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How to assign a Git SHA1's to a file without Git?
...uteHash
|> Array.fold (fun acc e ->
let t = System.Convert.ToString(e, 16)
if t.Length = 1 then acc + "0" + t else acc + t)
""
/// Calculates the SHA1 like git
let calcGitSHA1 (text:string) =
let s = text.Replace("\r\n","\n")
sprintf "blob %d%c%...
How to store CGRect values in NSMutableArray?
...
Store string in array.and then get back string and convert that in CGRect back as per the need.
CGRect rect = CGRectMake( 5, 5, 40, 30 );
NSString* rectAsString = NSStringFromCGRect( rect );
NSMutableArray* array = [NSMutableArray mutableArray];
[array addObject:rectAsString]...
Are members of a C++ struct initialized to 0 by default?
...e to add proper initalization to those constructors
struct Snapshot {
int x;
double y;
Snapshot():x(0),y(0) { }
// other ctors / functions...
};
Will initialize both x and y to 0. Note that you can use x(), y() to initialize them disregarding of their type: That's then value initi...
Functional programming - is immutability expensive? [closed]
... are a few misconceptions flying around here, I’d like to clarify some points.
The “in-place” quicksort isn’t really in-place (and quicksort is not by definition in-place). It requires additional storage in the form of stack space for the recursive step, which is in the order of O(log n) i...
C++ equivalent of StringBuffer/StringBuilder?
...e stream
ss << 4.5 << ", " << 4 << " whatever";
//convert the stream buffer into a string
std::string str = ss.str();
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Is there an expression for an infinite generator?
...
for x in iter(int, 1): pass
Two-argument iter = zero-argument callable + sentinel value
int() always returns 0
Therefore, iter(int, 1) is an infinite iterator. There are obviously a huge number of variations on this particular theme (...
Android: install .apk programmatically [duplicate]
...I solved the problem. I made mistake in setData(Uri) and setType(String).
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(new File(Environment.getExternalStorageDirectory() + "/download/" + "app.apk")), "application/vnd.android.package-archive");
intent.setFlags(I...
HashSet vs LinkedHashSet
... the LinkedHashSet uses to construct the base class:
public LinkedHashSet(int initialCapacity, float loadFactor) {
super(initialCapacity, loadFactor, true); // <-- boolean dummy argument
}
...
public LinkedHashSet(int initialCapacity) {
super(initialCapacity, .75f, true); ...
Pros and Cons of Interface constants [closed]
PHP interfaces allow the definition of constants in an interface, e.g.
2 Answers
2
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How to store arrays in MySQL?
...s and JOIN them in your queries.
For example:
CREATE TABLE person (
`id` INT NOT NULL PRIMARY KEY,
`name` VARCHAR(50)
);
CREATE TABLE fruits (
`fruit_name` VARCHAR(20) NOT NULL PRIMARY KEY,
`color` VARCHAR(20),
`price` INT
);
CREATE TABLE person_fruit (
`person_id` INT NOT NULL,
`fruit_name` VAR...