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Accessing JPEG EXIF rotation data in JavaScript on the client side
I'd like to rotate photos based on their original rotation, as set by the camera in JPEG EXIF image data. The trick is that all this should happen in the browser, using JavaScript and <canvas> .
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Why is C so fast, and why aren't other languages as fast or faster? [closed]
In listening to the StackOverflow podcast, the jab keeps coming up that "real programmers" write in C, and that C is so much faster because it's "close to the machine." Leaving the former assertion for another post, what is special about C that allows it to be faster than other languages? Or put ano...
What is a rune?
...ich is identical to ASCII in that range. Furthermore, 32 is in fact the offset between the uppercase and lowercase codepoint of the character. So by adding 32 to 'A', you get 'a' and vice versa.
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预编译头文件来自编译器的早期版本，或者预编译头为 C++ 而在 C 中使用它(...
预编译头文件来自编译器的早期版本，或者预编译头为 C++ 而在 C 中使用它(或相反)现象&原因：当 Visual C++ 项目启用了预编译头 (Precompiled header) 功能时，如果项目中同时混合有 .c 和 .cpp 源文件，则可能...现象&原因：
当 Visual C++...
c/c++如何判断指针无效？如NULL,0xcccccccc,0xfeeefeee,野指针等 - C/C++ -...
c/c++如何判断指针无效？如NULL,0xcccccccc,0xfeeefeee,野指针等c c++如何判断指针无效？不仅仅是NULL的判断，有时由于指针释放没有赋NULL，指针会变成野指针或诸如0xcccccccc,0xfeeefeee形式的无效指针，...c/c++如何判断指针无效？不仅仅是N...
Format SQL in SQL Server Management Studio
...s, OUTPUT clauses, and other finicky stuff.
The SSMS Add-in allows you to set your own hotkey (default is Ctrl-K, Ctrl-F, to match Visual Studio), and formats the entire script or just the code you have selected/highlighted, if any. Output formatting is customizable.
In SSMS 2008 it combines nicel...
Show the progress of a Python multiprocessing pool imap_unordered call?
I have a script that's successfully doing a multiprocessing Pool set of tasks with a imap_unordered() call:
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ssl证书申请报错：challenge = [c for c in authorization[\'challenges\']...
ssl证书申请报错：challenge = [c for c in authorization['challenges'] if c['type'] == "http-01"][0] IndexError: list index out of rangechallenge-list-index-out-of-range使用acme-tiny申请ssl证书时报错：challenge = [c for c in authorization[& 39;challenges& 39;] if c[& 39;type& 39;] == ...
python setup.py uninstall
I have installed a python package with python setup.py install .
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Appending a vector to a vector [duplicate]
Assuming I have 2 standard vectors:
4 Answers
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