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Why do I get “unresolved external symbol” errors when using templates? [duplicate]
When I write C++ code for a class using templates and split the code between a source (CPP) file and a header (H) file, I get a whole lot of "unresolved external symbol" errors when it comes to linking the final executible, despite the object file being correctly built and included in the linking. ...
How to find if a given key exists in a C++ std::map
I'm trying to check if a given key is in a map and somewhat can't do it:
14 Answers
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What is the global interpreter lock (GIL) in CPython?
What is a global interpreter lock and why is it an issue?
8 Answers
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Can (domain name) subdomains have an underscore “_” in it?
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Most answers given here are false. It is perfectly legal to have
an underscore in a domain name. Let me quote the standard, RFC
2181, section 11, "Name syntax":
The DNS itself places only one restriction on the particular labels
that can be used to ident...
How to call a SOAP web service on Android [closed]
... finding good information on how to call a standard SOAP/WSDL web service with Android. All I've been able to find are either very convoluted documents and references to "kSoap2" and then some bit about parsing it all manually with SAX . OK, that's fine, but it's 2008, so I figured there should be ...
How to sort in-place using the merge sort algorithm?
...rst, naive in-place merge such as described here isn't the right solution. It downgrades the performance to O(N2).
The idea is to sort part of the array while using the rest as working area for merging.
For example like the following merge function.
void wmerge(Key* xs, int i, int m, int j, int...
Mediator Vs Observer Object-Oriented Design Patterns
...many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.
The Mediator pattern:
Define an object that encapsulates how a set of objects interact. Mediator promotes loose coupling by keeping objects from referring to each other...
How to get the current time in Python
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edited Oct 29 '19 at 17:00
RTHarston
36922 silver badges1212 bronze badges
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What is JSONP, and why was it created?
.... Wikipedia's document on JSON is (was) the top search result for JSONP. It says this:
10 Answers
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What exactly does git's “rebase --preserve-merges” do (and why?)
Git's documentation for the rebase command is quite brief:
2 Answers
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