ao: simplify hack for float atomics

stdatomic.h defines no atomic_float typedef. We can't just use _Atomic
unconditionally, because we support compilers without C11 atomics. So
just create a custom atomic_float typedef in the wrapper, which uses
_Atomic in the C11 code path.

1 files changed, 3 insertions, 0 deletions

diff --git a/osdep/atomic.h b/osdep/atomic.h
index 1d3e158afa..a5608fa78a 100644
--- a/osdep/atomic.h
+++ b/osdep/atomic.h
@@ -24,6 +24,7 @@
 
 #if HAVE_STDATOMIC
 #include <stdatomic.h>
+typedef _Atomic float mp_atomic_float;
 #else
 
 // Emulate the parts of C11 stdatomic.h needed by mpv.
@@ -36,6 +37,8 @@ typedef struct { long long v;          } atomic_llong;
 typedef struct { uint_least32_t v;     } atomic_uint_least32_t;
 typedef struct { unsigned long long v; } atomic_ullong;
 
+typedef struct { float v;              } mp_atomic_float;
+
 #define ATOMIC_VAR_INIT(x) \
     {.v = (x)}