Posted: Thu Oct 19, 2006 5:28 pm
I have all the slopes in an STRUCT, so I want to sort them.. but I think that an n^2 algorithm is not the answer, so how can I sort an struct using qsort C++? or.. If you have another idea?
the C++ way is using sort() from <algorithm>
To use any of them, you just need a custom comparison function.
For C:
Code: Select all
// warning, not tested
int cmp(const void *aa, const void *bb) {
struct myStruct *a = (struct myStruct *)aa;
struct myStruct *b = (struct myStruct *)bb;
// use aa->member, bb->member
// return -1, 0 or 1
}