Level 33 C++ sourcerer. https://about.me/marek.knapek
You have stack buffer out of bounds write. On line 52 you declare h an array of 70 unsigned ints. On line 57 you store reference to such array. Later, on line 35 you write out of bounds, one element past end of the array. The _SPR_history[i] writes to _SPR_history[70]. Created an issue: https://github.com/X64X2/sh/issues/1
Doesn’t depend on programming language but something with visual debugger. You know that stuff when you can see current line of your source code highlighted, press a key to step into, step over and so on. You can see values inside your variables. You can also change your variables mid-run right form the debugger.
Because you spend 20% of your time writing bugs and the other 80% debugging them. At least make it pleasant experience (no printf-style debugging).
Back in the day I was using Turbo Pascal, Delphi, Visual Basic, C#, Java, PHP with Zend, Java Script, today I’m using Visual C++.
The interview starts … the interviewer asks me “Tell me about yourself.” … I respond “Did you receive my CV? I put all important details about me … right there. What questions do you have about my past jobs?” The interviewer encourages me again to tell him about myself, my past projects, etc. … Me: Awkward silence. … Me to myself: Dafuq? Should I read the CV from top to bottom OR WHAT?
For this purpose I would search for Linux specific thing - a RAM based storage that receives data writes and even flushes/fsycs and then lazily writes them to HDD/SSD. There would be problem in case of power loss, but the gained performance… Unfortunately, I don’t know any such tool.
Makes sense, how would you represent floor(1e42) or ceil(1e120) as integer? It would not fit into 32bit (unsigned) or 31bit (signed) integer. Not even into 64bit integer.
Oversimplified:
More questions:
The same style of question would be: How to create a hammer if in order to create a hammer you need a hammer? How was the first hammer created? Answer: By more primitive hammer, or something that is no hammer, but almost works as a hammer.
For more info read about bootstrapping compilers. Or trusting the trust by Ken Thompson.
You can always take a look how for example Windows 3.11 and earlier did it for their *.rtf file format and their “write.exe” editor / viewer / renderer (if you want to call it that way).