What does .compare do in c++? for example in this sorting function void employeeSort(string lastName[], char grades[], int n) { int i; int j; for (i = 0; i < n; i++) { for (j = 0; j < n - i - 1; j++) { if (lastName[j].compare(lastName[j + 1]) > 0) // If name at index j is greater than last name at index j + 1, also this is where I need help, knowing what does .compare do and do to lastName[j].compare(lastName[j + 1]) > 0 { string temp = lastName[j]; lastName[j] = lastName[j + 1]; lastName[j + 1] = temp; //Swaps names char tempo = grades[j]; grades[j] = grades[j + 1]; grades[j + 1] = tempo; //Swaps grades } } } }
What does .compare do in c++?
for example in this sorting function
void employeeSort(string lastName[], char grades[], int n)
{
int i;
int j;
for (i = 0; i < n; i++)
{
for (j = 0; j < n - i - 1; j++)
{
if (lastName[j].compare(lastName[j + 1]) > 0) // If name at index j is greater than last name at index j + 1, also this is where I need help, knowing what does .compare do and do to lastName[j].compare(lastName[j + 1]) > 0
{
string temp = lastName[j];
lastName[j] = lastName[j + 1];
lastName[j + 1] = temp; //Swaps names
char tempo = grades[j];
grades[j] = grades[j + 1];
grades[j + 1] = tempo; //Swaps grades
}
}
}
}
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