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caps.c
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caps.c
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#include "objc/capabilities.h"
#include <stdint.h>
/**
* Bitmask of all of the capabilities compiled into this version of the
* runtime.
*/
static const int32_t caps =
(1<<OBJC_CAP_EXCEPTIONS) |
(1<<OBJC_CAP_SYNCRONIZE) |
(1<<OBJC_CAP_PROPERTIES) |
(1<<OBJC_CAP_PROPERTY_INTROSPECTION) |
(1<<OBJC_CAP_OPTIONAL_PROTOCOLS) |
(1<<OBJC_CAP_NONFRAGILE_IVARS) |
(1<<OBJC_DEVELOPER_MODE) |
(1<<OBJC_CAP_REGISTERED_COMPATIBILITY_ALIASES) |
(1<<OBJC_CAP_ARC) |
(1<<OBJC_CAP_ASSOCIATED_REFERENCES) |
(1<<OBJC_CAP_PROTOTYPES) |
#ifndef NO_OBJCXX
(1<<OBJC_UNIFIED_EXCEPTION_MODEL) |
#endif
#ifdef TYPE_DEPENDENT_DISPATCH
(1<<OBJC_CAP_TYPE_DEPENDENT_DISPATCH) |
#endif
#ifdef __OBJC_LOW_MEMORY__
(1<<OBJC_CAP_LOW_MEMORY) |
#endif
#ifdef ENABLE_GC
(1<<OBJC_CAP_GARBAGE_COLLECTION) |
#endif
#if defined(WITH_TRACING) && defined (__x86_64)
(1<<OBJC_CAP_TRACING) |
#endif
0;
OBJC_PUBLIC int objc_test_capability(int x)
{
if (x >= 32) { return 0; }
if (caps & (1<<x)) { return 1; }
return 0;
}