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How to make my custom type to work with “range-based for loops”?
...e.
A practical example of why this is useful is that your end iterator can read "check your char* to see if it points to '0'" when == with a char*. This allows a C++ range-for expression to generate optimal code when iterating over a null-terminated char* buffer.
struct null_sentinal_t {
template...
How should I have explained the difference between an Interface and an Abstract class?
... @HiradNikoo Sorry for the late comment, but I just stumbled on this thread. You can also regard class inheritance as IS-A relationship, whereas interfaces signify "has a certain functionality".
– Alexander Jank
Dec 17 '17 at 8:53
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Why isn't SQL ANSI-92 standard better adopted over ANSI-89?
...rnal representation before optimizing or executing the query, so the human-readable syntax makes no difference.
I also try to evangelize the SQL-92 syntax. Sixteen years after it was approved, it's about time people start using it! And all brands of SQL database now support it, so there's no reas...
presentViewController:animated:YES view will not appear until user taps again
...pit, I drops into it and feeling hurt badly.
– OpenThread
Oct 29 '15 at 8:21
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OMG, this is so hi...
Ternary operator is twice as slow as an if-else block?
I read everywhere that ternary operator is supposed to be faster than, or at least the same as, its equivalent if - else block.
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How to recover stashed uncommitted changes
...those same changes in your work-directory now.
This is true even if you already have some changes. The apply command is happy to apply a stash to a modified working directory (or at least, to try to apply it). You can, for instance, do this:
git stash apply stash # apply top of stash stack
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Please explain the exec() function and its family
...gument is the name of a file that is to be executed.
For more information read exec(3) man page:
man 3 exec # if you are running a UNIX system
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What are the differences in die() and exit() in PHP?
...stops and exit for all other scenarios. It just seems to flow better when reading the code.
– nextgentech
Jan 11 '14 at 4:29
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“Eliminate render-blocking CSS in above-the-fold content”
...ly successful. Things like deferring scripts worked beautifully, since I already had an in-house version of jQuery's .ready() to defer scripts until the page had loaded fully, all I had to do was inline that particular function and move the full scripts to the end of the page. That worked great.
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When should I use Lazy?
...s the cost at first use and may use some locking overhead (or sacrifices thread safety if not) to do so. Thus, it should be chosen carefully and not used unless needed.
– James Michael Hare
Jun 11 '13 at 20:23
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