Create truth-table-generator.cpp

Programs/truth-table-generator.cpp

@@ -0,0 +1,117 @@
+#include <iostream>
+#include <fstream>
+#include <iomanip>
+
+using namespace std;
+
+bool expression( int A, int B, int C, int D )
+{
+    // EXAMPLES:
+    // return ( A || !B );
+    // return ( A || !B ) && ( C || D );
+    // return ( A || !B ) && ( C || D );
+    // return ( A || !B ) && !( C || ( A && D ) );
+
+    return /* INSERT YOUR EXPRESSION HERE */;
+}
+
+int main()
+{
+    int x;
+    int counter = 0;
+
+    fstream file;
+
+    cout << "How many variables are there in your expression? (Max 4)\n";
+    cin >> x;
+
+    file.open("table.txt", std::ios::out);
+
+    if( x == 1 )
+    {
+        file << setw(3) << counter << " | A | S\n";
+        for( int A = 0; A < 2; A++ )
+        {
+            counter++;
+            file << setw(3) << counter << " | " << A << " | ";
+
+            if( expression( A, 0, 0, 0 ) )
+                file << "1";
+            else
+                file << "0";
+
+            file << endl;
+        }
+    }
+
+    if( x == 2 )
+    {
+        file << setw(3) << counter << " | A B | S\n";
+        for( int A = 0; A < 2; A++ )
+        {
+            for( int B = 0; B < 2; B++ )
+            {
+                counter++;
+                file << setw(3) << counter << " | " << A << " " << B << " | ";
+
+                if( expression( A, B, 0, 0 ) )
+                    file << "1";
+                else
+                    file << "0";
+
+                file << endl;
+            }
+        }
+    }
+
+    if( x == 3 )
+    {
+        file << setw(3) << counter << " | A B C | S\n";
+        for( int A = 0; A < 2; A++ )
+        {
+            for( int B = 0; B < 2; B++ )
+            {
+                for( int C = 0; C < 2; C++ )
+                {
+                    counter++;
+                    file << setw(3) << counter << " | " << A << " " << B << " " << C << " | ";
+
+                    if( expression( A, B, C, 0 ) )
+                        file << "1";
+                    else
+                        file << "0";
+
+                    file << endl;
+                }
+            }
+        }
+    }
+
+    if( x == 4 )
+    {
+        file << setw(3) << counter << " | A B C D | S\n";
+        for( int A = 0; A < 2; A++ )
+        {
+            for( int B = 0; B < 2; B++ )
+            {
+                for( int C = 0; C < 2; C++ )
+                {
+                    for( int D = 0; D < 2; D++ )
+                    {
+                        counter++;
+                        file << setw(3) << counter << " | " << A << " " << B << " " << C << " " << D << " | ";
+
+                        if( expression( A, B, C, D ) )
+                            file << "1";
+                        else
+                            file << "0";
+
+                        file << endl;
+                    }
+                }
+            }
+        }
+    }
+
+    return 0;
+}