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374fffe015
This manifested as an assertion failure in Clang built against libc++ with hardening enabled (e.g. -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_DEBUG): `libcxx/include/__memory/unique_ptr.h:596: assertion __checker_.__in_bounds(std::__to_address(__ptr_), __i) failed: unique_ptr<T[]>::operator[](index): index out of range`
28 lines
938 B
C
28 lines
938 B
C
// RUN: %clang_cc1 -fsyntax-only %s 2> %t
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// RUN: FileCheck < %t %s
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#define F (1 << 99)
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#define M \
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F | F
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int a = M;
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// CHECK: :8:9: warning: shift count >= width of type [-Wshift-count-overflow]
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// CHECK-NEXT: 8 | int a = M;
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// CHECK-NEXT: | ^
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// CHECK-NEXT: :5:11: note: expanded from macro 'M'
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// CHECK-NEXT: 5 | #define M \
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// CHECK-NEXT: | ^
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// CHECK-NEXT: :3:14: note: expanded from macro '\
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// CHECK-NEXT: F'
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// CHECK-NEXT: 3 | #define F (1 << 99)
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// CHECK-NEXT: | ^ ~~
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// CHECK-NEXT: :8:9: warning: shift count >= width of type [-Wshift-count-overflow]
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// CHECK-NEXT: 8 | int a = M;
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// CHECK-NEXT: | ^
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// CHECK-NEXT: :6:5: note: expanded from macro 'M'
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// CHECK-NEXT: 6 | F | F
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// CHECK-NEXT: | ^
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// CHECK-NEXT: :3:14: note: expanded from macro 'F'
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// CHECK-NEXT: 3 | #define F (1 << 99)
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// CHECK-NEXT: | ^ ~~
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