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Why does auto a=1; compile in C?
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auto is an old C keyword that means "local scope". auto a is the same as auto int a, and because local scope is the default for a variable declared inside a function, it's also the same as int a in this example.
This keyword is actually a leftov...
decimal vs double! - Which one should I use and when? [duplicate]
...use a double and when should I use a decimal type?
Which type is suitable for money computations? (ie. greater than $100 million)
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biggest integer that can be stored in a double
What is the biggest "no-floating" integer that can be stored in an IEEE 754 double type without losing precision ?
7 Answer...
What is
...s of T, it is saying it has to be a superclass of T. The distinction is important because extends tells you what you can get out of a class (you get at least this, perhaps a subclass). super tells you what you can put into the class (at most this, perhaps a superclass).
In this specific case, what ...
To find whether a column exists in data frame or not
... dat and that your column name to check is "d", you can use the %in% operator:
if("d" %in% colnames(dat))
{
cat("Yep, it's in there!\n");
}
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How do servlets work? Instantiation, sessions, shared variables and multithreading
Suppose, I have a webserver which holds numerous servlets. For information passing among those servlets I am setting session and instance variables.
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Method chaining - why is it a good practice, or not?
...chaining is the practice of object methods returning the object itself in order for the result to be called for another method. Like this:
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Run an Application in GDB Until an Exception Occurs
I'm working on a multithreaded application, and I want to debug it using GDB.
4 Answers
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Vim: Move cursor to its last position
Is it possible in (g)Vim to move the cursor to its previous position (while in normal mode)? Something to cycle back and forth in the list of previous cursor positions would be ideal. But also just to switch to the last location would suffice (something like cd - in bash with directories).
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How to get relative path from absolute path
...So I would prefer to show the file path relative to the assembly/exe directory.
23 Answers
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