df0ee34bc2
Allow ODR for ObjC/C in the sense that we won't keep more that one definition around (merge them). However, ensure the decl pass the structural compatibility check in C11 6.2.7/1, for that, reuse the structural equivalence checks used by the ASTImporter. Few other considerations: - Create error diagnostics for tag types mismatches and thread them into the structural equivalence checks. - Note that by doing this we only support redefinition between types that are considered "compatible types" by C. This is mixed approach of the suggestions discussed in http://lists.llvm.org/pipermail/cfe-dev/2017-March/053257.html Differential Revision: https://reviews.llvm.org/D31778 rdar://problem/31909368 llvm-svn: 306918
20 lines
239 B
C
20 lines
239 B
C
struct NS {
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int a;
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int b;
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};
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enum NSE {
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FST = 22,
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SND = 43,
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TRD = 55
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};
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#define NS_ENUM(_type, _name) \
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enum _name : _type _name; \
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enum _name : _type
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typedef NS_ENUM(int, NSMyEnum) {
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MinX = 11,
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MinXOther = MinX,
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};
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