[C++/PASCAL] Lettura del buffer di tastiera

[moguri90]

non ho detto che non mi va bene, pero fa sempre bene avere a portata di mano piu soluzioni per uno stesso problema. Era una cosa in piu per allargare i miei orizzonti, tutto qui.
cmq mi posteresti il codice che ti ho chiesto per piacere??

[oregon]

Non mi sembra una buona soluzione. L'ultimo codice che ti ho postato mi sembra il migliore e il piu' semplice ...

[mondobimbi]

io in C la scriverei così

#if !defined(linux)
#include <conio.h> /* kbhit(), getch() */
#else
#include <sys/time.h> /* struct timeval, select() */
/* ICANON, ECHO, TCSANOW, struct termios */
#include <termios.h> /* tcgetattr(), tcsetattr() */
#include <stdlib.h> /* atexit(), exit() */
#include <unistd.h> /* read() */
#include <stdio.h> /* printf() */

static struct termios g_old_kbd_mode;
/*****************************************************************************
*****************************************************************************/
static void cooked(void)
{
    tcsetattr(0, TCSANOW, &g_old_kbd_mode);
}
/*****************************************************************************
*****************************************************************************/
static void raw(void)
{
    static char init;
/**/
    struct termios new_kbd_mode;

    if(init)
        return;
/* put keyboard (stdin, actually) in raw, unbuffered mode */
    tcgetattr(0, &g_old_kbd_mode);
    memcpy(&new_kbd_mode, &g_old_kbd_mode, sizeof(struct termios));
    new_kbd_mode.c_lflag &= ~(ICANON | ECHO);
    new_kbd_mode.c_cc[VTIME] = 0;
    new_kbd_mode.c_cc[VMIN] = 1;
    tcsetattr(0, TCSANOW, &new_kbd_mode);
/* when we exit, go back to normal, "cooked" mode */
    atexit(cooked);

    init = 1;
}
/*****************************************************************************
*****************************************************************************/
static int kbhit(void)
{
    struct timeval timeout;
    fd_set read_handles;
    int status;

    raw();
/* check stdin (fd 0) for activity */
    FD_ZERO(&read_handles);
    FD_SET(0, &read_handles);
    timeout.tv_sec = timeout.tv_usec = 0;
    status = select(0 + 1, &read_handles, NULL, NULL, &timeout);
    if(status < 0)
    {
        printf("select() failed in kbhit()\n");
        exit(1);
    }
    return status;
}
/*****************************************************************************
*****************************************************************************/
static int getch(void)
{
    unsigned char temp;

    raw();
/* stdin = fd 0 */
    if(read(0, &temp, 1) != 1)
        return 0;
    return temp;
}
#endif

int main()
{

    while (!kbhit());
    int c=getch();
    printf("%c\n", c);

    return 0;
} 

ciao
sergio