CFResources.h

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/*!********************************************************************
 
 Audacity: A Digital Audio Editor
 
 @file CFResources.h
 
 @brief Wrap resource pointers from Apple Core SDK for RAII
 
 Paul Licameli
 
 **********************************************************************/
 
#ifndef __AUDACITY_CFRESOURCES__
#define __AUDACITY_CFRESOURCES__
 
#ifdef __APPLE__
 
#include <cstddef>
#include <memory>
#include <type_traits>
#include <utility>
#include <CoreFoundation/CFBase.h>
 
template<typename T = void *> struct CFReleaser{
   void operator () (T p) const noexcept { if (p) CFRelease(p); } };
 
 
template<typename T> using CF_ptr =
   std::unique_ptr<std::remove_pointer_t<T>, CFReleaser<T>>;
 
extern template struct CFReleaser<>;
 
#endif
#endif