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Overloading Macro on Number of Arguments
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Simple as:
#define GET_MACRO(_1,_2,_3,NAME,...) NAME
#define FOO(...) GET_MACRO(__VA_ARGS__, FOO3, FOO2)(__VA_ARGS__)
So if you have these macros:
FOO(World, !) # expands to FOO2(World, !)
FOO(foo,bar,baz) # expands to FOO3(foo,bar,baz)
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Can someone explain the traverse function in Haskell?
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121
traverse is the same as fmap, except that it also allows you to run effects while you're rebui...
Scala Doubles, and Precision
...e or round a Double? At one point in my code I would like a number like: 1.23456789 to be rounded to 1.23
12 Answers
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C# 5 async CTP: why is internal “state” set to 0 in generated code before EndAwait call?
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71
Okay, I finally have a real answer. I sort of worked it out on my own, but only after Lucian Wis...
Odd behavior when Java converts int to byte?
Mindboggling. Why is the output -124 ?
11 Answers
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Grep characters before and after match?
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187
3 characters before and 4 characters after
$> echo "some123_string_and_another" | grep -o ...
DataTable: Hide the Show Entries dropdown but keep the Search box
...es dropdown but keep the Search box in DataTable? I want to always display 10 rows with pagination at the bottom along with search box but do not want to display the Show entries dropdown.
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What does Bump Version stand for?
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271
It means to increment the version number to a new, unique value.
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MySQL's now() +1 day
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461
You can use:
NOW() + INTERVAL 1 DAY
If you are only interested in the date, not the date and ...