Tag: algorithm

Mergesort in C

Introduction Quicksort is most people’s go to sort function and that’s not a bad thing because it’s a really good general purpose sorting algorithm. A good implementation is really fast and, being an in place algorithm, it uses very little memory. The big drawback of Quicksort is that... Continue reading

General Comparison Functions in C

Introduction qsort, heapsort, mergesort, bsearch, and many more search and sort functions all take a compar argument to determine the sorting order of elements in an array. The compar function takes the form int (*compar)(const void *, const void *). The <code... Continue reading

Quicksort in C

Introduction Quicksort is one of the most common sorting algorithms and one of the most efficient. It’s so common that it’s part of C89. That said, it’s still good to know how it works, its strengths, and it’s weaknesses. It takes as a divide and conquer approach to sorting.... Continue reading