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Is pass-by-value a reasonable default in C++11?
...advantage that the caller can use foo like so:
T lval;
foo(lval); // copy from lvalue
foo(T {}); // (potential) move from prvalue
foo(std::move(lval)); // (potential) move from xvalue
and only minimal work is done. You'd need two overloads to do the same with references, void foo(T const&); a...
“git diff” does nothing
...e, but "git diff" does nothing. To be safe, I removed external diff tools from my .gitconfig file. This was installed via MacPorts and is the lates version (1.7.2.2).
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How do I achieve the theoretical maximum of 4 FLOPs per cycle?
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Furthermore, I take no responsibility for whatever damage that may result from running this code.
Notes:
This code is optimized for x64. x86 doesn't have enough registers for this to compile well.
This code has been tested to work well on Visual Studio 2010/2012 and GCC 4.6.ICC 11 (Intel Compile...
Better naming in Tuple classes than “Item1”, “Item2”
...t first, int second)>. I had to download the System.ValueTuple package from NuGet to get it to work in Visual Studio 2017.
– Matt Davis
Mar 25 '17 at 23:19
18
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Get time difference between two dates in seconds
...r between 1 and 31 (not zero based) as opposed to the epoch time you'd get from calling the getTime() method, representing the number of milliseconds since January 1st 1970, 00:00
Rant
Depending on what your date related operations are, you might want to invest in integrating a library such as date...
PHP file_get_contents() and setting request headers
...user_agent', 'SomeBrowser v42.0.4711'); go to user-agent.me and copy yours from there.. or edit php.ini to change it globally
– jaggedsoft
Oct 28 '16 at 23:29
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Check to see if python script is running
... can write a simple shell script to check it for you using the return code from ps.
ps up `cat /tmp/mydaemon.pid ` >/dev/null && echo "Running" || echo "Not running"
For extra credit, you can use the atexit module to ensure that your program cleans up its pidfile under any circumstance...
How to make a variadic macro (variable number of arguments)
...VA_ARGS__) does the job the portable way; the fmt parameter can be omitted from the definition.
– alecov
Jun 11 '12 at 20:14
4
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Click outside menu to close in jquery
... business requirements. The menu becomes hidden again after you mouse away from it.
15 Answers
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Does Python support short-circuiting?
...72]: name
Out[172]: '<Unkown>'
In other words, if the return value from raw_input is true (not an empty string), it is assigned to name (nothing changes); otherwise, the default '<unknown>' is assigned to name.
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