SWITCH() ....CASE and putch() problem.

[mynicks]

(i run windows 32bit, code::blocks IDE as is,i use the default compiler that my IDE has)

For both questions 1) and 2) i fail to understand what is going on. I do not expected to see 97 only a , (only here i wanted 97 to be seen: 'you typed: 97' nowhere else). Can someone help me to understand better the mechanism? What it does? Why i see 97 and why 'a' is <<travelling>>. :-(


1) I get unwanted results for case 'a' in my command window.I see this:

enter char: ( to test the program i typed the character a)
you typed: 97

aaaaaaa ---
a97. <-------Here is my problem.
I expected to see only a. The putch(i) command should give me only character a.

(i know what i did, i did it on purpose: i want to use 'int i;' not 'char i;' so that 'i=getch();' the character i type will convert to an integer and saved inside my 'i' variable.)

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

using namespace std;

 int main(int argc, char *argv[])
{
    int i;
    cout << "enter char :";
    i=getch();
    cout << endl;
    switch(i)
    {
        case 'a':
            cout << "\naaaaaaa --- \n";
            cout << putch(i); break;
        default:
            cout << "\n444444\n";
    }
    putch('\n');
    system("pause");
}

============================================================================
2) If i change the code a little bit inside the case 'a' :

cout << "\naaaaaaa --- \n" << putch(i); break;

Now i get this unusual result(!):

enter char: ( to test the program i typed the character a)
you typed: 97

a
aaaaaaa ---
97

Now 'a' has travelled to a different position! :-(


I know from what i have read so far that this is what putch(i) should do: show me the character that is saved in the variable i. I know that inside my computer 'char' data types are saved as integer numbers....

(when i type this : char i='a'; I know that inside my computer 'a' will be saved in a memory address i(whatever is the hex number for that i) silently as an integer int data type, which is the ASCII ID 97. 'a' has ASCII ID 97.

[iQChange]

<stdlib.h> and <conio.h> are deprecated. I recommend you to use C++ io manipulators instead Windows. Choose one and make an entire program this way ^^.

[bugbyte]

So is what you want a program, that shows the int representation/ASCII code of each char?

[mynicks]

dear bugbyte,

The purpose of this thread is these questions:
"Can someone help me to understand better the mechanism? What it does? Why i see 97 and why 'a' is <<travelling>>. "

nothing else. ty.

[iQChange]

Try this (I'm with no computer):

#include <iostream>
#include <conio.h>
int main()
{
    std::cout << "Input a char.: ";
    char i = getch();
    std::cout << ((i == 'a')? ("A: "):("(Try A next time:)" )) << ((int)i);
    return 0;
}

This may do it.