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Add #define for calcoffset() to fix Apple clang compile error

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- offset of on non-standard-layout type -Winvalid-offsetof
This commit is contained in:
Jake Turner committed 2026-10-06 06:32:34 +01:00
1 parent 6906fce2be
commit 6597049558
1 file changed
+8 -2
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renderdoc/driver/metal/metal_types.cpp
+8 -2
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@@ -40,12 +40,18 @@ RDCCOMPILE_ASSERT(sizeof(NS::Integer) == sizeof(std::intptr_t), "NS::Integer siz
RDCCOMPILE_ASSERT(sizeof(NS::UInteger) == sizeof(std::uintptr_t),
"NS::UInteger size does not match");
#define calcoffset(TYPE, ELEMENT) ((size_t) & (((TYPE *)0)->ELEMENT))
#define DEFINE_OBJC_HELPERS(CPPTYPE) \
void AllocateObjCBridge(WrappedMTL##CPPTYPE *wrappedCPP) \
{ \
RDCCOMPILE_ASSERT((offsetof(WrappedMTL##CPPTYPE, m_ObjcBridge) == 0), \
"m_ObjcBridge must be at offsetof 0"); \
const char *const className = "ObjCBridgeMTL" #CPPTYPE; \
static size_t offset = calcoffset(WrappedMTL##CPPTYPE, m_ObjcBridge); \
if(offset != 0) \
{ \
RDCFATAL("'%s' m_ObjcBridge must be at offset of 0 %lu", className, offset, \
"m_ObjcBridge must be at offsetof 0"); \
} \
static Class klass = objc_lookUpClass(className); \
static size_t classSize = class_getInstanceSize(klass); \
if(classSize != sizeof(wrappedCPP->m_ObjcBridge)) \