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The maximum value for an int type in Go
...binary: all ones
// Shift the binary number to the right (i.e. divide by two)
// to change the high bit to 0
MaxInt = int(MaxUint >> 1) // binary: all ones except high bit
// Perform another bitwise NOT to change the high bit to 1 and
// all other bits to 0
MinI...
How do I get the number of days between two dates in JavaScript?
...es on the fact that you can get the elapsed milliseconds between two dates by subtracting them, which coerces them into their primitive number value (milliseconds since the start of 1970).
// new Date("dateString") is browser-dependent and discouraged, so we'll write
// a simple parse functio...
rsync: difference between --size-only and --ignore-times
... stamp, even though they weren't really modified yesterday, and rsync will by default end up copying all those files, and updating the timestamp to yesterday too. --size-only may be your friend in this case (modulo the example above).
--ignore-times says to compare the files regardless of whether t...
@OneToMany List vs Set difference
...list, if there is no index column specified, will just be handled as a bag by Hibernate (no specific ordering).
One notable difference in the handling of Hibernate is that you can't fetch two different lists in a single query. For example, if you have a Person entity having a list of contacts and ...
Swift 编程语言入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... literal和模块，允许现代语言的框架无需深入即可使用。(by gashero)感谢这些基础工作，才使得可以在Apple软件开发中引入新的编程语言。
Objective-C开发者会感到Swift的似曾相识。Swift采用了Objective-C的命名参数和动态对象模型。提...
Different floating point result with optimization enabled - compiler bug?
...les.
In x86_64 builds compilers use SSE registers for float and double by default, so that no extended precision is used and this issue doesn't occur.
gcc compiler option -mfpmath controls that.
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What does iota of std::iota stand for?
...(inventor of APL) said this:
For example, the integer function denoted by ι produces a vector of the first n integers when applied to the argument n, …
That ι is the lower-case Greek letter iota.
In the quote above, I typed ι, U+03B9, “GREEK SMALL LETTER IOTA”, but Unicode actually h...
Entity Framework and SQL Server View
...S. The changes you made in the designer will be preserved and not affected by the refresh.
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No @XmlRootElement generated by JAXB
...
To tie together what others have already stated or hinted at, the rules by which JAXB XJC decides whether or not to put the @XmlRootElement annotation on a generated class are non trivial (see this article).
@XmlRootElement exists because the JAXB runtime requires certain information in order to...
Choosing the default value of an Enum type without having to change values
...lt value for an int be 42. Think how daft that sounds... Memory is blanked by the runtime before you get it, enums are structs remember
– ShuggyCoUk
Feb 10 '09 at 10:15
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