Re: [Dev-C++] line skip

[Paul I. <pi...@ot...>]

Quoting Noorez Kassam <coo...@ho...>:

> The marked program line in the loop is skipping on the first time aroun=
d. It
>=20
> is the cin.getline() function.
>=20

Where?=20


btw, noticed the line:

while(ask !=3D 'y' || ask !=3D 'Y' || ask !=3D 'n' || ask !=3D 'N')

this will always be true. (If ask =3D=3D 'y' then ask !=3D 'Y' ...)


> #include <iostream>
> #include <cstdlib>
> #include <direct.h>
> using namespace std;
>=20
> int system(bool cls);
> int main()
> {
>   cout << "Easy to use dos-prompt!" << endl;
>   cout << "\nTo switch dirves use this: drvswitch\n";
>   cout << "\nTo quit you can use any one of the following commands: \n"
>        << "quit, bye, exit\n";
>=20
>   char ask;
>=20
>   do
>   {
>     cout << "\nWould you like to enter the system? [Y\\N]";
>     cin >> ask;
>=20
>     if(ask =3D=3D 'y' || ask =3D=3D 'Y')
>     {//main if
>=20
>      cout << "\nYou can also have the program Clear Screen automaticly =
after
>=20
> each command.\n";
>      cout << "Is this Ok [Y\\N] ";
>=20
>      char cls;
>      bool cLs;
>      cin >> cls;
>      if(cls =3D=3D 'y' || cls =3D=3D 'Y')
>      {
>        cLs =3D TRUE;
>      }
>=20
>      else if(cls =3D=3D 'n' || cls =3D=3D 'N')
>      {
>        cLs =3D FALSE;
>      }
>=20
>      else
>      {
>        cout << "What...";
>        cout << "Default is set. No Clear Screen!\n";
>        cLs =3D FALSE;
>      }
>      //return to main test
>      system(cLs);
>      system("pause");
>      return 0;
>     }
>=20
>     else if(ask =3D=3D 'n' || ask =3D=3D 'N')
>     {
>       cout << "Bye!" << endl;
>       system("pause");
>       return 0;
>     }
>=20
>     else
>     {
>       cout << "What....\n" << endl;
>     }
>=20
>   }while(ask !=3D 'y' || ask !=3D 'Y' || ask !=3D 'n' || ask !=3D 'N');
>=20
>   return 0;
> }
>=20
> //define the system function
> int system(bool cls)
> {
>=20
>   drvswitch:
>=20
>   char drv[8];
>   cout << "\nEnter the name of the drive you want to go to: ";
>   cin >> drv;
>   strcat(drv,":");
>   chdir(drv);
>=20
>   cout << "Now in drive " << drv << "\\" << endl;
>   cout << "You may type in commands" << endl;
>   system("pause");
>   strcat(drv,"\\>");
>=20
>   char coms[123];
>=20
>   while(1)
>   {
>     cout << drv;
>     cin.getline(coms,124); //this is skipping
>=20
>     if( strcmp(coms,"exit")=3D=3D0 || strcmp(coms,"bye")=3D=3D0 ||=20
> strcmp(coms,"quit")=3D=3D0 )
>     {
>       return 0;
>     }
>=20
>     if(strcmp(coms,"drvswitch")=3D=3D0)
>     {
>        goto drvswitch;
>     }
>=20
>     system(coms);
>=20
>     if(cls =3D=3D TRUE)
>     {
>       system("pause");
>       system("cls");
>     }
>=20
>     cout << endl;
>   }//while
> }
>=20
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>=20
>=20
>=20
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>=20
>=20