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What makes Lisp macros so special?
...Lisp macros are the only way to go. As a busy developer, working on other platforms, I have not had the privilege of using Lisp macros. As someone who wants to understand the buzz, please explain what makes this feature so powerful.
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Differences between Oracle JDK and OpenJDK
...s:
OpenJDK is an open source implementation of the Java Standard Edition platform with contribution from Oracle and the open Java community.
OpenJDK is released under license GPL v2 wherein Oracle JDK is licensed under Oracle Binary Code License Agreement.
Actually, Oracle JDK’s build process bu...
Build an iOS app without owning a mac? [closed]
...Check this iOS requirements for Xamarin developer.xamarin.com/guides/cross-platform/getting_started/…
– Jaider
Mar 3 '17 at 19:54
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What are the differences between .so and .dylib on osx?
...lt values unless something is very explicit. e.g. Compilers will use there platform specific shared libray extension when the -l<lib> flag is used (actual flag may very across compilers).
– Martin York
Feb 26 '10 at 16:43
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Retrieving the last record in each group - MySQL
... Please link to a dump of your tables so that people can test it on their platforms.
– Pacerier
Feb 3 '15 at 3:44
3
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What does the Q_OBJECT macro do? Why do all Qt objects need this macro?
...his is what Q_OBJECT expands into on gcc on Linux. Be aware, this might be platform dependent and it might change depending on the version of QT. You can see it is not just a tag for the moc compiler.
# 11 "mainwindow.hh"
#pragma GCC diagnostic push
# 11 "mainwindow.hh"
# 11 "mainwindow.hh"
#pragm...
Should I use pt or px?
...int sizes are dead-accurate on paper. For the best cross-browser and cross-platform results while printing pages, set up a print stylesheet and size all fonts with point sizes.
For good measure, the reason we don't use point sizes for screen display (other than it being absurd), is that the cross-...
How to sort an array in Bash
...ts.
(The exact thresholds will depend on your specific input, machine, and platform.)
The reason it is fast is that it avoids Bash loops.
printf '%s\n' "${a_in[@]}" | sort performs the sorting (lexically, by default - see sort's POSIX spec):
"${a_in[@]}" safely expands to the elements of array ...
How do you use the “WITH” clause in MySQL?
...one thing that can't be done is the recursive functionality of CTEs in all platforms that support it, that was my point.
– Hogan
Feb 10 '13 at 23:46
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How much overhead does SSL impose?
...s now present in many CPUs, which makes AES encryption really fast on such platforms.]
Connection establishment, however, is different. Depending on the implementation (e.g. support for TLS false start), it will add round-trips, which can cause noticable delays. Additionally, expensive crypto takes...