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How can I detect if this dictionary key exists in C#?
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What is the type of c.PhysicalAddresses? If it's Dictionary<TKey,TValue>, then you can use the ContainsKey method.
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Correct way to populate an Array with a Range in Ruby
...y created and you want to add a range to it: I have order = 1. Then order << (2.25).to_a. But this creates another array inside the array, I simply want the range from 2 to 25. Yet if I try order << (2.25) I get the error can't convert Range into Integer.
– kakubei
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Asserting successive calls to a mock method
...alls list is checked for
the calls.
If any_order is False (the default) then the calls must be sequential.
There can be extra calls before or after the specified calls.
If any_order is True then the calls can be in any order, but they must
all appear in mock_calls.
Example:
>&g...
Using GCC to produce readable assembly?
...t.o: file format elf32-i386
Disassembly of section .text:
00000000 <main>:
#include <stdio.h>
int main(void)
{
0: 55 push ebp
1: 89 e5 mov ebp,esp
3: 83 e4 f0 and esp,0xfffffff0
6: 83 ec 10 ...
C++ auto keyword. Why is it magic?
...sible conditions: either it wasn't allowed, or else it was assumed by default.
The use of auto to mean a deduced type was new with C++11.
At the same time, auto x = initializer deduces the type of x from the type of initializer the same way as template type deduction works for function templates....
How to detect if a property exists on an ExpandoObject?
... sealed class ExpandoObject : IDynamicMetaObjectProvider,
IDictionary<string, Object>, ICollection<KeyValuePair<string, Object>>,
IEnumerable<KeyValuePair<string, Object>>, IEnumerable, INotifyPropertyChanged
You can use this to see if a member is defined:
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Creating an array of objects in Java
.... So the analogous C++ code would be A **a = new A*[4]; for (int i = 0; i < 4; ++i) { a[i] = new A(); }.
– Vsevolod Golovanov
Apr 3 '16 at 13:56
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How to name and retrieve a stash by name in git?
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This does not answer the question. By default you end up with a bunch of numbers for your stash , but this doesnt answer how you can put a name to identify easily.
– GoodSp33d
Sep 5 '14 at 9:15
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Do I need to explicitly call the base virtual destructor?
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Why doesn’t Nick Bolton’s code cause a segmentation fault although it calls the base destructor twice, while calling delete on a pointer to the base class twice does cause a segmentation fault?
– Maggyero
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Is there any Rails function to check if a partial exists?
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I was struggling with this too. This is the method I ended up using:
<%= render :partial => "#{dynamic_partial}" rescue nil %>
Basically, if the partial doesn't exist, do nothing. Did you want to print something if the partial is missing, though?
Edit 1: Oh, I fail at reading compr...