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How to iterate through all git branches using bash script
...rmat='%(refname:short)'
iterate through all git branches: mapfile -t -C my_callback -c 1 < <( get_branches )
example:
my_callback () {
INDEX=${1}
BRANCH=${2}
echo "${INDEX} ${BRANCH}"
}
get_branches () {
git branch --all --format='%(refname:short)'
}
# mapfile -t -C my_callback -c 1...
How do I execute a command and get the output of the command within C++ using POSIX?
...std::array<char, 128> buffer;
std::string result;
std::unique_ptr<FILE, decltype(&pclose)> pipe(popen(cmd, "r"), pclose);
if (!pipe) {
throw std::runtime_error("popen() failed!");
}
while (fgets(buffer.data(), buffer.size(), pipe.get()) != nullptr) {
...
Parse JSON in C#
...e recursion.
Properties (in 2.0) should be defined like such :
string _unescapedUrl; // <= private field
[DataMember]
public string unescapedUrl
{
get { return _unescapedUrl; }
set { _unescapedUrl = value; }
}
You have a private field and then you return the value of that field i...
What does FETCH_HEAD in Git mean?
...
FETCH_HEAD is a short-lived ref, to keep track of what has just been fetched from the remote repository. git pull first invokes git fetch, in normal cases fetching a branch from the remote; FETCH_HEAD points to the tip of this bra...
How should one use std::optional?
...
The simplest example I can think of:
std::optional<int> try_parse_int(std::string s)
{
//try to parse an int from the given string,
//and return "nothing" if you fail
}
The same thing might be accomplished with a reference argument instead (as in the following signature), b...
InputStream from a URL
...ncoder().encodeToString((user + ":" + passwd).getBytes(StandardCharsets.UTF_8));
Map<String,String> httpHeaders=new Map<>();
httpHeaders.put("Accept", "application/json");
httpHeaders.put("User-Agent", "myApplication");
httpHeaders.put("Authorization", "Ba...
Best XML Parser for PHP [duplicate]
...aram string $XML
* @return array
*/
function XMLtoArray($XML)
{
$xml_parser = xml_parser_create();
xml_parse_into_struct($xml_parser, $XML, $vals);
xml_parser_free($xml_parser);
// wyznaczamy tablice z powtarzajacymi sie tagami na tym samym poziomie
$_tmp='';
foreach ($val...
Variable number of arguments in C++?
...number of arguments in C you include stdarg.h. From that you'll get the va_list type as well as three functions that operate on it called va_start(), va_arg() and va_end().
#include<stdarg.h>
int maxof(int n_args, ...)
{
va_list ap;
va_start(ap, n_args);
int max = va_arg(ap, int...
Finding sum of elements in Swift array
...parameter:
extension Sequence {
func sum<T: AdditiveArithmetic>(_ keyPath: KeyPath<Element, T>) -> T { reduce(.zero) { $0 + $1[keyPath: keyPath] } }
}
Usage:
struct Product {
let id: String
let price: Decimal
}
let products: [Product] = [.init(id: "abc", price: 21.9),
...
Programmatically Determine a Duration of a Locked Workstation?
...SessionSwitch += new Microsoft.Win32.SessionSwitchEventHandler(SystemEvents_SessionSwitch);
void SystemEvents_SessionSwitch(object sender, Microsoft.Win32.SessionSwitchEventArgs e)
{
if (e.Reason == SessionSwitchReason.SessionLock)
{
//I left my desk
}
else if (e.Reason == ...