The next step in my Base 36 series is to translate a decimal value into its base 36 representation. In last week’s Lesson, code was presented to build a powers table and slice a decimal value into its base 36 components. This Lesson completes the task with a function, base36_sting() to build and output a base 36 value.
Continue reading
To build a number in base 36, you need to know the powers of base 36. This information is required to output digits — 0 through 9 and then A through Z — in the proper order to represent a base 36 value. This task may seem complicated, but it’s the same process that takes place for any counting base.
Continue reading
This month’s Exercise output values in various bases, but only those bases from 2 to 10. For other bases, especially those that alien beings might use, more effort is required. Therefore, I’d like to begin exploring a ridiculous counting base, base 36.
Continue reading
The C11 standard added a few new keywords to the language. These are often called the “underscore keywords” because each is prefixed with an underscore. The second letter is often capitalized, as is the case with _Alignof.
Continue reading
As you might suspect, searching a binary search tree (BST) involves a recursive function. This function must plow through the tree, finding a value in a specific node. Because the BST is organized, the search process works far more quickly than when the data is unorganized or set in a sequential array. In fact, the bsearch() function uses a similar scheme requiring that the data first be sorted before the function works its magic.
Continue reading
A binary search tree works best when code is available to search the tree. Before doing so, I’d like to demonstrate how a tree is processed, one node at a time.
Continue reading
Tree structures are yet another way to organize data. They’re similar to a linked list, but with the data organized by value into a series of branches and leaves. OMG! It’s like a tree!
Continue reading
Though I’m admittedly not good at math (at least according to my grades in school), I enjoy playing with math stuff on the computer. Programming allows me to mess with numbers and values without the risk of that ugly red mark and the need to wonder how a D or an F on my transcript affects my overall GPA.
Continue reading
I had a reader offer me a puzzle the other day. His code ran well without the #include directive and he wondered why. I did, too.
Continue reading
Your C programs aren’t meant to suffer with an inability to handle values such as the square root of -1, the imaginary number i. No, you can easily manage such mathematical mysteries, making rare the possibility of a -nan result, as shown in last week’s Lesson.
Continue reading