I am just starting to learn C++ and am working on some DOS console apps for the class I am taking. I would like to use the disp.h functions to handle drawing and writing to the console, but I've run into a problem with type casting that I just don't know enough to solve, or even ask the right question.

I understand that I need to do some sort of type conversion here, from int to string, but I can't figure out how to do this in the context of the disp.h functions...

Here's the error:
D:\DM\work>dmc problem.cpp
disp_move(5,0); disp_puts("thingInt is "); disp_printf(thingInt);
^
problem.cpp(21) : Error: need explicit cast for function parameter 1 to get
from: int
to  : char *
--- errorlevel 1

Here's code that generates the error:

// A really simple problem... I hope
//Library Includes
#include "iostream.h"
#include "iomanip.h"
#include "disp.h"

//Main Body
int main()
{
// Variable Declarations
int thingInt = 0;		// an Integer

// Open Display, Clear the screen
disp_open();
disp_move(0,0);	// move cursor to upper left corner
disp_eeop();	// clear screen

cout << "Enter a value for thingInt: ";
cin >> thingInt;
// This is where the error is generated...
disp_move(5,0); disp_puts("thingInt is "); disp_printf(thingInt);

// Clean Up
disp_close();
return 0;
}

Jaimie

"Jaimie" <Jaimie_member@pathlink.com> wrote in message news:d9nt58$q21$1@digitaldaemon.com...
> disp_move(5,0); disp_puts("thingInt is "); disp_printf(thingInt);

disp_printf's first argument is a char*, not an int.

Jaimie escreveu:
> I am just starting to learn C++ and am working on some DOS console apps for the
> class I am taking. I would like to use the disp.h functions to handle drawing
> and writing to the console, but I've run into a problem with type casting that I
> just don't know enough to solve, or even ask the right question.
> 
> I understand that I need to do some sort of type conversion here, from int to
> string, but I can't figure out how to do this in the context of the disp.h
> functions...
> 
> Here's the error:
> D:\DM\work>dmc problem.cpp
> disp_move(5,0); disp_puts("thingInt is "); disp_printf(thingInt);	
> ^
> problem.cpp(21) : Error: need explicit cast for function parameter 1 to get
> from: int
> to  : char *
> --- errorlevel 1
Jaimie,

The disp_printf function is supposed to work in a similar fashion as the vanilla stdio printf. Rather than doing the above, try this (caveat: not tested):

disp_move(5,0); disp_printf("thingInt is %d", thingInt);

Also, I'm not sure if the mixing of cout and disp_* functions will coordinate well. In dubio, change the cout call to a disp_printf one.

You _may_ have to manage the flushing of buffers in order to see the printouts in the way you want.

HTH

--
Cesar Rabak