//-------------------------------------------------------------------- // // Laboratory 3, In-lab Exercise 1 test3dna.cpp // // Test program for the countbases function // //--------------------------------------------------------------------

// Reads a DNA sequence from the keyboard, calls function countBases // countBases (which uses a list to represent a DNA sequence), and // outputs the number of times that each base (A, G, C and T) occurs // in the sequence.

#include #include "ListArray.cpp"

using namespace std;

//-------------------------------------------------------------------- // // Function prototype //

void countBases ( List &dnaSequence, int &aCount, int &cCount, int &tCount, int &gCount );

//--------------------------------------------------------------------

int main () { List dnaSequence(25); // DNA sequence (25 bases max.) char base; // DNA base int aCount, // Number of A's in the sequence cCount, // Number of C's in the sequence tCount, // Number of T's in the sequence gCount; // Number of G's in the sequence

// Read the DNA sequence from the keyboard.

cout << endl << "Enter a DNA sequence: "; cin.get(base); while ( base != ' ' ) { dnaSequence.insert(base); cin.get(base); }

// Display the sequence.

cout << "Sequence: ";

if( dnaSequence.isEmpty() ) cout << "list is empty" << endl; else { dnaSequence.gotoBeginning(); do { cout << dnaSequence.getCursor() << " "; } while ( dnaSequence.gotoNext() ); cout << endl; }

// Count the number of times that each base occurs.

countBases(dnaSequence,aCount,cCount,tCount,gCount);

// Output the totals.

cout << "Number of A's : " << aCount << endl; cout << "Number of C's : " << cCount << endl; cout << "Number of T's : " << tCount << endl; cout << "Number of G's : " << gCount << endl;

}

//-------------------------------------------------------------------- // // Insert your countBases function below. //