大约有 43,000 项符合查询结果（耗时：0.0499秒） [XML]
Scala Doubles, and Precision
...likely, I'd say. Anything involving grids or finance can require rounding and also performance.
– Rex Kerr
Jun 19 '12 at 20:33
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Aren't promises just callbacks?
...d error callback for all occurred exceptions.
Not to mention having to convert things to promises.
That's quite trivial actually with good promise libraries, see How do I convert an existing callback API to promises?
s...
What is the difference between sigaction and signal?
I was about to add an extra signal handler to an app we have here and I noticed that the author had used sigaction() to set up the other signal handlers. I was going to use signal() . To follow convention I should use sigaction() but if I was writing from scratch, which should I choose?
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Start thread with member function
...o construct a std::thread with a member function that takes no arguments and returns void . I can't figure out any syntax that works - the compiler complains no matter what. What is the correct way to implement spawn() so that it returns a std::thread that executes test() ?
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Using switch statement with a range of value in each case?
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This works great and is simple. Also if you want to select numbers not in the range all you need is if(!isBetween... , good job.
– a54studio
Jul 20 '13 at 13:43
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Spring .properties file: get element as an Array
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You can try to get them as list of integer and then converts them @Value( "${base.module.elementToSearch}") private List<Integer> elementToSearch;
– Gal Bracha
Mar 21 '12 at 16:17
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For loop example in MySQL
...ile v_counter < v_max do
insert into foo (val) values ( floor(0 + (rand() * 65535)) );
set v_counter=v_counter+1;
end while;
commit;
end #
delimiter ;
call load_foo_test_data();
select * from foo order by id;
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How to read the content of a file to a string in C?
...least lines of code, however you want to interpret it) to open a file in C and read its contents into a string (char*, char[], whatever)?
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How to create ENUM type in SQLite?
I need to convert a table from MySQL to SQLite, but I can't figure out how to convert an enum field, because I can't find ENUM type in SQLite.
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How do I make a reference to a figure in markdown using pandoc?
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This only helps if you convert to TeX but not if you also want to create HTML from the same Markdown source.
– Jakob
Aug 2 '12 at 8:33
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