void prompt(void) {
student students[STUDENT_MAX];
int i;
unsigned short count = 0;
while (count < STUDENT_MAX && registerStudent(&students[count])) { count++; }
sortStudents(students, count);
for (i = 0; i < count; i++) {
printStudent(students[i]);
}
}
int main(int argc, char * argv[])
{
//checks to make sure that there are 2 arguments - one for input and output
inputCheck(argv);
//Get the input file name...
char *inputFileName = *(argv + 1);
char *outputFileName = *(argv + 2);
//Find out how many students are on the input file...
int numberOfStudents = getRecordCount(inputFileName);
//Create the number of students depending on the record count...
Student listOfStudents[numberOfStudents];
createStudents(listOfStudents, numberOfStudents);
//Read the data of the input file...
FILE *myFile = openFile(inputFileName);
//Fill out all the student's info...
fillStudentRecord(myFile, listOfStudents, numberOfStudents);
//sortStudents using the array of student struct
sortStudents(listOfStudents, numberOfStudents);
//Calculate each student's GPA and recorded in the structure...
getGPA(listOfStudents, numberOfStudents);
//Calculate each student's Letter Grade and record in the structure...
getGrade(listOfStudents, numberOfStudents);
//Create ClassGrade structure pointer...
ClassGrade *classGrade;
classGrade = (ClassGrade *)malloc((sizeof classGrade) * 20);
//Call functions to calculate the scores...
getScoreAverage(listOfStudents, classGrade, numberOfStudents);
getMinScore(listOfStudents, classGrade, numberOfStudents);
getMaxScore(listOfStudents, classGrade, numberOfStudents);
//Generate and output file with the student grade information
generateOutputFile(outputFileName, inputFileName, listOfStudents, numberOfStudents);
//Print out student's info...
printAllStudents(listOfStudents, classGrade, numberOfStudents, inputFileName, outputFileName);
return 0;
}
int main(int argc, char *argv[]){
char inputFileName[100], outputFileName[100], c;
FILE *inputFile, *outputFile = stdout;//Output is stdout by default
int i, numStudents = 1, errorFlag = 0;
if(argc == 1)
{
//Try to open a file from stdin.
//If it doesn't work, keep trying or q to quit.
do{
printf("Enter a file to read information from (or q to exit):");
scanf("%s", inputFileName);
if(strcmp(inputFileName, "q") == 0){
printf("Terminating program...");
return 0;
}
else if((inputFile = fopen(inputFileName, "r")) == NULL)
printf("Error: file not found\n");
}while(inputFile == NULL);
}
else if(argc == 2)
{
//Only the input file was given
strcpy(inputFileName, argv[1]);
if((inputFile = fopen(inputFileName, "r")) == NULL)
{
printf("ERROR: Invalid file name");
return 1;
}
}
else if(argc == 3)
{
//Both input and output files were given
strcpy(inputFileName, argv[1]);
if((inputFile = fopen(inputFileName, "r")) == NULL)
{
printf("ERROR: Invalid input file name");
return 1;
}
strcpy(outputFileName, argv[2]);
if((outputFile = fopen(outputFileName, "w")) == NULL)
{
printf("ERROR: Invalid output file name");
return 1;
}
}
//Find how many students are here
numStudents = getNumStudents(inputFile);
//Create the array of students
Student students[numStudents];
//Code to scan info in
for(i = 0; i < numStudents; i++)
{
//1301,107515018,"Boatswain","Michael R.",CSE, 230,="R01"
if(fscanf(inputFile, "%d,", &(students[i].term)) != 1)
errorFlag = 1;
if(fscanf(inputFile, "%d,", &(students[i].id)) != 1)
errorFlag = 1;
if(fscanf(inputFile, "\"%[^,\"]\",", students[i].lastName) != 1)
errorFlag = 1;
if(fscanf(inputFile, "\"%[^,\"]\",", students[i].firstName) != 1)
errorFlag = 1;
if(fscanf(inputFile, "%[^,],", students[i].subject) != 1)
errorFlag = 1;
if(fscanf(inputFile, "%d", &(students[i].catalogNumber)) != 1)
errorFlag = 1;
fscanf(inputFile, "%*[^=]=");
if(fscanf(inputFile, "\"%[^\"]", students[i].section) != 1)
errorFlag = 1;
fscanf(inputFile, "%*[^\n]");//Reads out to the end of the line to avoid errors
if(errorFlag)
printf("WARNING: Unexpected or invalid input encountered on line %d!\nUnexpected results may occur...\n", i+1);
errorFlag = 0;
}
//We don't need this anymore
fclose(inputFile);
//Print the output header
printStudentHeader(outputFile);
//Sort the students
sortStudents(students, numStudents);
//Print the students
printStudents(students, numStudents, outputFile);
return 0;
}
/* * * * * * * * * * * * * * * * * * * * * * * * *
Main Program:
Display menu, get and run user choice.
* * * * * * * * * * * * * * * * * * * * * * * * */
int main()
{
int choice = 0; // store user selection
int quit = 0; // flag to end program
// print the menu, loop until user quits
do {
printf("\n\nWelcome to STUDENTS!\n===================\n\n"
"There are currently %d students in memory.\n\n"
"1. Add New Student(s)\n"
"2. Find Student by Last Name\n"
"3. List All Students\n"
"4. Sort Database\n"
"5. Load Students File (./students.dat)\n"
"6. Save Students File (./students.dat)\n"
"7. Clear Memory (New Database)\n"
"8. Quit\n\n", numStudents);
// input the user selection
choice = inputInteger("Choice: ");
printf("\n");
// run the appropriate function based on user choice
switch (choice)
{
case 1: // add
addStudents();
break;
case 2: // find
findStudent();
break;
case 3: // list
listStudents();
break;
case 4: // sort
sortStudents();
break;
case 5: // load
if (numStudents == 0 || confirm("LOAD file and LOSE all students in memory (y/n) ? "))
loadStudents();
break;
case 6: // save (only if students[] is not empty)
if (numStudents == 0) printf("There are no students to save yet!\n");
else if (confirm("OVERWRITE the file (y/n) ? "))
saveStudents();
break;
case 7: // new
if (confirm("DELETE all students from memory (y/n) ? "))
clearStudents();
break;
case 8: // quit
default: // quit
if (confirm("QUIT and LOSE all data in memory (y/n) ? "))
{
printf("\nThank you and goodbye!\n\n");
quit = 1;
}
break;
}
} while (quit == 0); // keep repeating until user chooses to quit
// quit = 1: end program successfully
#ifdef _MSC_VER
getchar();
getchar();
#endif
return 0;
}
