can sumone help in understanding this piece of code-
it gives error while compilationCode:main() { int (*functable[2])(char *format, ...) ={printf, scanf}; int i = 100; (*functable[0])("%d", i); (*functable[1])("%d", i); (*functable[1])("%d", i); (*functable[0])("%d", &i); }
Note that the 2 scanf calls are incorrect since scanf should take a pointer as a parameter.Code:main() { // Create an array of function pointers. Index 0 points to printf, index 1 points to scanf int (*functable[2])(char *format, ...) ={printf, scanf}; int i = 100; // Equivalent to: printf("%d", i); (*functable[0])("%d", i); // Equivalent to: scanf("%d", i); (*functable[1])("%d", i); // Equivalent to: scanf("%d", i); (*functable[1])("%d", i); // Equivalent to: printf("%d", &i); (*functable[0])("%d", &i); }
bit∙hub [bit-huhb] n. A source and destination for information.
Also I get a warning about the initialization (you might too) since that isn't how printf and scanf are prototyped. (It's const char *format).
had no idea that you could create pointers to functions. mind == blown.
So now it looks like you're ready for qsort.Originally Posted by Epy
Wow, well now I know what vl-sort is a wrapper of (in AutoLISP).
