halfelf

template <class T>
constexpr std::string_view type_name() {
#ifdef __clang__
    std::string_view p = __PRETTY_FUNCTION__;
    return std::string_view(p.data() + 34, p.size() - 34 - 1);
#elif defined(__GNUC__)
    std::string_view p = __PRETTY_FUNCTION__;
#  if __cplusplus < 201402
    return std::string_view(p.data() + 36, p.size() - 36 - 1);
#  else

peterspackman

# Sample toolchain file for building for Windows from an Ubuntu Linux system.
#
# Typical usage:
#    *) install cross compiler: `sudo apt-get install mingw-w64`
#    *) cd build
#    *) cmake -DCMAKE_TOOLCHAIN_FILE=~/mingw-w64-x86_64.cmake ..
# This is free and unencumbered software released into the public domain.

set(CMAKE_SYSTEM_NAME Windows)
set(TOOLCHAIN_PREFIX x86_64-w64-mingw32)

jcracknell

def urldecode:
  def unhex:
    if 48 <= . and . <= 57 then . - 48 elif 65 <= . and . <= 70 then . - 55 else . - 87 end;

  def bytes:
    def loop($i):
      if $i >= length then empty else 16 * (.[$i+1] | unhex) + (.[$i+2] | unhex), loop($i+3) end;
    [loop(0)];

  def codepoints:

daniel-j-h

#include <cstdlib>
#include <iostream>
#include <initializer_list>

#define expand_pack(...) (void) std::initializer_list<int>{((void)(__VA_ARGS__), 0)...};

template <typename... Iter>
void increment_all(Iter&... iters) {
  expand_pack(++iters);
}

coderofsalvation

# updates an environment variable of a running process (needs sudo)
# example: sudo export_pid <variable=value> <pid>

export_process(){
  script=/tmp/.gdb.$2
  echo -e "attach $2\ncall putenv (\"$1\")\ndetach\n" > $script
  gdb -q -batch -x $script &>/dev/null
  rm $script
}

andref

#include <QtCore>
#include <QtDebug>

QVariant call(QObject* object, QMetaMethod metaMethod, QVariantList args)
{
    // Convert the arguments

    QVariantList converted;

    // We need enough arguments to perform the conversion.