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Why is the order in dictionaries and sets arbitrary?
...ash tables, so there's still some liberty). The fact that dictionaries use __hash__ and __eq__ (and nothing else) is practically a language guarantee, not an implementation detail.
– user395760
Mar 18 '13 at 15:16
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Better way to cast object to int
... is probably trivial, but I can't think of a better way to do it. I have a COM object that returns a variant which becomes an object in C#. The only way I can get this into an int is
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Getting a random value from a JavaScript array
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Creating a ZIP Archive in Memory Using System.IO.Compression
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Thanks to https://stackoverflow.com/a/12350106/222748 I got:
using (var memoryStream = new MemoryStream())
{
using (var archive = new ZipArchive(memoryStream, ZipArchiveMode.Create, true))
{
var demoFile = archive.CreateEntry("foo.txt");
...
Python read-only property
...he new-style classes.
Example:
>>> class A(object):
... def __init__(self, a):
... self._a = a
...
... @property
... def a(self):
... return self._a
...
>>> a = A('test')
>>> a.a
'test'
>>> a.a = 'pleh'
Traceback (most recent call la...
What is the difference between char * const and const char *?
...ld declare both variables to be int * const; I don't know any way to use a combined declaration to create two variables of that type without a typedef.
– supercat
Apr 12 '13 at 21:57
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6个变态的C语言Hello World程序 - 创意 - 清泛网 - 专注C/C++及内核技术
...要动用C++的编译器g++才能编程通过。
hello1.c
#define _________ }
#define ________ putchar
#define _______ main
#define _(a) ________(a);
#define ______ _______(){
#define __ ______ _(0x48)_(0x65)_(0x6C)_(0x6C)
#define ___ _(0x6F)_(0x2C)_(0x20)_(0x77)_(0x6F)
#define ____ _...
Understanding __get__ and __set__ and Python descriptors
... how Python's property type is implemented. A descriptor simply implements __get__, __set__, etc. and is then added to another class in its definition (as you did above with the Temperature class). For example:
temp=Temperature()
temp.celsius #calls celsius.__get__
Accessing the property you assi...
Why does cURL return error “(23) Failed writing body”?
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It did work for curl -s https://raw.githubusercontent.com/hermitdave/FrequencyWords/master/content/2016/ro/ro_50k.txt | head -20 (without -s I get the same error).
– Dan Dascalescu
Sep 14 '17 at 8:46
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What are valid values for the id attribute in HTML?
... edited Dec 11 '19 at 18:26
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answered Sep 17 '08 at 1:42
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