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Meaning of Open hashing and Closed hashing
...instead once an object is hashed, it is stored in a list which is separate from the hash table's internal array. "open" refers to the freedom we get by leaving the hash table, and using a separate list. By the way, "separate list" hints at why open hashing is also known as "separate chaining".
In s...
.gitignore exclude folder but include specific subfolder
...
Commit 59856de from Karsten Blees (kblees) for Git 1.9/2.0 (Q1 2014) clarifies that case:
gitignore.txt: clarify recursive nature of excluded directories
An optional prefix "!" which negates the pattern; any matching file excluded by a...
What's the difference between `1L` and `1`?
...
From the Constants Section of the R Language Definition:
We can use the ‘L’ suffix to qualify any number with the intent of making it an explicit integer.
So ‘0x10L’ creates the integer value 16 from the hexadec...
How to check for a valid Base64 encoded string
...
Use Convert.TryFromBase64String from C# 7.2
public static bool IsBase64String(string base64)
{
Span<byte> buffer = new Span<byte>(new byte[base64.Length]);
return Convert.TryFromBase64String(base64, buffer , out int bytes...
Using generic std::function objects with member functions in one class
...e control under the hood. Example with my win32 api to forward api message from a class to another class.
IListener.h
#include <windows.h>
class IListener {
public:
virtual ~IListener() {}
virtual LRESULT operator()(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) = 0;
};
L...
Expand div to max width when float:left is set
...'ve found of doing this is not very obvious. You need to remove the float from the second column, and apply overflow:hidden to it. Although this would seem to be hiding any content that goes outside of the div, it actually forces the div to stay within its parent.
Using your code, this is an exam...
How to round to 2 decimals with Python?
...*100)/100) # -> 2.36
print(math.floor(v*100)/100) # -> 2.35
or:
from math import floor, ceil
def roundDown(n, d=8):
d = int('1' + ('0' * d))
return floor(n * d) / d
def roundUp(n, d=8):
d = int('1' + ('0' * d))
return ceil(n * d) / d
...
Which C++ idioms are deprecated in C++11?
...
Great answer, but I would strike result_of from the list. Despite the cumbersome typename needed before it, I think typename result_of<F(Args...)::type can sometimes be easier to read than decltype(std::declval<F>()(std::declval<Args>()...), and with th...
how to change default python version?
...dmin 13964 Feb 20 11:14 pythonw3.2-32*
If you also installed a Python 2 from python.org, it would have a similar framework bin directory with no overlapping file names (except for 2to3).
$ open /Applications/Python\ 2.7/Update\ Shell\ Profile.command
$ sh -l
$ echo $PATH
/Library/Frameworks/Pyth...
How to convert a String to its equivalent LINQ Expression Tree?
...d compiled. Question appears to be,, getting your grammar to be converted from 'string' to 'predicate'. // Lambda expression as data in the form of an expression tree. System.Linq.Expressions.Expression<Func<int, bool>> expr = i => i < 5; // Compile the expression tree into execu...