/*  wait.h  by K.Tsuru  */
#ifndef WAIT_H
#define WAIT_H
#define CONIO_EXIST 0   // Change '1' if your compiler has "conio.h".

#include <iostream>
#include <stdlib.h>
#include <stdio.h>
using namespace std;    // ver. 2.30

#if     CONIO_EXIST

/***************************
Non ANSI functions are used.
It needs "conio.h"
*****************************/
#include <conio.h>

inline void ErrorPuts(const char* msg){
    fprintf(stderr, "%s\n", msg);
}
inline void ErrorPut(const char* msg){
    fprintf(stderr, "%s", msg);
}
inline void Wait(const char* msg = NULL){
    if(msg != NULL) ErrorPuts(msg);
    ErrorPuts("Press Esc key to abort / another to continue.");
    if(kbhit()) getch();
    if( getch() == 0x1b ){  // conio.h
        ErrorPuts("Aborted.");
        exit(EXIT_FAILURE);
    }
}
inline void Ending(){
    ErrorPuts("Program ended. Hit any key.");
    if(kbhit()) getch();
    getch();
}
#else   //CONIO_EXIST = 0
/********************************
 ANSI C version
 Only ANSI functions are used.
*********************************/
inline void ErrorPuts(const char* const msg){ cerr << msg << endl; }
inline void ErrorPut(const char* const msg) { cerr << msg; }
inline void Wait(const char* msg = NULL){
    if(msg != NULL) ErrorPuts(msg);
    ErrorPuts("Press 'a' and <Enter> key to abort / <Enter> key to continue.");
    if(getchar() == 'a'){
        ErrorPuts("Aborted.");
        exit(EXIT_FAILURE);
    }
}
inline void Wait(const string& msg){
    Wait(msg.c_str());
}
inline void Ending(){
    ErrorPuts("Program ended. Hit any key.");
    getchar();
}
#endif  // CONIO_EXIST
#endif  // WAIT_H