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Best way to make Java's modulus behave like it should with negative numbers?
...d not the exact mod operator, and your x's do not cluster near 0, the following will be even faster, as there is more instruction level parallelism and the slow % computation will occur in parallel with the other parts as they do not depend on its result.
return ((x >> 31) & (n - 1)) + (...
Performance of FOR vs FOREACH in PHP
...ify inline)...
As for the iterators, foreach is equivalent to:
$it->rewind();
while ($it->valid()) {
$key = $it->key(); // If using the $key => $value syntax
$value = $it->current();
// Contents of loop in here
$it->next();
}
As far as there being faster w...
How do you get assembler output from C/C++ source in gcc?
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The following command line is from Christian Garbin's blog
g++ -g -O -Wa,-aslh horton_ex2_05.cpp >list.txt
I ran G++ from a DOS window on Win-XP, against a routine that contains an implicit cast
c:\gpp_code>g++ -g -O -Wa,-a...
CMake: Print out all accessible variables in a script
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Using the get_cmake_property function, the following loop will print out all CMake variables defined and their values:
get_cmake_property(_variableNames VARIABLES)
list (SORT _variableNames)
foreach (_variableName ${_variableNames})
message(STATUS "${_variableName}=${...
Why do stacks typically grow downwards?
...ection strategy story. Makes some sense that text segments are laid out growing upwards-- programmers of yore had somewhat more direct contact with dealing with the implications of that than the stack.Thanks paxdiablo. The pointer to the set of alternative forms of stack implementations is also supe...
Function overloading in Javascript - Best practices
...ut it’s short, concise, and uses an obscure JavaScript feature – so it wins in my book." :-)
– Frerich Raabe
May 31 '18 at 6:44
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What is mutex and semaphore in Java ? What is the main difference?
...efers to the monitor built into every object, which is also similar to the Win32 object called a Mutex. The same applies to a ReentrantLock. All of these are recursive. I am not aware of any "real-world" examples of non-recursive mutexes (I have seen them only in textbooks) so I did not consider ...
clang: how to list supported target architectures?
...en do a
$ llc --version | grep Default
Default target: x86_64-apple-darwin16.1.0
or alternatively:
$ llvm-config --host-target
x86_64-apple-darwin16.0.0
or
$ clang -v 2>&1 | grep Target
Target: x86_64-apple-darwin16.1.0
Then you know how to target it when cross compiling anyway.
App...
Get value from JToken that may not exist (best practices)
...e sake of moving my code to a platform that has a better JSON parser (say, Win8 for example). So, for what I asked, yes, your code would be perfect.
– Paul Hazen
Mar 17 '12 at 23:27
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How to do a simple file search in cmd
... to quickly search for a file given its name or part of its name, from the windows command line (not power shell). This is similar to opening explorer and using the search box at the top.
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