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Unconditionally cast ref to volatile long on win32; 

This was originally a C++-only contribution, but clang also warns
about it on windows when compiling as C.

It's nice to have one less thing specific to C++.
This commit is contained in:
bjorn 2020-04-30 16:49:53 -06:00
parent eea73792a6
commit ce2a28360d
1 changed files with 2 additions and 8 deletions
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10
src/core/ref.h
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@ -17,18 +17,12 @@ static inline uint32_t ref_dec(Ref* ref) { return --*ref; }
#elif defined(_MSC_VER)
#ifdef __cplusplus
#define _LOVR_REF_H_CPP_CAST (volatile long *)
#else
#define _LOVR_REF_H_CPP_CAST
#endif
// MSVC atomics
#include <intrin.h>
typedef uint32_t Ref;
static inline uint32_t ref_inc(Ref* ref) { return _InterlockedIncrement(_LOVR_REF_H_CPP_CAST ref); }
static inline uint32_t ref_dec(Ref* ref) { return _InterlockedDecrement(_LOVR_REF_H_CPP_CAST ref); }
static inline uint32_t ref_inc(Ref* ref) { return _InterlockedIncrement((volatile long*) ref); }
static inline uint32_t ref_dec(Ref* ref) { return _InterlockedDecrement((volatile long*) ref); }
#elif (defined(__GNUC_MINOR__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7))) \
|| (__has_builtin(__atomic_add_fetch) && __has_builtin(__atomic_sub_fetch))