use reserved spelling for typeof

Use the reserved spelling for `typeof` as it is a non-standard compiler
extension. NFC.

Author: compnerd

src/apply.c

@@ -285,7 +285,7 @@ dispatch_apply_f(size_t iterations, dispatch_queue_t dq, void *ctxt,
 		.dc_ctxt = ctxt,
 		.dc_data = dq,
 	};
-	dispatch_apply_t da = (typeof(da))_dispatch_continuation_alloc();
+	dispatch_apply_t da = (__typeof__(da))_dispatch_continuation_alloc();
 	da->da_index = 0;
 	da->da_todo = iterations;
 	da->da_iterations = iterations;

src/event/event.c

@@ -49,7 +49,7 @@ _dispatch_unote_create(dispatch_source_type_t dst,
 	du->du_can_be_wlh = dst->dst_per_trigger_qos;
 	du->du_ident = (uint32_t)handle;
 	du->du_filter = dst->dst_filter;
-	du->du_fflags = (typeof(du->du_fflags))mask;
+	du->du_fflags = (__typeof__(du->du_fflags))mask;
 	if (dst->dst_flags & EV_UDATA_SPECIFIC) {
 		du->du_is_direct = true;
 	}

src/event/event_config.h

@@ -60,7 +60,7 @@
 
 #if DISPATCH_TIMER_ASSERTIONS
 #define DISPATCH_TIMER_ASSERT(a, op, b, text) ({ \
-		typeof(a) _a = (a); \
+		__typeof__(a) _a = (a); \
 		if (unlikely(!(_a op (b)))) { \
 			DISPATCH_CLIENT_CRASH(_a, "Timer: " text); \
 		} \

src/event/event_kevent.c

@@ -32,7 +32,7 @@
 #define DISPATCH_KEVENT_MUXED_MARKER  1ul
 #define DISPATCH_MACH_AUDIT_TOKEN_PID (5)
 
-#define dispatch_kevent_udata_t  typeof(((dispatch_kevent_t)NULL)->udata)
+#define dispatch_kevent_udata_t  __typeof__(((dispatch_kevent_t)NULL)->udata)
 
 typedef struct dispatch_muxnote_s {
 	TAILQ_ENTRY(dispatch_muxnote_s) dmn_list;
@@ -738,9 +738,9 @@ _dispatch_kq_unote_set_kevent(dispatch_unote_t _du, dispatch_kevent_t dk,
 		.flags  = flags,
 		.udata  = (dispatch_kevent_udata_t)du,
 		.fflags = du->du_fflags | dst->dst_fflags,
-		.data   = (typeof(dk->data))dst->dst_data,
+		.data   = (__typeof__(dk->data))dst->dst_data,
 #if DISPATCH_USE_KEVENT_QOS
-		.qos    = (typeof(dk->qos))pp,
+		.qos    = (__typeof__(dk->qos))pp,
 #endif
 	};
 	(void)pp; // if DISPATCH_USE_KEVENT_QOS == 0
@@ -1778,7 +1778,7 @@ _dispatch_mach_notify_update(dispatch_muxnote_t dmn, uint32_t new_flags,
 		mach_port_mscount_t notify_sync)
 {
 	mach_port_t previous, port = (mach_port_t)dmn->dmn_kev.ident;
-	typeof(dmn->dmn_kev.data) prev = dmn->dmn_kev.data;
+	__typeof__(dmn->dmn_kev.data) prev = dmn->dmn_kev.data;
 	kern_return_t kr, krr = 0;
 
 	// Update notification registration state.

src/firehose/firehose_buffer.c

@@ -27,11 +27,11 @@
 
 #define DISPATCH_PURE_C 1
 #define _safe_cast_to_long(x) \
-		({ _Static_assert(sizeof(typeof(x)) <= sizeof(long), \
+		({ _Static_assert(sizeof(__typeof__(x)) <= sizeof(long), \
 				"__builtin_expect doesn't support types wider than long"); \
 				(long)(x); })
-#define fastpath(x) ((typeof(x))__builtin_expect(_safe_cast_to_long(x), ~0l))
-#define slowpath(x) ((typeof(x))__builtin_expect(_safe_cast_to_long(x), 0l))
+#define fastpath(x) ((__typeof__(x))__builtin_expect(_safe_cast_to_long(x), ~0l))
+#define slowpath(x) ((__typeof__(x))__builtin_expect(_safe_cast_to_long(x), 0l))
 #define os_likely(x) __builtin_expect(!!(x), 1)
 #define os_unlikely(x) __builtin_expect(!!(x), 0)
 #define likely(x)   __builtin_expect(!!(x), 1)
@@ -54,7 +54,7 @@
 #endif
 
 #define _dispatch_wait_until(c) ({ \
-		typeof(c) _c; \
+		__typeof__(c) _c; \
 		for (;;) { \
 			if (likely(_c = (c))) break; \
 			dispatch_hardware_pause(); \

src/firehose/firehose_inline_internal.h

@@ -27,7 +27,7 @@
 		})
 
 #define firehose_atomic_max2o(p, f, v, m)   ({ \
-		typeof((p)->f) _old; \
+		__typeof__((p)->f) _old; \
 		firehose_atomic_maxv2o(p, f, v, &_old, m); \
 	})
 

src/inline_internal.h

@@ -1484,7 +1484,7 @@ _dispatch_queue_drain_try_unlock(dispatch_queue_t dq, uint64_t owned, bool done)
 // type_t * {volatile,const,_Atomic,...} -> type_t *
 // type_t[] -> type_t *
 #define os_unqualified_pointer_type(expr) \
-		typeof(typeof(*(expr)) *)
+		__typeof__(__typeof__(*(expr)) *)
 
 #define os_mpsc_node_type(q, _ns)  \
 		os_unqualified_pointer_type((q)->_ns##_head)
@@ -1525,7 +1525,7 @@ _dispatch_queue_drain_try_unlock(dispatch_queue_t dq, uint64_t owned, bool done)
 		_dispatch_wait_until(os_atomic_load2o(_n, _o_next, dependency))
 
 #define os_mpsc_pop_head(q, _ns, head, _o_next)  ({ \
-		typeof(q) _q = (q); \
+		__typeof__(q) _q = (q); \
 		os_mpsc_node_type(_q, _ns) _head = (head), _n; \
 		_n = os_atomic_load2o(_head, _o_next, dependency); \
 		os_atomic_store2o(_q, _ns##_head, _n, relaxed); \
@@ -1540,7 +1540,7 @@ _dispatch_queue_drain_try_unlock(dispatch_queue_t dq, uint64_t owned, bool done)
 	})
 
 #define os_mpsc_undo_pop_head(q, _ns, head, next, _o_next)  ({ \
-		typeof(q) _q = (q); \
+		__typeof__(q) _q = (q); \
 		os_mpsc_node_type(_q, _ns) _head = (head), _n = (next); \
 		if (unlikely(!_n && \
 				!os_atomic_cmpxchg2o(_q, _ns##_tail, NULL, _head, relaxed))) { \
@@ -1551,7 +1551,7 @@ _dispatch_queue_drain_try_unlock(dispatch_queue_t dq, uint64_t owned, bool done)
 	})
 
 #define os_mpsc_capture_snapshot(q, _ns, tail)  ({ \
-		typeof(q) _q = (q); \
+		__typeof__(q) _q = (q); \
 		os_mpsc_node_type(_q, _ns) _head = os_mpsc_get_head(q, _ns); \
 		os_atomic_store2o(_q, _ns##_head, NULL, relaxed); \
 		/* 22708742: set tail to NULL with release, so that NULL write */ \
@@ -1568,7 +1568,7 @@ _dispatch_queue_drain_try_unlock(dispatch_queue_t dq, uint64_t owned, bool done)
 		_n; })
 
 #define os_mpsc_prepend(q, _ns, head, tail, _o_next)  ({ \
-		typeof(q) _q = (q); \
+		__typeof__(q) _q = (q); \
 		os_mpsc_node_type(_q, _ns) _head = (head), _tail = (tail), _n; \
 		os_atomic_store2o(_tail, _o_next, NULL, relaxed); \
 		if (unlikely(!os_atomic_cmpxchg2o(_q, _ns##_tail, NULL, _tail, release))) { \

src/internal.h

@@ -354,11 +354,11 @@ DISPATCH_EXPORT DISPATCH_NOTHROW void dispatch_atfork_child(void);
 /* I wish we had __builtin_expect_range() */
 #if __GNUC__
 #define _safe_cast_to_long(x) \
-		({ _Static_assert(sizeof(typeof(x)) <= sizeof(long), \
+		({ _Static_assert(sizeof(__typeof__(x)) <= sizeof(long), \
 				"__builtin_expect doesn't support types wider than long"); \
 				(long)(x); })
-#define fastpath(x) ((typeof(x))__builtin_expect(_safe_cast_to_long(x), ~0l))
-#define slowpath(x) ((typeof(x))__builtin_expect(_safe_cast_to_long(x), 0l))
+#define fastpath(x) ((__typeof__(x))__builtin_expect(_safe_cast_to_long(x), ~0l))
+#define slowpath(x) ((__typeof__(x))__builtin_expect(_safe_cast_to_long(x), 0l))
 #define likely(x) __builtin_expect(!!(x), 1)
 #define unlikely(x) __builtin_expect(!!(x), 0)
 #else
@@ -455,7 +455,7 @@ void _dispatch_log(const char *msg, ...);
 		if (__builtin_constant_p(e)) { \
 			dispatch_static_assert(e); \
 		} else { \
-			typeof(e) _e = (e); /* always eval 'e' */ \
+			__typeof__(e) _e = (e); /* always eval 'e' */ \
 			if (unlikely(DISPATCH_DEBUG && !_e)) { \
 				_dispatch_abort(__LINE__, (long)_e); \
 			} \
@@ -479,7 +479,7 @@ _dispatch_assert(long e, size_t line)
 		if (__builtin_constant_p(e)) { \
 			dispatch_static_assert(e); \
 		} else { \
-			typeof(e) _e = (e); /* always eval 'e' */ \
+			__typeof__(e) _e = (e); /* always eval 'e' */ \
 			if (unlikely(DISPATCH_DEBUG && _e)) { \
 				_dispatch_abort(__LINE__, (long)_e); \
 			} \
@@ -502,7 +502,7 @@ _dispatch_assert_zero(long e, size_t line)
  */
 #if __GNUC__
 #define dispatch_assume(e) ({ \
-		typeof(e) _e = (e); /* always eval 'e' */ \
+		__typeof__(e) _e = (e); /* always eval 'e' */ \
 		if (unlikely(!_e)) { \
 			if (__builtin_constant_p(e)) { \
 				dispatch_static_assert(e); \
@@ -527,7 +527,7 @@ _dispatch_assume(long e, long line)
  */
 #if __GNUC__
 #define dispatch_assume_zero(e) ({ \
-		typeof(e) _e = (e); /* always eval 'e' */ \
+		__typeof__(e) _e = (e); /* always eval 'e' */ \
 		if (unlikely(_e)) { \
 			if (__builtin_constant_p(e)) { \
 				dispatch_static_assert(e); \
@@ -554,7 +554,7 @@ _dispatch_assume_zero(long e, long line)
 		if (__builtin_constant_p(e)) { \
 			dispatch_static_assert(e); \
 		} else { \
-			typeof(e) _e = (e); /* always eval 'e' */ \
+			__typeof__(e) _e = (e); /* always eval 'e' */ \
 			if (unlikely(DISPATCH_DEBUG && !_e)) { \
 				_dispatch_log("%s() 0x%lx: " msg, __func__, (long)_e, ##args); \
 				abort(); \
@@ -563,7 +563,7 @@ _dispatch_assume_zero(long e, long line)
 	} while (0)
 #else
 #define dispatch_debug_assert(e, msg, args...) do { \
-	typeof(e) _e = (e); /* always eval 'e' */ \
+	__typeof__(e) _e = (e); /* always eval 'e' */ \
 	if (unlikely(DISPATCH_DEBUG && !_e)) { \
 		_dispatch_log("%s() 0x%lx: " msg, __FUNCTION__, _e, ##args); \
 		abort(); \
@@ -594,7 +594,7 @@ _dispatch_object_debug(dispatch_object_t object, const char *message, ...);
 		((dispatch_function_t)((struct Block_layout *)bb)->invoke)
 void *_dispatch_Block_copy(void *block);
 #if __GNUC__
-#define _dispatch_Block_copy(x) ((typeof(x))_dispatch_Block_copy(x))
+#define _dispatch_Block_copy(x) ((__typeof__(x))_dispatch_Block_copy(x))
 #endif
 void _dispatch_call_block_and_release(void *block);
 #endif /* __BLOCKS__ */

src/introspection.c

@@ -439,7 +439,7 @@ dispatch_introspection_hooks_s _dispatch_introspection_hook_callouts_enabled = {
 		(slowpath(_dispatch_introspection_hooks.h))
 
 #define DISPATCH_INTROSPECTION_HOOK_CALLOUT(h, ...) ({ \
-		typeof(_dispatch_introspection_hooks.h) _h; \
+		__typeof__(_dispatch_introspection_hooks.h) _h; \
 		_h = _dispatch_introspection_hooks.h; \
 		if (slowpath((void*)(_h) != DISPATCH_INTROSPECTION_NO_HOOK)) { \
 			_h(__VA_ARGS__); \

src/io.c

@@ -119,7 +119,7 @@ enum {
 };
 
 #define _dispatch_io_Block_copy(x) \
-		((typeof(x))_dispatch_Block_copy((dispatch_block_t)(x)))
+		((__typeof__(x))_dispatch_Block_copy((dispatch_block_t)(x)))
 
 #pragma mark -
 #pragma mark dispatch_io_debug
@@ -211,7 +211,7 @@ static struct dispatch_io_defaults_s {
 };
 
 #define _dispatch_iocntl_set_default(p, v) do { \
-		dispatch_io_defaults.p = (typeof(dispatch_io_defaults.p))(v); \
+		dispatch_io_defaults.p = (__typeof__(dispatch_io_defaults.p))(v); \
 	} while (0)
 
 void
@@ -1829,7 +1829,7 @@ _dispatch_stream_cleanup_operations(dispatch_stream_t stream,
 {
 	// On stream queue
 	dispatch_operation_t op, tmp;
-	typeof(*stream->operations) *operations;
+	__typeof__(*stream->operations) *operations;
 	operations = &stream->operations[DISPATCH_IO_RANDOM];
 	TAILQ_FOREACH_SAFE(op, operations, operation_list, tmp) {
 		if (!channel || op->channel == channel) {

src/object_internal.h

@@ -590,7 +590,7 @@ size_t _dispatch_objc_debug(dispatch_object_t dou, char* buf, size_t bufsiz);
  *   reached -1.
  */
 #define _os_atomic_refcnt_perform2o(o, f, op, n, m)   ({ \
-		typeof(o) _o = (o); \
+		__typeof__(o) _o = (o); \
 		int _ref_cnt = _o->f; \
 		if (fastpath(_ref_cnt != _OS_OBJECT_GLOBAL_REFCNT)) { \
 			_ref_cnt = os_atomic_##op##2o(_o, f, n, m); \

src/queue.c

@@ -2248,9 +2248,9 @@ _dispatch_pthread_root_queue_create(const char *label, unsigned long flags,
 			sizeof(struct dispatch_root_queue_context_s) +
 			sizeof(struct dispatch_pthread_root_queue_context_s));
 	qc = (void*)dq + dqs;
-	dispatch_assert((uintptr_t)qc % _Alignof(typeof(*qc)) == 0);
+	dispatch_assert((uintptr_t)qc % _Alignof(__typeof__(*qc)) == 0);
 	pqc = (void*)qc + sizeof(struct dispatch_root_queue_context_s);
-	dispatch_assert((uintptr_t)pqc % _Alignof(typeof(*pqc)) == 0);
+	dispatch_assert((uintptr_t)pqc % _Alignof(__typeof__(*pqc)) == 0);
 	if (label) {
 		const char *tmp = _dispatch_strdup_if_mutable(label);
 		if (tmp != label) {

src/shims.h

@@ -247,7 +247,7 @@ void __builtin_trap(void);
 
 #if __has_feature(c_static_assert)
 #define __dispatch_is_array(x) \
-	_Static_assert(!__builtin_types_compatible_p(typeof((x)[0]) *, typeof(x)), \
+	_Static_assert(!__builtin_types_compatible_p(__typeof__((x)[0]) *, __typeof__(x)), \
 				#x " isn't an array")
 #define countof(x) \
 	({ __dispatch_is_array(x); sizeof(x) / sizeof((x)[0]); })

src/shims/atomic.h

@@ -43,11 +43,11 @@
 #define os_atomic(type) type _Atomic
 
 #define _os_atomic_c11_atomic(p) \
-		((typeof(*(p)) _Atomic *)(p))
+		((__typeof__(*(p)) _Atomic *)(p))
 
 // This removes the _Atomic and volatile qualifiers on the type of *p
 #define _os_atomic_basetypeof(p) \
-		typeof(atomic_load_explicit(_os_atomic_c11_atomic(p), memory_order_relaxed))
+		__typeof__(atomic_load_explicit(_os_atomic_c11_atomic(p), memory_order_relaxed))
 
 #define os_atomic_load(p, m) \
 		atomic_load_explicit(_os_atomic_c11_atomic(p), memory_order_##m)
@@ -71,7 +71,7 @@
 #define _os_atomic_c11_op(p, v, m, o, op) \
 		({ _os_atomic_basetypeof(p) _v = (v), _r = \
 		atomic_fetch_##o##_explicit(_os_atomic_c11_atomic(p), _v, \
-		memory_order_##m); (typeof(*(p)))(_r op _v); })
+		memory_order_##m); (__typeof__(*(p)))(_r op _v); })
 #define _os_atomic_c11_op_orig(p, v, m, o, op) \
 		atomic_fetch_##o##_explicit(_os_atomic_c11_atomic(p), v, \
 		memory_order_##m)
@@ -156,7 +156,7 @@
 
 #define os_atomic_rmw_loop(p, ov, nv, m, ...)  ({ \
 		bool _result = false; \
-		typeof(p) _p = (p); \
+		__typeof__(p) _p = (p); \
 		ov = os_atomic_load(_p, relaxed); \
 		do { \
 			__VA_ARGS__; \

src/shims/atomic_sfb.h

@@ -50,7 +50,7 @@ os_atomic_set_first_bit(volatile unsigned long *p, unsigned int max)
 				 "mov	%[_all_ones], %[_bit]" "\n\t"
 				 "3: \n\t"
 				 : [_p] "=m" (*p), [_val] "=&r" (val), [_bit] "=&r" (bit)
-				 : [_all_ones] "i" ((typeof(bit))UINT_MAX) : "memory", "cc");
+				 : [_all_ones] "i" ((__typeof__(bit))UINT_MAX) : "memory", "cc");
 	} else {
 		__asm__ (
 				 "1: \n\t"
@@ -68,8 +68,8 @@ os_atomic_set_first_bit(volatile unsigned long *p, unsigned int max)
 				 "mov	%[_all_ones], %[_bit]" "\n\t"
 				 "3: \n\t"
 				 : [_p] "=m" (*p), [_val] "=&r" (val), [_bit] "=&r" (bit)
-				 : [_all_ones] "i" ((typeof(bit))UINT_MAX),
-				   [_max] "g" ((typeof(bit))max) : "memory", "cc");
+				 : [_all_ones] "i" ((__typeof__(bit))UINT_MAX),
+				   [_max] "g" ((__typeof__(bit))max) : "memory", "cc");
 	}
 	return (unsigned int)bit;
 }

src/shims/lock.c

@@ -144,8 +144,8 @@ _dispatch_sema4_timedwait(_dispatch_sema4_t *sema, dispatch_time_t timeout)
 
 	do {
 		uint64_t nsec = _dispatch_timeout(timeout);
-		_timeout.tv_sec = (typeof(_timeout.tv_sec))(nsec / NSEC_PER_SEC);
-		_timeout.tv_nsec = (typeof(_timeout.tv_nsec))(nsec % NSEC_PER_SEC);
+		_timeout.tv_sec = (__typeof__(_timeout.tv_sec))(nsec / NSEC_PER_SEC);
+		_timeout.tv_nsec = (__typeof__(_timeout.tv_nsec))(nsec % NSEC_PER_SEC);
 		kr = slowpath(semaphore_timedwait(*sema, _timeout));
 	} while (kr == KERN_ABORTED);
 
@@ -200,8 +200,8 @@ _dispatch_sema4_timedwait(_dispatch_sema4_t *sema, dispatch_time_t timeout)
 
 	do {
 		uint64_t nsec = _dispatch_time_nanoseconds_since_epoch(timeout);
-		_timeout.tv_sec = (typeof(_timeout.tv_sec))(nsec / NSEC_PER_SEC);
-		_timeout.tv_nsec = (typeof(_timeout.tv_nsec))(nsec % NSEC_PER_SEC);
+		_timeout.tv_sec = (__typeof__(_timeout.tv_sec))(nsec / NSEC_PER_SEC);
+		_timeout.tv_nsec = (__typeof__(_timeout.tv_nsec))(nsec % NSEC_PER_SEC);
 		ret = slowpath(sem_timedwait(sema, &_timeout));
 	} while (ret == -1 && errno == EINTR);
 

src/shims/yield.h

@@ -32,7 +32,7 @@
 
 #if DISPATCH_HW_CONFIG_UP
 #define _dispatch_wait_until(c) ({ \
-		typeof(c) _c; \
+		__typeof__(c) _c; \
 		int _spins = 0; \
 		for (;;) { \
 			if (likely(_c = (c))) break; \
@@ -46,7 +46,7 @@
 #define DISPATCH_WAIT_SPINS 1024
 #endif
 #define _dispatch_wait_until(c) ({ \
-		typeof(c) _c; \
+		__typeof__(c) _c; \
 		int _spins = -(DISPATCH_WAIT_SPINS); \
 		for (;;) { \
 			if (likely(_c = (c))) break; \
@@ -59,7 +59,7 @@
 		_c; })
 #else
 #define _dispatch_wait_until(c) ({ \
-		typeof(c) _c; \
+		__typeof__(c) _c; \
 		for (;;) { \
 			if (likely(_c = (c))) break; \
 			dispatch_hardware_pause(); \

tests/Foundation/bench.mm

@@ -107,7 +107,7 @@ static void __attribute__((noinline))
 		d /= tbi.denom;
 	}
 
-	dd = (typeof(dd))d / (typeof(dd))cnt;
+	dd = (__typeof__(dd))d / (__typeof__(dd))cnt;
 
 	dd -= loop_cost;
 
@@ -135,7 +135,7 @@ static void __attribute__((noinline))
 		d /= tbi.denom;
 	}
 
-	dd = (typeof(dd))d / (typeof(dd))cnt2;
+	dd = (__typeof__(dd))d / (__typeof__(dd))cnt2;
 
 	dd -= loop_cost;
 	dd *= cycles_per_nanosecond;