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Search - "endianess"
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So here I am sitting on my dusty laptop gaming laptop (because supposedly it would offer me better performance in compiling code and working with CUDA according to the people above me) at a research institute where I just started working at. I am told that there are some issues with the code and that it fails to build on Windows with MSVC that ships with Visual Studio 2017 and later.
I poor some hot tea from my insulated bottle I brought from home and start reading.
I look in this header file and what do I see - a custom uint24_t struct. Interesting...
I keep sifting through the code base. I find some functions that check and change Endianess. Ok, but the software is developed, built on and runs only on Win7 and later desktop systems. Never mind...
Further I find a custom "allocator" that is used throughout the whole code base. It has three inline static class member functions: allocate, copy and deallocate plus some private constructors. And these just wrap around the standard new and free calls. Some flavours of this class actually only deallocate (with a comment above them: "This allocator does not allocate. HANDLE WITH CARE!!!", which is btw the only "code documentation" I have managed to find).
But wait! What is this? A custom thread and mutex. Oh, and string, and vector.
Further down the rabbit hole I find a custom math library with a matrix class that does not support multiplication between a matrix and a vector. Perhaps not a use case I guess...
I continue and come across some UI-related calls. Interesting, I wonder what they are using as a framework. Oh, my...We have an extensive GUI custom framework written from scratch (drawing buttons and all).
All of this is to load an OBJ file and render it on the screen on a standard Windows PC in some way.
Very nice... ;_;1 -
Let's focus/master computer architectures, coding paradigms, datastructures. Everything comes after that...the problem with todays academics is that they are more focused on immediately deploying students to industry; theyre more focused on teaching specific frameworks and specific language instead of teaching how things work...i bet most students (at least in my country) are having troubles with endianess or encoding or even byte manipulation or what a thread is....If im going to be the teacher for example of an oop subject, ill let the student choose the language they want as long as the oop paradigm is intact ,it will be fine.. i dont friggin care whether you know vue or angular or swing if you dont even know what a callback is..
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ATTENTION PLEASE! Important announcement following:
Please check your interface implementations for correct byteorder according specification BEFORE YOU START COMPLAINING ABOUT DATA FAILURES ON EXCHANGING DATA.
Freakin hell, if I'd get some money for every byte order mismatch on testing interfaces, I'd be a be a billionaire.
And why are all those highlevel I-know-every-fucking-framework developer incapable of checking the real memory content of a datatype, and the real data content on the interface even if you tell them that their byte order is obviously wrong?
No, your system is not the centre of the universe and I don't care how you get your less-than-32bit-datatypes-are-for-assembler-usage-frameworks to change byteorder. It's not rocket science, if there's no ready-to-use-function then write those 4 lines yourself.
Next time I get to specify an interface I'll go for mixed-endian, just to make sure everybody involved knows the concepts of endianess afterwards.2 -
Endianess is such a fucken bitch. On one hand I never stumble upon it but currently it's a thing in any project I tackle.2