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author | Vijay Pai <vpai@google.com> | 2016-06-15 20:42:30 -0700 |
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committer | Feng Xiao <xfxyjwf@gmail.com> | 2016-06-17 11:24:02 -0700 |
commit | 4e5dadb13650fa12893edfcc0433ec1eb1ba5829 (patch) | |
tree | 50037204481ec928bde7c907c5c73736004e3b79 | |
parent | 3470b6895aa659b7559ed678e029a5338e535f14 (diff) | |
download | protobuf-4e5dadb13650fa12893edfcc0433ec1eb1ba5829.tar.gz protobuf-4e5dadb13650fa12893edfcc0433ec1eb1ba5829.tar.bz2 protobuf-4e5dadb13650fa12893edfcc0433ec1eb1ba5829.zip |
Remove a friend-class template that is only used for the
constructor, and instead create an _internal_only getter
that gets the needed information. This is a workaround for
a deficiency in gcc-4.4 that does not properly support
templated friend classes.
-rw-r--r-- | src/google/protobuf/map.h | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/src/google/protobuf/map.h b/src/google/protobuf/map.h index 6f1a71e4..7f4acd0d 100644 --- a/src/google/protobuf/map.h +++ b/src/google/protobuf/map.h @@ -587,7 +587,7 @@ class Map { explicit MapAllocator(Arena* arena) : arena_(arena) {} template <typename X> MapAllocator(const MapAllocator<X>& allocator) - : arena_(allocator.arena_) {} + : arena_(allocator.arena_internal_only()) {} pointer allocate(size_type n, const_pointer hint = 0) { // If arena is not given, malloc needs to be called which doesn't @@ -650,12 +650,15 @@ class Map { return std::numeric_limits<size_type>::max(); } + // To support gcc-4.4, which does not properly + // support templated friend classes + Arena* arena_internal_only() const { + return arena_; + } + private: typedef void DestructorSkippable_; Arena* const arena_; - - template <typename X> - friend class MapAllocator; }; // InnerMap's key type is Key and its value type is value_type*. We use a |