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C++0x has no semaphores? How to synchronize threads?
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You can easily build one from a mutex and a condition variable:
#include <mutex>
#include <condition_variable>
class semaphore
{
private:
std::mutex mutex_;
std::condition_variable condition_;
unsigned long count_ = 0; // In...
Why does npm install say I have unmet dependencies?
I have a node package. When I run npm install from the package root, it installs a bunch of things, but then prints several error messages that look like this:
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Multiple levels of 'collection.defaultdict' in Python
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Use:
from collections import defaultdict
d = defaultdict(lambda: defaultdict(int))
This will create a new defaultdict(int) whenever a new key is accessed in d.
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Linux command to print directory structure in the form of a tree
Is there any linux command that I can call from a Bash script that will print the directory structure in the form of a tree, e.g.,
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What do people find difficult about C pointers? [closed]
From the number of questions posted here, it's clear that people have some pretty fundemental issues when getting their heads around pointers and pointer arithmetic.
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Proper indentation for Python multiline strings
...anging indents" here... Especially because if you change the variable name from string to text or anything of a different length, then you now need to update the indentation of literally every single line of the multiline string just to get it to match up with the """ properly. Indentation strategy ...
Access to Modified Closure (2)
This is an extension of question from Access to Modified Closure . I just want to verify if the following is actually safe enough for production use.
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What is the full path to the Packages folder for Sublime text 2 on Mac OS Lion
...er}/Library/Application Support/Sublime Text 2/Packages
Get to it quickly from within Sublime via the menu at Sublime Text 2... Preferences... Browse Packages
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Is there a way to tell git to only include certain files instead of ignoring certain files?
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I haven't had need to try this myself, but from my reading of TFM it looks like a negated pattern would do what you want. You can override entries in .gitignore with later negated entries. Thus you could do something like:
*.c
!frob_*.c
!custom.c
To have it ignore ...
#include in .h or .c / .cpp?
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@user9379 That will prevent it from being included more than once per .c or .cpp file. Each .c or .cpp file is generally build individually though, which means a .h will be re-parsed for each .c or .cpp file you compile.
– Brendan Lon...