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How to express infinity in Ruby?
...own constant using the following*:
I've checked that in Ruby 1.8.6, 1.8.7, and 1.9.2 you have Float.infinite?.
PositiveInfinity = +1.0/0.0
=> Infinity
NegativeInfinity = -1.0/0.0
=> -Infinity
CompleteInfinity = NegativeInfinity..PositiveInfinity
=> -Infinity..Infinity
*I've verified ...
Difference between as.POSIXct/as.POSIXlt and strptime for converting character vectors to POSIXct/PO
...character vectors to datetime classes. I often see 2 methods, the strptime and the as.POSIXct/as.POSIXlt methods. I looked at the 2 functions but am unclear what the difference is.
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Python Regex instantly replace groups
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Way more clear than the doc! Did not understand how group was working with this one. They should add such example.
– Y0da
Apr 26 '18 at 21:46
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Splitting on last delimiter in Python string?
...lways returns a fixed number of elements (prefix, delimiter & postfix) and is faster for the single split case.
Demo:
>>> s = "a,b,c,d"
>>> s.rsplit(',', 1)
['a,b,c', 'd']
>>> s.rsplit(',', 2)
['a,b', 'c', 'd']
>>> s.rpartition(',')
('a,b,c', ',', 'd')
Bot...
What is string_view?
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The purpose of any and all kinds of "string reference" and "array reference" proposals is to avoid copying data which is already owned somewhere else and of which only a non-mutating view is required. The string_view in question is one such pro...
Unittest setUp/tearDown for several tests
... is fired at the beginning/end of a scenario of tests? The functions setUp and tearDown are fired before/after every single test.
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What is the difference between Trap and Interrupt?
What is the difference between Trap and Interrupt?
9 Answers
9
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Required tags not present when using Delphi XML Data Binding Wizard
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Not sure to understand but maybe what you are looking for is : use="optional"
<xs:element name="MyReport" type="MyReportType" />
<xs:complexType name="MyReportType">
<xs:all>
<xs:element name="Header" type="HeaderTyp...
How do I activate C++ 11 in CMake?
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CMake 3.1 introduced the CMAKE_CXX_STANDARD variable that you can use. If you know that you will always have CMake 3.1 available, you can just write this in your top-level CMakeLists.txt file, or put it right before any new target is defined:
set (CMAKE_CXX_ST...
AJAX post error : Refused to set unsafe header “Connection”
... would be possible to request that it not tie up the persistent connection and cause (for example) an unnecessary 5 second delay (where 5 seconds is the keep-alive time).
– doug65536
Dec 15 '13 at 6:19
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