Input not cleared.
- by SoulBeaver
As the question says, for some reason my program is not flushing the input or using my variables in ways that I cannot identify at the moment. This is for a homework project that I've gone beyond what I had to do for it, now I just want the program to actually work :P
Details to make the finding easier:
The program executes flawlessly on the first run through. All throws work, only the proper values( n 0 ) are accepted and turned into binary.
As soon as I enter my terminate input, the program goes into a loop and only asks for the termiante again like so:
When I run this program on Netbeans on my Linux Laptop, the program crashes after I input the terminate value. On Visual C++ on Windows it goes into the loop like just described.
In the code I have tried to clear every stream and initialze every variable new as the program restarts, but to no avail. I just can't see my mistake.
I believe the error to lie in either the main function:
int main( void )
{
vector<int> store;
int terminate = 1;
do
{
int num = 0;
string input = "";
if( cin.fail() )
{
cin.clear();
cin.ignore( numeric_limits<streamsize>::max(), '\n' );
}
cout << "Please enter a natural number." << endl;
readLine( input, num );
cout << "\nThank you. Number is being processed..." << endl;
workNum( num, store );
line;
cout << "Go again? 0 to terminate." << endl;
cin >> terminate // No checking yet, just want it to work!
cin.clear();
}while( terminate );
cin.get();
return 0;
}
or in the function that reads the number:
void readLine( string &input, int &num )
{
int buf = 1;
stringstream ss;
vec_sz size;
if( ss.fail() )
{
ss.clear();
ss.ignore( numeric_limits<streamsize>::max(), '\n' );
}
if( getline( cin, input ) )
{
size = input.size();
for( int loop = 0; loop < size; ++loop )
if( isalpha( input[loop] ) )
throw domain_error( "Invalid Input." );
ss << input;
ss >> buf;
if( buf <= 0 )
throw domain_error( "Invalid Input." );
num = buf;
ss.clear();
}
}
