Re: [Dev-C++] switch statement

[Per W. <pw...@ia...>]

Don't declare variables within the switch statement without using braces,
to create a separate namespace for the variable!

switch (n) {
    case 0:
        {
            int local_variable;
            break;
        }
    default:
        // because of braces, the local_variable isn't visible anymore.
}

/Per W

On Fri, 28 May 2004, Noorez Kassam wrote:

> I am having a problem with the case statement with both the switch
> statements in the program.
> They are both exactly the same really.... I marked the lines with errors
>
> The compile errors are
> [Warning] Infunction 'int main(int, char**)
> Line 57/110  Jump to case label
> Line 50/103 crosses initialization of 'char intern[16]';
>
> #include <iostream>
> #include <cstdlib>
> #include <string>
> using namespace std;
>
> int main(int args, char* pszArgs[])//there needs to be args for this to work
> {
>   if(strcmp(pszArgs[1],"-nt")== 0)
>   {
>     system("cls");//start with a clear screen
>     //explain what the heck all this does
>     cout << "Welcome to the easy program opener!\n";
>     cout << "Hear is a list of programs that can be easy opened\n\n";
>     cout << "To quit enter 0 or nothing for a program choice\n";
>
>     cout << "1. Microsoft Office\n";
>     cout << "2. Microsoft Paint\n";
>     cout << "3. Calculator\n";
>     cout << "4. Internet Explorer\n";
>
>     int choice;
>     while(1)
>     {//while
>
>       choice = 0;
>       cout << "\nEnter the number of your choice: ";
>       cin >> choice;
>       switch(choice)
>       {//switch
>         case 0:
>         cout << "Exiting easy opener...\n";
>         //Sleep(1000);
>         return 0;
>         break;
>
>         case 1:
>         system("start winword");
>         break;
>
>         case 2:
>         system("mspaint");
>         break;
>
>         case 3:
>         system("calc");
>         break;
>
>         case 4:
>         char site[123];
>         char intern[] ="start iexplore "; /*50*/
>         cout << "Enter site: ";
>         cin >> site;
>         strcat(intern,site);
>         system(intern);
>         break;
>
>         default://the choice wasn't a valid one if we are at default /*line
> 57*/
>          cout << "Not a valid choice\n";
>       }//switch
>
>     }//end while
>   }//done defining nt operating system
>
>   if(strcmp(pszArgs[1],"-me")==0)
>   {
>      system("cls");
>     cout << "Welcome to the easy program opener!\n";
>     cout << "Hear is a list of programs that can be easy opened\n\n";
>     cout << "To quit enter 0 or nothing for a program choice\n";
>
>     cout << "1. Microsoft Office\n";
>     cout << "2. Microsoft Paint\n";
>     cout << "3. Calculator\n";
>     cout << "4. Internet Explorer\n";
>
>     int choice;
>     while(1)
>     {
>       cout << endl << "Enter choice: ";
>       cin >> choice;
>       switch(choice)
>       {
>         case 0:
>         cout << "Exiting easy opener...\n";
>         //Sleep(1000);
>         return 0;
>         break;
>
>         case 1:
>         system("start winword");
>         break;
>
>         case 2:
>         system("pbrush");
>         break;
>
>         case 3:
>         system("calc");
>         break;
>
>         case 4:
>         char site[123];
>         char intern[] ="start iexplore "; /*103*/
>         cout << "Enter site: ";
>         cin >> site;
>         strcat(intern,site);
>         system(intern);
>         break;
>
>         default: /*line 110*/
>          cout << "Not a valid choice\n";
>      }//end switch
>
>     }//end while
>
>   }//end defining me operating system
>
>   if(strcmp(pszArgs[1],NULL)==0 )//opps! nothing found!
>   {
>      cout << "This program requries the use of Args\n"
>           << "Use the name of your operating system\n"
>           << "eg... -me for Millenium Edition\n\n";
>
>      cout << "Open a command prompt window and type pszArgs[0] -<short name
> of system>";
>      cout << "Just don't use the << ";
>
>      system("pause");
>      return 1;
>   }
>
>   return 0;//exit program
> }
>
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