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When does invoking a member function on a null instance result in undefined behavior?
...behavior to call a member function through a null pointer. If the function is static, it's technically undefined as well, but there's some dispute.
The first thing to understand is why it's undefined behavior to dereference a null pointer. In C++03, there's actually a bit of ambiguity here.
Alth...
Why do we need RESTful Web Services?
...g to learn RESTful web services (it's better to say that I'll have to do this because it's a part of CS master degree program).
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Reference: What is variable scope, which variables are accessible from where and what are “undefined
What is "variable scope" in PHP? Are variables from one .php file accessible in another? Why do I sometimes get "undefined variable" errors?
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Optimizing away a “while(1);” in C++0x
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Does someone have a good explanation of why this was necessary to allow?
Yes, Hans Boehm provides a rationale for this in N1528: Why undefined behavior for infinite loops?, although this is WG14 document the rationale applies to C++ as well and the document refers to b...
Database sharding vs partitioning
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Partitioning is more a generic term for dividing data across tables or databases. Sharding is one specific type of partitioning, part of what is called horizontal partitioning.
Here you replicate the schema across (typically) multiple in...
How to tell if a file is git tracked (by shell exit code)?
Is there a way to tell if a file is being tracked by running some git command and checking its exit code?
8 Answers
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What is the right way to check for a null string in Objective-C?
I was using this in my iPhone app
20 Answers
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[ :Unexpected operator in shell programming [duplicate]
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There is no mistake in your bash script. But you are executing it with sh which has a less extensive syntax ;)
So, run bash ./choose.sh instead :)
share
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What does [object Object] mean?
I am trying to alert a returned value from a function and I get this in the alert:
9 Answers
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Why is Multiple Inheritance not allowed in Java or C#?
I know that multiple inheritance is not allowed in Java and C#. Many books just say, multiple inheritance is not allowed. But it can be implemented by using interfaces. Nothing is discussed about why it is not allowed. Can anybody tell me precisely why it is not allowed?
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