classes. In my highschool we had typing class on Apple II's & Commodores.
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