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Fix for Ticket #12915: "Buffer overflow in boost::container::vector (affects flat_set)"
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@@ -2257,7 +2257,7 @@ class vector
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boost::uintptr_t const capaddr = boost::uintptr_t(this->priv_raw_begin() + c);
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boost::uintptr_t const aligned_addr = (addr + szt_align_mask) & ~szt_align_mask;
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indexes = reinterpret_cast<size_type *>(aligned_addr);
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std::size_t index_capacity = (aligned_addr >= capaddr) ? 0u : (capaddr - addr)/sizeof(size_type);
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std::size_t index_capacity = (aligned_addr >= capaddr) ? 0u : (capaddr - aligned_addr)/sizeof(size_type);
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//Capacity is constant, we're not going to change it
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if(index_capacity < PosCount){
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