jonwis

#include <array>
#include <algorithm>
#include <string_view>

// From https://medium.com/@vgasparyan1995/compile-time-merge-sort-c-bb0ace62cc23
constexpr auto sort(const auto& arr)
{
    auto result = arr;
    auto sortless = [](auto const& a, auto const& b) { return a.first < b.first; };
    std::sort(std::begin(result), std::end(result), sortless);

jonwis

#include <mutex>

struct guid { uint64_t id[2]; };
template<typename T> guid const& guid_of()
{
    return T::iid;
}

struct IUnknown {
    virtual uint32_t AddRef() = 0;

jonwis

// Opens a file by path name. Assumes the file is UTF-8 encoded. If the file
// has a BOM, it'll be skipped so the first access to the file is positioned
// correctly.
std::wifstream open_utf8_with_maybe_bom(std::filesystem::path const& path)
{
    std::wifstream ss;
    ss.imbue(std::locale(".utf-8"));
    ss.open(path);

    if (ss.good() && (ss.peek() == 0xFEFF))

jonwis

	/*
		Here's some powershell to run to generate this type

		cls
		$typeList = @(
			"UInt8",
			"UInt16",
			"UInt32",
			"UInt64",
			# "Int8", -- not a valid type

jonwis

#include <span>

template<typename T> struct bad_span
{
    bad_span() : m_data(nullptr), m_size(0) {}

    bad_span(std::initializer_list<T> value) :
        m_data(value.begin()),
        m_size(static_cast<uint32_t>(value.size()))
    {

jonwis

WINRT_EXPORT namespace winrt::param
{
    struct hstring
    {
#ifdef _MSC_VER
#pragma warning(suppress: 26495)
#endif
        hstring() noexcept : m_handle(nullptr) {}
        hstring(hstring const& values) = delete;
        hstring& operator=(hstring const& values) = delete;

jonwis

#include <iostream>
#include <ifstream>
#include <string>

// Opens a file by path name. Assumes the file is UTF-8 encoded. If the file
// has a BOM, it'll be skipped so the first access to the file is positioned
// correctly.
std::wifstream open_utf8_with_maybe_bom(std::filesystem::path const& path)
{
    std::wifstream ss;

jonwis

<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <Import Project="..\packages\Microsoft.Windows.CppWinRT.2.0.220531.1\build\native\Microsoft.Windows.CppWinRT.props" Condition="Exists('..\packages\Microsoft.Windows.CppWinRT.2.0.220531.1\build\native\Microsoft.Windows.CppWinRT.props')" />
  <PropertyGroup Label="Globals">
    <CppWinRTOptimized>true</CppWinRTOptimized>
    <CppWinRTRootNamespaceAutoMerge>true</CppWinRTRootNamespaceAutoMerge>
    <CppWinRTGenerateWindowsMetadata>true</CppWinRTGenerateWindowsMetadata>
    <MinimalCoreWin>true</MinimalCoreWin>
    <ProjectGuid>{86b1df74-0449-4ae4-a8ee-284912b2a7d1}</ProjectGuid>
    <ProjectName>App2AppCore</ProjectName>

jonwis

// Tool to either invoke a method or read a field on a type.

class MyTypeName {
    using TSelf = MyTypeName;
    template<typename T> using func_or_field = std::variant<
        T(TSelf::*)(),
        T TSelf::*>;

    template<typename T> auto invoke_func_or_field(func_or_field<T> const& fof)
    {

jonwis

#include <versionhelpers.h>

bool IsWindows10BuildOrGreater(uint16_t buildNumber)
{
    OSVERSIONINFOEXW osvi = { sizeof(osvi) };
    const auto conditionMask = VerSetConditionMask(
        VerSetConditionMask(
            VerSetConditionMask(
                VerSetConditionMask(
                    0, VER_MAJORVERSION, VER_GREATER_EQUAL),