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The static keyword and its various uses in C++
The keyword static is one which has several meanings in C++ that I find very confusing and I can never bend my mind around how its actually supposed to work.
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How to search through all Git and Mercurial commits in the repository for a certain string?
...lking the commit ancestry chain, walk reflog entries from
the most recent one to older ones.
So you could do this to find a particular string in a commit message that is dangling:
git log -g --grep=search_for_this
Alternatively, if you want to search the changes for a particular string, you c...
How important is the order of columns in indexes?
...t not for B=@b, for C=@c norB=@b AND C=@c. The case A=@a AND C=@c is mixed one, as in the A=@a portion will use the index, but the C=@c not (the query will scan all B values for A=@a, will not 'skip' to C=@c). Other database systems have the so called 'skip scan' operator that can take some advantag...
Why can't radio buttons be “readonly”?
...ript, I suddenly have two fields with the same name, so I have to clean up one of them. Or use the hidden one for real and have the radio button just set the value of the hidden field. Ether way, it's just a bit more cumbersome than I'd like a radiobutton to be. Your second solution, although I don...
Android View.getDrawingCache returns null, only null
Would anyone please try to explain to me why
10 Answers
10
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Git error on commit after merge - fatal: cannot do a partial commit during a merge
... you try a message that includes spaces without quotes. Eg. [git commit -m one two three] Correct: [git commit -m "one two three"]
– Skychan
Jun 20 '18 at 21:23
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String literals: Where do they go?
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There is no one answer to this. The C and C++ standards just say that string literals have static storage duration, any attempt at modifying them gives undefined behavior, and multiple string literals with the same contents may or may no...
How to create a MySQL hierarchical recursive query
... if the pv string would for some reason yield a falsy value.
All in all, one may find these assumptions too risky to rely on. The documentation warns:
you might get the results you expect, but this is not guaranteed [...] the order of evaluation for expressions involving user variables is und...
Is it better practice to use String.format over string Concatenation in Java?
... automatically only if you are not in a loop. If the concatenation is all done on a single line it's the same as using '+', but if you use myString += "morechars"; or myString += anotherString; on multiple lines you'll notice that more than one StringBuilder might be created, so using "+" is not alw...
TDD vs. Unit testing [closed]
...was not creating any unit tests before. This feels like a nice stepping stone to full TDD.
– Walter
Nov 16 '09 at 17:01
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