C / C++ Code Portfolio

int Compare(const void *elemA, const void *elemB)
{
// use strcmp() to determine whether elemA is greater than, less than, or equal to elemB
return(strcmp(*(char **)elemA, *(char **)elemB));
}

void SortStudents(const char *studentList[], size_t studentCount)
{
// use qsort() to sort the student list using Compare()
qsort((void *)studentList, studentCount, sizeof(studentList[0]), Compare);
}

void DisplayClassStatus(const char *registrants[], size_t registrantCount,
const char *attendees[], size_t attendeeCount)
{
printf("Not present:\n");
// for each registrant
for (int registrant = 0; registrant < (int)registrantCount; registrant++)
{
// find whether the registrant attended
char *match = (char *)bsearch(®istrants[registrant], attendees,
attendeeCount, sizeof(attendees[0]), Compare);
// if the registrant didn't attend
if (match == NULL)
{
// print the name of the non-attending registrant
printf("%s\n", registrants[registrant]);
}
}
printf("Not registered:\n");
// for each attendant
for (int attendant = 0; attendant < (int)attendeeCount; attendant++)
{
// find whether the attendant was registered
char *match = (char *)bsearch(&attendees[attendant], registrants,
registrantCount, sizeof(registrants[0]), Compare);
// if the attendant was not registered
if (match == NULL)
{
// print hte name of the non-registered attendant
printf("%s\n", attendees[attendant]);
}
}
}
Bit Operations
// This function finds the number of bits used in an unsigned int type

int CountIntBitsF(void)
{
//set an unsigned int equal to 1, initialize the bit counter