Added Lab07 Files

++ Lab 7 Files

Signed-off-by: cdez <cdez@cdezselfhosted.pw>

Lab07/Lab_07.c

@@ -0,0 +1,120 @@
+// header files
+#include "StandardConstants.h"
+#include "Console_IO_Utility.h"
+#include "File_Input_Utility.h"
+#include "File_Output_Utility.h"
+
+// function prototypes
+
+/*
+Name: calculateNetRevenue
+Process: opens input file calculates net revenue based on expenses and
+         gross revenue; uses total years to iterate over expenses file;
+         makes sure expenses are negative number before adding/subtracting
+Function input/parameters: file name (const char *), grossRevenue and totalYears
+Function output/parameters: none
+Function output/returned: net revenue (grossRevenue - expenses)
+Function input/keyboard: none
+Device output/file: none
+Dependencies: File Output Utility tools
+*/
+double calculateNetRevenue( const char *expensesDataFile,
+                            double grossRevenue,
+                            int totalYears);
+
+
+// main program
+int main()
+    {
+     // initialize variables, functions
+        char expensesDataFile[ STD_STR_LEN ];
+        double grossRevenue, netRevenue;
+        int totalYears;
+
+    // show title
+        // function: printf
+    printf( "\nSimple Accountant Script\n" );
+    printf( "==========================\n\n" );
+
+    // get input
+    grossRevenue = promptForDouble("Enter gross revenue: ");
+    totalYears = promptForInteger("Enter number of years: ");
+    //printf("Enter file name containing expenses information: ");
+    //scanf("%c\n", expensesDataFile);
+    promptForString("Enter file name containing expenses information: ",
+                                                              expensesDataFile);
+
+
+    // processing
+    netRevenue =
+                calculateNetRevenue(expensesDataFile, grossRevenue, totalYears);
+
+    // display results
+    printf("\nThe total revenue in %d years is: $%.2f.\n\n",
+                                                        totalYears, netRevenue);
+
+    // end program
+    printf("End Program\n");
+    return 0;
+
+}
+
+
+// supporting functions
+double calculateNetRevenue( const char *expensesDataFile,
+                            double grossRevenue,
+                            int totalYears)
+   {
+    // initialize variables
+    int iterateNumber;
+    int forCounter;
+    double saveTotalNumberExpenses;
+    double capturedOutput;
+    iterateNumber = 0;
+    saveTotalNumberExpenses = 0;
+    capturedOutput = 0;
+
+    // get input
+        // input passed in from function parameters
+
+    // do calculations
+        // functions: openInputFile, readDoubleFromFile, checkForInputFileOpen,
+        // checkForEndOfInputFile, closeInputFile
+    // open the file
+    openInputFile(expensesDataFile);
+
+    // use a loop to iterate over the file given number of years.
+    for(forCounter = iterateNumber; forCounter < totalYears; forCounter++)
+    {
+    // capture output number
+      capturedOutput = readDoubleFromFile();
+
+    // check if captured output number is negative
+      if(capturedOutput < 0)
+      {
+        // total the number of expenses
+        saveTotalNumberExpenses = saveTotalNumberExpenses - capturedOutput;
+      }
+      else
+      {
+        // if the data is positive, subtract it twice.
+        capturedOutput = capturedOutput - capturedOutput - capturedOutput;
+        saveTotalNumberExpenses = saveTotalNumberExpenses - capturedOutput;
+      }
+
+    }
+    // close input file
+    closeInputFile(expensesDataFile);
+
+
+
+    // display results
+        // no displayed output, returns only.
+
+    // return results
+        // returns grossRevenue - saveTotalNumberExpenses
+    return grossRevenue - saveTotalNumberExpenses;
+
+    // end function
+
+   }