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Comparing two byte arrays in .NET
...note the creator of the unsafe answer notes a difference of 7x slow, as opposed to 50x slower (the unsafe method's speed also depends on the alignment of data). In the rare cases where these numbers matter, P/Invoke is even faster.
– Selali Adobor
Sep 17 '14 at...
How do I return multiple values from a function? [closed]
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Named tuples were added in 2.6 for this purpose. Also see os.stat for a similar builtin example.
>>> import collections
>>> Point = collections.namedtuple('Point', ['x', 'y'])
>>> p = Point(1, y=2)
>>> p.x, p.y
1 2
>>> p[0...
How to print the ld(linker) search path
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You can do this by executing the following command:
ld --verbose | grep SEARCH_DIR | tr -s ' ;' \\012
gcc passes a few extra -L paths to the linker, which you can list with the following command:
gcc -print-search-dirs | sed '/^lib/b 1;d;:1;s,/[^/.][^/]*/\.\./,/,;t 1;s,:[^=]*=,:;,;s...
Create a Path from String in Java7
... I suggest to use File.separarator instead of taking care of the current OS. E.g. "/tmp/foo" is File.separator+"tmp"+File.separator+"foo"
– mat_boy
Sep 12 '13 at 7:20
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How to generate a random integer number from within a range
This is a follow on from a previously posted question:
11 Answers
11
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What is the difference between Trap and Interrupt?
...'s also the usual way to invoke a kernel routine (a system call) because those run with a higher priority than user code. Handling is synchronous (so the user code is suspended and continues afterwards). In a sense they are "active" - most of the time, the code expects the trap to happen and relies ...
Can I have multiple Xcode versions installed?
Is it possible to have more than one version of Xcode installed at the same time?
12 Answers
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Any reason to clean up unused imports in Java, other than reducing clutter?
... the list interface.
In Eclipse you can always use a shortcut (depends on OS - Win: Ctrl + SHIFT + O and Mac: COMMAND + SHIFT + O) to organize the imports. Eclipse then cleans up the import section removes all the stale imports etc. If you are needing a imported thing again eclipse will add them au...
How to extract text from a string using sed?
...]] instead. You will also need to escape the + or use the -r switch (-E on OS X).
Note that [0-9] works as well for Arabic-Hindu numerals.
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Can I compile all .cpp files in src/ to .o's in obj/, then link to binary in ./?
... $@ $<
Automatic dependency graph generation
A "must" feature for most make systems. With GCC in can be done in a single pass as a side effect of the compilation by adding -MMD flag to CXXFLAGS and -include $(OBJ_FILES:.o=.d) to the end of the makefile body:
CXXFLAGS += -MMD
-include $(OB...