In last week’s post, I updated information I had originally written about the useful getline() function. The topic is worthy of further exploration, specifically with the mechanics behind the function’s internal allocation — and reallocation — of memory.
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Back in early 2015, I wrote about the getline() function, which is a handy way to read a string. I’ve been informed that my post is the top result for a Google search on getline() — and I have an update!
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Can you write your own left-pad function in C? Would you get so angry that you’d pull it from the Jenga-tower NPM and bring the Internet to its knees? I hope your answer Yes to the first question and No to the second, because your task for this month’s Exercise is to write that function.
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A launched thread can be passed an argument, similar to any function. And the thread can return a value, just like any function. But while the thread runs, options for communications are rather limited.
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Padding a string on its left side isn’t that difficult, yet it’s a vital piece of code. To understand why, you need to know that the initialism NPM stands for Node Package Manager. It’s a critical part of the Internet.
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If you’re like me, you’re probably more familiar with the concept of pipes at the command prompt than in a programming environment. Or maybe you don’t care either way. Regardless, both types of pipe are similar forms of communications, but programming pipes seem specifically weird to me.
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A thread ends in one of three ways: natural causes, an early exit, or sudden death. Yes, it’s exciting, but no more than any aspect of programming.
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Threads in your code go off and do their own thing, running independently from other parts of the code. Still, the thread is established as a function in your source code file. Like any function, it can leave early.
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To code a simulated elevator ride you must know the floor requests, up and down. This is the challenge given for this month’s Exercise, which can either drive you nuts or delight you depending on how you craft your solution.
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In last week’s Lesson, a program spawned a single thread. This thread runs at the same time as the main program, interrupting text input (if you let it). Such fun! But a multithreaded program isn’t limited to running just two threads. Your code can spawn multiple threads, each running simultaneously.
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