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Fixed bug for old versions of Windows #167

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Fixes a bug related to the fact that before Windows 10 version 1607, the windows api does not have the ::SetThreadDescription function for setting the name for a thread.
When the application tries to call a system function, it crashes.

@@ -47,11 +47,17 @@ size_t thread::hardware_concurrency() noexcept {
#ifdef CRCPP_WIN_OS

# include <Windows.h>
# include <VersionHelpers.h>

void thread::set_name(std::string_view name) noexcept {
const std::wstring utf16_name(name.begin(),

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What about making the wstring construction conditional too?

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