Term::Private::WindowsException Class Reference

#include <cpp-terminal/private/exception.hpp>

Inheritance diagram for Term::Private::WindowsException:

Public Member Functions
	WindowsException (const std::int64_t &error, const std::string &context=std::string())
	~WindowsException () override=default
Public Member Functions inherited from Term::Exception
	Exception (const std::string &message) noexcept
	Exception (const std::int64_t &code, const std::string &message) noexcept
	Exception (const Exception &)=default
	Exception (Exception &&)=default
Exception &	operator= (Exception &&)=default
Exception &	operator= (const Exception &)=default
const char *	what () const noexcept override
std::int64_t	code () const noexcept
std::string	message () const noexcept
std::string	context () const noexcept
	~Exception () noexcept override=default

Private Member Functions
void	build_what () const noexcept final

Additional Inherited Members
Protected Member Functions inherited from Term::Exception
	Exception (const std::int64_t &code) noexcept
void	setMessage (const std::string &message) noexcept
void	setContext (const std::string &context) noexcept
void	setWhat (const std::string &what) const noexcept
Static Protected Attributes inherited from Term::Exception
static const constexpr std::size_t	m_maxSize {256}

Detailed Description

Definition at line 43 of file exception.hpp.

Constructor & Destructor Documentation

WindowsException()

Term::Private::WindowsException::WindowsException	(	const std::int64_t &	error,
		const std::string &	context = std::string() )

Definition at line 87 of file exception.cpp.

                                                                                               : Term::Exception(static_cast<std::int64_t>(error))
{
  setContext(context);
  wchar_t*    ptr{nullptr};
  const DWORD cchMsg{FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_ALLOCATE_BUFFER, nullptr, static_cast<uint32_t>(code()), MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US), reinterpret_cast<wchar_t*>(&ptr), 0, nullptr)};
  if(cchMsg > 0)
  {
    auto deleter = [](void* p)
    {
      if(p != nullptr) { ::LocalFree(p); }
    };
    std::unique_ptr<wchar_t, decltype(deleter)> ptrBuffer(ptr, deleter);
    std::string                                 ret{Term::Private::to_narrow(ptrBuffer.get())};
    if(ret.size() >= 2 && ret[ret.size() - 1] == '\n' && ret[ret.size() - 2] == '\r') ret.erase(ret.size() - 2);
    setMessage(ret);
  }
  else { throw Term::Exception(::GetLastError(), "Error in FormatMessageW"); }
}

~WindowsException()

Term::Private::WindowsException::~WindowsException ( )

overridedefault

Member Function Documentation

build_what()

void Term::Private::WindowsException::build_what ( ) const

finalprivatevirtualnoexcept

Reimplemented from Term::Exception.

Definition at line 106 of file exception.cpp.

{
  std::string what{std::string("windows error ") + std::to_string(code()) + std::string(": ") + message().c_str()};
  if(!context().empty()) what += " [" + context() + "]";
  setWhat(what);
}

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The documentation for this class was generated from the following files:

• cpp-terminal/private/exception.hpp
• cpp-terminal/private/exception.cpp