SW006014 Microchip Technology, SW006014 Datasheet - Page 110

• Manufacturer Part Number: SW006014
• Description: C COMPILER MPLAB FOR PIC24 MCU
• Manufacturer: Microchip Technology
• Type: MPLAB® C Compilerr
• Series: PIC24r

Specifications of SW006014

• Supported Families: PIC24
• Core Architecture: PIC
• Kit Contents: Software And Docs
• Mcu Supported Families: PIC24
• Tool Function: Compiler
• Tool Type: Compiler
• Processor Series: PIC24
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• For Use With/related Products: PIC24
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

DS51456E-page 106
qsort
Description:
Include:
Prototype:
Arguments:
Remarks:
Example:
Performs a quick sort.
<stdlib.h>
void qsort(void *base, size_t nelem, size_t size,
base
nelem
size
cmp
e1
e2
qsort overwrites the array with the sorted array. The comparison func-
tion is supplied by the user. In the following example, the list is sorted
according to the comparison function. This comp uses ascending order.
#include <stdlib.h> /* for qsort
#include <stdio.h>
#define NUM 7
int comp(const void *e1, const void *e2);
int main(void)
{
}
int comp(const void *e1, const void *e2)
{
}
Output:
Unsorted List: 35
Sorted List:
int (*cmp)(const void *e1, const void *e2));
int list[NUM] = {35, 47, 63, 25, 93, 16, 52};
int x;
printf("Unsorted List: ");
for (x = 0; x < NUM; x++)
qsort(list, NUM, sizeof(int), comp);
printf("\n");
printf("Sorted List:
for (x = 0; x < NUM; x++)
const int * a1 = e1;
const int * a2 = e2;
if (*a1 < *a2)
else if (*a1 == *a2)
else
printf("%d
printf("%d
return -1;
return 0;
return 1;
pointer to the start of the array
number of elements
size of the elements
pointer to the comparison function
pointer to the key for the search
pointer to the element being compared with the key
16
", list[x]);
", list[x]);
47
25
/* for printf */
63
35
");
25
47
© 2008 Microchip Technology Inc.
93
52
*/
16
63
52
93