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Linq Query keeps throwing “Unable to create a constant value of type System.Object…”, Why?
... Can you please explain the difference between "t.CustID == custIdToQuery" and "t.CustID.Equals(custIdToQuery)". thanks in advance
– Neel
Jan 4 '11 at 10:20
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Ioc/DI - Why do I have to reference all layers/assemblies in application's entry point?
...ibrary C drags along Library H, Library E, Library J, Library M, Library K and Library N. This makes it harder to reuse each library independently from the rest - for example in unit testing.
However, in a loosely coupled application, by moving all the references to the Composition Root, the depend...
gdb: how to print the current line or find the current line number?
list commands prints a set of lines, but I need one single line, where I am and where an error has probably occurred.
5 An...
How to open files relative to home directory
...is a mere convention; indeed, if you look at the documentation for File.expand_path, it correctly interprets the tilde, but it's a feature of the function itself, not something inherent to the underlying system; also, File.expand_path requires the $HOME environment variable to be correctly set. Whic...
C++ Convert string (or char*) to wstring (or wchar_t*)
... string of your interest, then your problem can be fully solved with the standard library (C++11 and newer) alone.
The TL;DR version:
#include <locale>
#include <codecvt>
#include <string>
std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> converter;
std::string ...
Django migration strategy for renaming a model and relationship fields
...ome errors if you don't update the names where it's imported e.g. admin.py and even older migration files (!).
Update: As ceasaro mentions, newer versions of Django are usually able to detect and ask if a model is renamed. So try manage.py makemigrations first and then check the migration file.
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How can building a heap be O(n) time complexity?
...?
Often, answers to these questions focus on the difference between siftUp and siftDown. Making the correct choice between siftUp and siftDown is critical to get O(n) performance for buildHeap, but does nothing to help one understand the difference between buildHeap and heapSort in general. Indeed, ...
Is std::unique_ptr required to know the full definition of T?
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Adopted from here.
Most templates in the C++ standard library require that they be instantiated with complete types. However shared_ptr and unique_ptr are partial exceptions. Some, but not all of their members can be instantiated with incomplete types. The motivation for ...
How to load assemblies in PowerShell?
...blies\Microsoft.SqlServer.Smo.dll'
There are multiple different versions and you may want to pick a particular version. :-)
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Alias with variable in bash [duplicate]
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I'd create a function for that, rather than alias, and then exported it, like this:
function tail_ls { ls -l "$1" | tail; }
export -f tail_ls
Note -f switch to export: it tells it that you are exporting a function. Put this in your .bashrc and you are good to go.
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