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How can I do test setup using the testing package in Go
...n goroutine and can do whatever setup and
teardown is necessary around a call to m.Run. It should then call
os.Exit with the result of m.Run
It took me some time to figure out that this means that if a test contains a function func TestMain(m *testing.M) then this function will be called inste...
How to pass objects to functions in C++?
...side, in which case you pass by non-const reference
the function should be callable without any argument, in which case you pass by pointer, so that users can pass NULL/0/nullptr instead; apply the previous rule to determine whether you should pass by a pointer to a const argument
they are of built-...
How costly is .NET reflection?
... But that depends on what you're trying to do.
I use reflection to dynamically load assemblies (plugins) and its performance "penalty" is not a problem, since the operation is something I do during startup of the application.
However, if you're reflecting inside a series of nested loops with refl...
Performance difference for control structures 'for' and 'foreach' in C#
...neric.List`1/Enumerator<object> V_1)
IL_0000: ldarg.0
IL_0001: callvirt instance valuetype [mscorlib]System.Collections.Generic.List`1/Enumerator<!0> class [mscorlib]System.Collections.Generic.List`1<object>::GetEnumerator()
IL_0006: stloc.1
.try
{
IL_0007: br.s...
z-index not working with position absolute
...p someone.
If you are trying to display the contents of the container outside of the boundaries of the container, make sure that it doesn't have overflow:hidden, otherwise anything outside of it will be cut off.
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Why is there an unexplainable gap between these inline-block div elements? [duplicate]
...espace from the markup, or alternatively floating the elements and thus avoiding the space generated by inline elements.
Method 3 - Set the parent element to display: flex
In some cases, you can also set the display of the parent element to flex. (example)
This effectively removes the spaces betw...
java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare();
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How do i call a method in that Activity, which i am making a toast message in with this code?
– lxknvlk
Mar 22 '15 at 9:20
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Cache Invalidation — Is there a General Solution?
...ord into the data structure returned by transformData()) and then when you call transformData() again, check the last modified time of the file.
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Short circuit Array.forEach like calling break
... 2;
});
This works because some returns true as soon as any of the callbacks, executed in array order, return true, short-circuiting the execution of the rest.
some, its inverse every (which will stop on a return false), and forEach are all ECMAScript Fifth Edition methods which will need t...
C++0x has no semaphores? How to synchronize threads?
...Maxim I'm sorry, I don't think you're right. sem_wait and sem_post only syscall on contention too (check sourceware.org/git/?p=glibc.git;a=blob;f=nptl/sem_wait.c ) so the code here ends up duplicating the libc implementation, with potentially bugs. If you intend portability on any system, it might b...