C++ Selection Sort of an Array of String Objects

问题:

I'm trying to implement a selection sort function for an array of user inputted string objects. Am I on the right path as far as arguments go. Thanks

void selectionSort(char ARRAY[], int size)
{
int startScan, minIndex, minValue;

for (startScan = 0; startScan < (size - 1); startScan++)
{
    minIndex = startScan;
    minValue = ARRAY[startScan];
    for (int index = startScan + 1; index < size; index++)
    {
        if (ARRAY[index] < minValue)
        {
            minValue = ARRAY[index];
            minIndex = index;
        }
    }
    ARRAY[minIndex] = ARRAY[startScan];
    ARRAY[startScan] = minValue;
}
}

回答1:

You probably want to use the STL libabry and declare the argument as

std::vector< std::string >

then the sort function will work directly, like this

std::vector< std::string > array;
std::sort (array.begin(), array.end());

回答2:

If you are sorting string objects then there's a lot of problems. The code you wrote sorts characters. This:

char ARRAY[]

is an array of characters. These:

char *ARRAY[]
std::string ARRAY[]

are arrays of strings. You will have to change your function appropriately with either of these.