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-   -   QSort CStringArray (https://forums.offipalsta.com/showthread.php?t=45823)

Lars 28.09.2002 08:30

QSort CStringArray
 
// first, declare these somewhere
void SortStringArray (CStringArray& ar, BOOL bDescending);
int CompareDescending(const void *a, const void *b);
int CompareAscending(const void *a, const void *b);

// put something in your CString array
CStringArray bob;
bob.Add("Are");
bob.Add("You");
bob.Add("Talking");
bob.Add("To");
bob.Add("Me?");

// sort it
SortStringArray(bob, TRUE);

// here's the code!

//////////////////////////////////////////////////////////////////////////
int CompareAscending(const void *a, const void *b)
{
CString *pA = (CString*)a;
CString *pB = (CString*)b;
return (pA->Compare(*pB));
}

//////////////////////////////////////////////////////////////////////////
int CompareDescending(const void *a, const void *b)
{
CString *pA = (CString*)a;
CString *pB = (CString*)b;
return (-1 * (pA->Compare(*pB)));
}

//////////////////////////////////////////////////////////////////////////
void SortStringArray (CStringArray& csa, BOOL bDescending)
{
int iArraySize = csa.GetSize();
if (iArraySize <= 0)
return;

int iCSSize = sizeof (CString*);
void* pArrayStart = (void *)&csa[0];

if (bDescending)
qsort (pArrayStart, iArraySize, iCSSize, CompareDescending);
else
qsort (pArrayStart, iArraySize, iCSSize, CompareAscending);
}

Ja jälleen, beautifier ennen käyttöä

--
Lars


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