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What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?
... Invalid instruction 0x00dd
printf crashes. "O_O"
gcc 4.4@x86_64-suse-linux
We like to think that:
..05 int has the size of pointers
but 'sizeof(int)==sizeof(void*)' is false.
..08 overshifting is okay
but '(1<<bits_per_int)==0' is false.
..09a minus shifts backwards
but '(t=-1,(15<&l...
Do regular expressions from the re module support word boundaries (\b)?
...e the \b to match a word boundary. However, the following snippet in the Python interpreter does not work as expected:
4 ...
How do I remove files saying “old mode 100755 new mode 100644” from unstaged changes in Git?
...n Windows Powershell. git config --list --show-origin | sls filemode or on Linux git config --list --show-origin | grep filemode. This will show you where you need to make the adjustments.
– Frank Fu
Feb 19 '19 at 6:31
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Command not found when using sudo
... must have an executable permission bit set.
In order to fully understand Linux file permissions you can study the documentation for the chmod command. chmod, an abbreviation of change mode, is the command that is used to change the permission settings of a file.
To read the chmod documentation fo...
file_put_contents(meta/services.json): failed to open stream: Permission denied
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I think it is the most convenient answer for Linux users. Thanks @GavinR. chmod 777 is a complete nightmare.
– Abdalla Arbab
Jan 9 '18 at 7:11
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TypeError: module.__init__() takes at most 2 arguments (3 given)
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@VMAtm: Why dont you try it and find out. Python's great cos it has the interpreter. Great for quick experimentation
– Sheena
Jan 27 '17 at 5:10
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Split a string at uppercase letters
What is the pythonic way to split a string before the occurrences of a given set of characters?
16 Answers
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Why should we typedef a struct so often in C?
...cts where this use of typedef to hide struct is considered a bad idea, the Linux kernel is probably the most well-known such project. See Chapter 5 of The Linux Kernel CodingStyle document for Linus' angry words. :) My point is that the "should" in the question is perhaps not set in stone, after all...
How do I launch the Android emulator from the command line?
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If you run from a Linux terminal, you must cd into the $ANDROID_SDK/tools folder or it will not work.
– shimatai
May 24 '17 at 22:23
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Reloading submodules in IPython
Currently I am working on a python project that contains sub modules and uses numpy/scipy. Ipython is used as interactive console. Unfortunately I am not very happy with workflow that I am using right now, I would appreciate some advice.
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