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When does invoking a member function on a null instance result in undefined behavior?
...rstand is why it's undefined behavior to dereference a null pointer. In C++03, there's actually a bit of ambiguity here.
Although "dereferencing a null pointer results in undefined behavior" is mentioned in notes in both §1.9/4 and §8.3.2/4, it's never explicitly stated. (Notes are non-normative....
Do c++11 lambdas capture variables they don't use?
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edited Jun 20 at 9:12
Community♦
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answered May 30 '11 at 23:09
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How to do a PUT request with curl?
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Using the -X flag with whatever HTTP verb you want:
curl -X PUT -d arg=val -d arg2=val2 localho...
Change the name of the :id parameter in Routing resources for Rails
...ditional scope blocks to take out some of the repetition.
EDIT (May 8, 2014): Make it more obvious the answer contains information for both Rails 3 & 4. Update the links to the code to go to exact line numbers and commits so that they should work for a longer period of time.
EDIT (Nov 16, 20...
RESTful Login Failure: Return 401 or Custom Response
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First off. 401 is the proper response code to send when a failed login has happened.
401 Unauthorized
Similar to 403 Forbidden, but specifically for use when authentication is required and has failed or has not yet been provide...
Which is generally best to use — StringComparison.OrdinalIgnoreCase or StringComparison.InvariantCul
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Newer .Net Docs now has a table to help you decide which is best to use in your situation.
From...
Calling constructor from other constructor in same class
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edited Jun 21 '17 at 13:40
user2428118
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answered...
What is the advantage of using async with MVC5?
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The async actions are useful only when you are performing I/O bound operations such as remote se...
How to set a binding in Code?
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Eliahu Aaron
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answered Sep 23 '11 at 6:45
DypplDyppl
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Combining node.js and Python
...rs♦
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answered May 27 '12 at 16:17
Aleš KotnikAleš Kotnik
2,3...