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How come a non-const reference cannot bind to a temporary object?
...ct,
which function getx() returns? Clearly, this is prohibited by C++ Standard
but I am interested in the purpose of such restriction, not a reference to the standard.
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What is the difference between assert, expect and should in Chai?
What is the difference between assert , expect and should , and when to use what?
2 Answers
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How to check certificate name and alias in keystore files?
I have a bunch of .keystore files and need to find one with specific CN and alias. Is there a way to do it with keytool, jarsigner or some other tool? I found a way to check if specific keystore was used to sign a specific apk, but I also need to get the alias and certificate name in each of the fil...
Ternary operator is twice as slow as an if-else block?
... answer this question, we'll examine the assembly code produced by the X86 and X64 JITs for each of these cases.
X86, if/then
32: foreach (int i in array)
0000007c 33 D2 xor edx,edx
0000007e 83 7E 04 00 cmp dword ptr [esi+4],0
00000082 ...
Android Log.v(), Log.d(), Log.i(), Log.w(), Log.e() - When to use each one?
... places like inside a catch statement. You know that an error has occurred and therefore you're logging an error.
Log.w: Use this when you suspect something shady is going on. You may not be completely in full on error mode, but maybe you recovered from some unexpected behavior. Basically, use this ...
How to create circle with Bézier curves?
We have a start point (x, y) and a circle radius. There also exists an engine that can create a path from Bézier curve points.
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Does anyone still use [goto] in C# and if so why? [closed]
I was wondering whether anyone still uses the "goto" keyword syntax in C# and what possible reasons there are for doing so.
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Push local Git repo to new remote including all branches and tags
I have a local Git repo that I would like to push to a new remote repo (brand new repo set up on Beanstalk, if that matters).
My local repo has a few branches and tags, and I would like to keep all of my history.
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Test whether a glob has any matches in bash
...compgen -G "<glob-pattern>"
Escape the pattern or it'll get pre-expanded into matches.
Exit status is:
1 for no-match,
0 for 'one or more matches'
stdout is a list of files matching the glob.
I think this is the best option in terms of conciseness and minimizing potential side effect...
python multithreading wait till all threads finished
...t1.join()
t2.join()
t3.join()
Thus the main thread will wait till t1, t2 and t3 finish execution.
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