Your task for this month’s Exercise is to take a timestamp string and move values from inside a string (characters) into a structure. It’s not an easy exercise, and it doesn’t have a single, best solution.
Continue reading
Your task for this month’s Exercise is to code a text-processing routine that interprets the ^ character as a toggle for all-caps output. This challenge can be difficult, depending on how you interpret the toggle.
Continue reading
The challenge for this month’s Exercise is to fill a cup without overflowing it. That cup is an unsigned char value, which goes only to 255 maximum. If your goal is increase the value of an unsigned char variable by 10 percent, any value over 255 - (255/10), or 220, must be set to 255.
Continue reading
For my solution to this month’s Oscillation Exercise I created a toggle variable. This variable switches between 1 and -1. It sets the direction for the cascading values.
Continue reading
This month’s Exercise involves swapping elements between two string arrays. A number of solutions exist (as always), but because the “strings” are really pointers, the solution can be very specific. Yes, you just might have to use that dratted ** notation. Brace yourselves.
Continue reading
The two functions required from this month’s Exercise are show_arrays() and swap_arrays(). They’re not that difficult to code, meaning that you don’t need to use the dratted ** notation or perform any special tricks. Here’s how I solved the problem:
Continue reading
When I see a problem such as finding a filename in a pathname, one of the first things I think of are regular expressions. For this month’s Exercise, however, that’s not the solution I coded.
Continue reading
For this month’s Exercise, I offer both a string function solution as well as a solution that uses pointers. As you can guess, I thought of the string method first, which is where most programmers would run to avoid the dratted topic of pointers.
Continue reading
Unwinding percent-encoding involves three steps:
+ back into a space.A URL filter isn’t that difficult to code, once you know the rules. I’m sure you can concoct something clever or obfuscated in the C language, but I chose to use a clutch of if/else if/else statements to process input and generate output.
Continue reading