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When can I use a forward declaration?
I am looking for the definition of when I am allowed to do forward declaration of a class in another class's header file:
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Android Studio - Auto complete and other features not working
I installed android studio.. it was working fine. Now all the sudden, none of the auto complete features are working.. I can type anything anywhere no variable checking, no help with functions or checking anything. I can still compile the project and I get errors when that happens.
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get just the integer from wc in bash
... that if you're going to answer a (1.5 yr-old) question) might as well put all the info into the answer, that's all :)
– Dave Newton
Jan 30 '12 at 23:47
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Remove duplicate rows in MySQL
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A really easy way to do this is to add a UNIQUE index on the 3 columns. When you write the ALTER statement, include the IGNORE keyword. Like so:
ALTER IGNORE TABLE jobs
ADD UNIQUE INDEX idx_name (site_id, title, company);
Th...
Is there a visual profiler for Python? [closed]
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A friend and I have written a Python profile viewer called SnakeViz that runs in a web browser. If you are already successfully using RunSnakeRun SnakeViz may not add that much value, but SnakeViz is much easier to install.
Edit: SnakeViz supports Python 2 and 3 and works on a...
When would you use .git/info/exclude instead of .gitignore to exclude files?
...gnore rules, unlike .git/info/exclude.
So, .gitignore is available across all clones of the repository. Therefore, in large teams all people are ignoring the same kind of files Example *.db, *.log.
And you can have more specific ignore rules because of multiple .gitignore.
.git/info/exclude is av...
Duplicate ID, tag null, or parent id with another fragment for com.google.android.gms.maps.MapFragme
... block, code updated.
More edits: Turns out you need that try-catch after all. Just checking for the map fragment turned out not to work so well after all. Blergh.
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Can't ignore UserInterfaceState.xcuserstate
...ked"
Alternatively you can use the -a option to git commit that will add all files that have been modified or deleted.
Once you've removed the file from git, it will respect your .gitignore.
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Git: Merge a Remote branch locally
I've pulled all remote branches via git fetch --all . I can see the branch I'd like to merge via git branch -a as remotes/origin/branchname. Problem is it is not accessible. I can't merge or checkout.
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Check if an apt-get package is installed and then install it if it's not on Linux
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To check if packagename was installed, type:
dpkg -s <packagename>
You can also use dpkg-query that has a neater output for your purpose, and accepts wild cards, too.
dpkg-query -l <packagename>
To find what package owns the command, try:
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