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What's the result of += in C and C++?
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Semantics of the compound assignment operators is different in C and C++:
C99 standard, 6.5.16, part 3:
An assignment operator stores a value in the object designated by the left operand. An
assignment expression has the value of the l...
Determine if ActiveRecord Object is New
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374
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Devise form within a different controller
... @devise_mapping ||= Devise.mappings[:user]
end
Source: http://pupeno.com/blog/show-a-devise-log-in-form-in-another-page/
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Storing R.drawable IDs in XML array
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Recommendation: After user "imgs" add the following line: imgs.recycle();
– benoffi7
Jan 4 '14 at 17:01
9
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Feedback on using Google App Engine? [closed]
... app engine for my small quake watch application
http://quakewatch.appspot.com/
My purpose was to see the capabilities of app engine, so here are the main points:
it doesn't come by default with Django, it has its own web framework which is pythonic has URL dispatcher like Django and it uses Djan...
How to intercept all AJAX requests made by different JS libraries
... Hi @jfriend00 - how would you hook all fetch api requests - stackoverflow.com/questions/44728723/…?
– colemerrick
Jun 23 '17 at 19:33
1
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Change a branch name in a Git repo
...u can view using
man git-branch
or
git help branch
Specifically, the command is
git branch (-m | -M) [<oldbranch>] <newbranch>
where the parameters are:
<oldbranch>
The name of an existing branch to rename.
<newbranch>
The new name for an existi...
How can I wait till the Parallel.ForEach completes
...in many threads. The Task class contains Wait() to wait till the task gets completed. Like that, how I can wait for the Parallel.ForEach to complete and then go into executing next statements?
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How to change variables value while debugging with LLDB in Xcode?
...he current
program context, using variables currently in scope. This command
takes 'raw' input (no need to quote stuff).
Syntax: expression --
Command Options Usage: expression [-f ] [-G ]
[-d ] [-u ] -- expression [-o] [-d
] [-u ] -- expression
-G <gdb-for...
ruby convert array into function arguments
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