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37 lines
777 B
37 lines
777 B
#include <stdio.h>
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#include <stdlib.h>
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void someFunction(int arg)
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{
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printf("This is someFunction being called and arg is: %d\n", arg);
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printf("Now, leaving the funciton!\n");
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}
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int compare(const void* left, const void* right)
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{
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return (*(int*)right - *(int*)left);
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}
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int main()
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{
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void (*pf)(int);
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pf = &someFunction;
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printf("We are about to call someFunction() using a pointer!\n");
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(pf)(5);
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printf("Wow that was cool!");
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int (*cmp)(const void*, const void*);
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cmp = &compare;
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int iarray[] = {1,2,3,4,7,5,6,9,8};
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qsort(iarray, sizeof(iarray) / sizeof(*iarray), sizeof(*iarray), cmp);
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int c = 0;
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while (c < sizeof(iarray) / sizeof(*iarray))
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{
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printf("%d\t", iarray[c]);
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c++;
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}
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return 0;
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} |