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C++ templates that accept only certain types
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I suggest using Boost's static assert feature in concert with is_base_of from the Boost Type Traits library:
template<typename T>
class ObservableList {
BOOST_STATIC_ASSERT((is_base_of<List, T>::value)); //Yes, the double parentheses are needed, otherwise the comma will b...
FFmpeg on Android
...e generated in step 1, just add a line similar to this to Android.mk: LOCAL_STATIC_LIBRARIES := libavcodec libavformat libavutil libc libz
Use the ffmpeg-wrapping dynamic library from your java sources. There's enough documentation on JNI out there, you should be fine.
Regarding using ffmpeg for p...
John Carmack's Unusual Fast Inverse Square Root (Quake III)
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Casting the pointer to long is an approximation of log_2(float). Casting it back is an approximation of 2^long. This means that you can make the ratio approximately linear.
– wizzwizz4
Sep 1 '17 at 17:29
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How to solve “Could not establish trust relationship for the SSL/TLS secure channel with authority”
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@karank Consider putting it in the Application_Start method in the Global.asax (see stackoverflow.com/a/12507094/1175419). I would strongly recommend using a #if DEBUG compiler directive or something similar as mentioned in Luke's comment.
– Rich C
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Does “git fetch --tags” include “git fetch”?
... -- gitster -- in commit 9fcd144, 26 Oct 2016)
fetch: use "quick" has_sha1_file for tag following
When fetching from a remote that has many tags that are irrelevant to branches we are following, we used to waste way too many cycles when checking if the object pointed at by a tag (that we ...
Why would I ever use push_back instead of emplace_back?
C++11 vectors have the new function emplace_back . Unlike push_back , which relies on compiler optimizations to avoid copies, emplace_back uses perfect forwarding to send the arguments directly to the constructor to create an object in-place. It seems to me that emplace_back does everything p...
How to break a line of chained methods in Python?
...al parenthesis:
subkeyword = (
Session.query(Subkeyword.subkeyword_id, Subkeyword.subkeyword_word)
.filter_by(subkeyword_company_id=self.e_company_id)
.filter_by(subkeyword_word=subkeyword_word)
.filter_by(subkeyword_active=True)
.one()
)
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How to Implement Custom Table View Section Headers and Footers with Storyboard
...ewCell does not belong in UITableView header.
– raven_raven
Sep 28 '17 at 11:23
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How to get all properties values of a JavaScript Object (without knowing the keys)?
...nd val
}
Object.values shim
Finally, as noted in the comments and by teh_senaus in another answer, it may be worth using one of these as a shim. Don't worry, the following does not change the prototype, it just adds a method to Object (which is much less dangerous). Using fat-arrow functions, thi...
How do you configure Django for simple development and deployment?
...y earlier answer still applies:
I have multiple settings files.
settings_local.py - host-specific configuration, such as database name, file paths, etc.
settings_development.py - configuration used for development, e.g. DEBUG = True.
settings_production.py - configuration used for production, e.g...