Background?

The purpose of this assignment is to practice dealing with string data. The goal is to work with data declared as char * and also as string. Somehow, I think you'll like working with string much better. Please recall that string is officially known as std:: string.

Sudoku Row Checker?

Sudoku is a logic-based number placement puzzle. The objective is to fill a 99 grid so that each column, each row, and each of the nine 33 boxes (also called blocks or regions) contains the digits from 1 to 9 only one time each. For those of you not familiar with this game, you can learn more about it with:

https://en.wikipedia.org/wiki/Sudoku.

The Sudoku Row Checker class is can be used to validate a string of information. Using string operations, it should verify that each number 1 to 9 is used only one time.

Following the class specifications shown below, implement the Sudoku Row Checker class. Implement a suitable testing suite asides from the ones already provided that proves your calculations are correct. You may choose to create any number of additional methods, but you are required to implement all of the public methods shown below.

SudokuRowChecker( );

void setData( const char * s );

void setDataString( std::string s );

void clear();

bool isValid( ) const;

string sudokuRow;

Here is the given code:

main.cpp

tests.h

/** ------------------- **/ /** DO NOT MODIFY START **/ /** ------------------- **/ #include #include "sudoku_row_checker.h" #include "tests.h" using namespace std; void personalTests(); int main() { SudokuRowChecker checker; string input="", cont="y"; while (cont == "y"){ cout << "1) setData 2) setDataString 3) unittests 4) personalTests "; cin >> input; switch(stoi(input)){ case 1: cout << "checker <--- "; cin >> input; checker.setData(input.c_str()); checkAndClear(checker); break; case 2: cout << "checker <--- "; cin >> input; checker.setDataString(input); checkAndClear(checker); break; case 3: cout << " 1) setData 2) setDataString 3) clear "; cin >> input; unittests(stoi(input)); break; case 4: personalTests(); break; } cout << "Continue(y/n)? "; cin >> cont; } } /** ----------------- **/ /** DO NOT MODIFY END **/ /** ----------------- **/ void personalTests(){ cout << "Running My Tests... "; }

#include #include "sudoku_row_checker.h" #include "string.h" using namespace std; void checkAndClear(SudokuRowChecker c){ if (c.isValid()) { cout << "valid "; } else { cout << "invalid "; } c.clear(); } void checkEmptyChar(){ cout << "UnitTest/setDataString/Emptystring: "; SudokuRowChecker c1 = SudokuRowChecker(); char s[] = ""; c1.setData(s); checkAndClear(c1); } void checkEmptyString(){ cout << "UnitTest/setDataString/Emptystring: "; SudokuRowChecker c1 = SudokuRowChecker(); c1.setDataString(""); checkAndClear(c1); } void checkClear(){ cout << "UnitTest/clear/true: "; SudokuRowChecker c = SudokuRowChecker(); c.setDataString("123456789"); checkAndClear(c); cout << "UnitTest/clear/true + clear: "; c.setDataString("123456789"); c.clear(); checkAndClear(c); } void unittests(int funcNum){ switch(funcNum){ case 1: { checkEmptyChar(); break; } case 2: { checkEmptyString(); break; } case 3: { checkClear(); break; } } }