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Difference between Mock / Stub / Spy in Spock test framework
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96
Attention: I am going to oversimplify and maybe even slightly falsify in the upcoming paragraph...
SparseArray vs HashMap
...<V> values;
}
Class = 12 + 8 * 4 = 48 bytes
Entry = 32 + 16 + 16 = 64 bytes
Array = 20 + 1000 * 64 = 64024 bytes
Total = 64,136 bytes
Source: Android Memories by Romain Guy from slide 90.
The numbers above are the amount of memory (in bytes) allocated on heap by JVM.
They may vary dependin...
Forward an invocation of a variadic function in C
...Rosenfield
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5
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What is the difference between Int and Integer?
...ay
recognise the "bignum" type here.
"Int" is the more common 32 or 64 bit
integer. Implementations vary,
although it is guaranteed to be at
least 30 bits.
Source: The Haskell Wikibook. Also, you may find the Numbers section of A Gentle Introduction to Haskell useful.
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Comparing two byte arrays in .NET
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akuaku
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Generate a Hash from string in Javascript
...ained here, we can extend the hash bit size using this trick:
function hash64(str) {
var h1 = hash32(str); // returns 32 bit (as 8 byte hex string)
return h1 + hash32(h1 + str); // 64 bit (as 16 byte hex string)
}
Use it with care and don't expect too much though.
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How to style a checkbox using CSS
...e="checkbox"]:checked:after {
background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAcAAAAHCAQAAABuW59YAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAIGNIUk0AAHolAACAgwAA+f8AAIDpAAB1MAAA6mAAADqYAAAXb5JfxUYAAAB2SURBVHjaAGkAlv8A3QDyAP0A/QD+Dam3W+kCAAD8APYAAgTVZaZCGwwA5wr0AvcA+Dh+7UX/x24AqK3Wg/8nt6...
Get Unix Epoch Time in Swift
...-bit numbers won't be usable for the Unix timestamp and they'll have to be 64-bit.
let seconds = Date().timeIntervalSince1970
let milliseconds = Date().timeIntervalSince1970 * 1_000
let microseconds = Date().timeIntervalSince1970 * 1_000_000
An extension:
extension Date {
var unixTimestamp: ...
Why is the C++ STL is so heavily based on templates? (and not on *interfaces*)
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AraKAraK
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How do I print a list of “Build Settings” in Xcode project?
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ARCHS "armv6 armv7"
ARCHS_STANDARD_32_64_BIT "armv6 armv7"
ARCHS_STANDARD_32_BIT "armv6 armv7"
ARCHS_UNIVERSAL_IPHONE_OS armv7
AVAILABLE_PLATFORMS "iphonesimulator macosx iphoneos"
BUILD_C...