[ARROW-519] [C++] Missing vtable in libarrow.dylib on Xcode 6.4

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.2.0
• Component/s: C++
• External issue URL: https://github.com/apache/arrow/issues/16159
• Assignee: Wes McKinney
• Reporter: Wes McKinney
• Created: 29/Jan/17 18:18
• Updated: 11/Jan/23 07:09
• Resolved: 30/Jan/17 02:27

Description

For some reason, on Xcode 6.4 there are two missing vtables for NumericArray<DoubleType> and FloatType:

$ nm -g libarrow.dylib | c++filt | grep vtable
                 U vtable for __cxxabiv1::__class_type_info
                 U vtable for __cxxabiv1::__si_class_type_info
                 U vtable for __cxxabiv1::__vmi_class_type_info
0000000000035f10 S vtable for arrow::BinaryType
0000000000036470 S vtable for arrow::DoubleType
0000000000035be0 S vtable for arrow::MemoryPool
00000000000358f0 S vtable for arrow::PoolBuffer
0000000000035f90 S vtable for arrow::StringType
0000000000035ff0 S vtable for arrow::StructType
0000000000035610 S vtable for arrow::UnionArray
0000000000035570 S vtable for arrow::BinaryArray
0000000000035e20 S vtable for arrow::BooleanType
0000000000036070 S vtable for arrow::DecimalType
0000000000035970 S vtable for arrow::ListBuilder
00000000000355c0 S vtable for arrow::StringArray
00000000000357a0 S vtable for arrow::StructArray
00000000000359f0 S vtable for arrow::ArrayBuilder
0000000000035520 S vtable for arrow::BooleanArray
0000000000036280 S vtable for arrow::IntervalType
0000000000036570 D vtable for arrow::NumericArray<arrow::UInt16Type>
00000000000365c0 D vtable for arrow::NumericArray<arrow::UInt32Type>
0000000000036610 D vtable for arrow::NumericArray<arrow::UInt64Type>
0000000000036840 D vtable for arrow::NumericArray<arrow::HalfFloatType>
00000000000367a0 D vtable for arrow::NumericArray<arrow::TimestampType>
00000000000367f0 D vtable for arrow::NumericArray<arrow::DateType>
0000000000036660 D vtable for arrow::NumericArray<arrow::Int8Type>
00000000000366b0 D vtable for arrow::NumericArray<arrow::Int16Type>
0000000000036700 D vtable for arrow::NumericArray<arrow::Int32Type>
0000000000036750 D vtable for arrow::NumericArray<arrow::Int64Type>
0000000000036520 D vtable for arrow::NumericArray<arrow::UInt8Type>
00000000000359b0 S vtable for arrow::BinaryBuilder
0000000000036310 S vtable for arrow::HalfFloatType
0000000000035ae0 S vtable for arrow::StringBuilder
0000000000035b40 S vtable for arrow::StructBuilder
0000000000036210 S vtable for arrow::TimestampType
0000000000035a40 S vtable for arrow::BooleanBuilder
0000000000035cf0 S vtable for arrow::DictionaryType
0000000000035db0 S vtable for arrow::FixedWidthType
00000000000354d0 S vtable for arrow::PrimitiveArray
0000000000035660 S vtable for arrow::DictionaryArray
0000000000038420 D vtable for arrow::PrimitiveBuilder<arrow::DoubleType>
0000000000038160 D vtable for arrow::PrimitiveBuilder<arrow::UInt16Type>
00000000000381a0 D vtable for arrow::PrimitiveBuilder<arrow::UInt32Type>
00000000000381e0 D vtable for arrow::PrimitiveBuilder<arrow::UInt64Type>
00000000000383a0 D vtable for arrow::PrimitiveBuilder<arrow::HalfFloatType>
0000000000038360 D vtable for arrow::PrimitiveBuilder<arrow::TimestampType>
0000000000038320 D vtable for arrow::PrimitiveBuilder<arrow::DateType>
0000000000038220 D vtable for arrow::PrimitiveBuilder<arrow::Int8Type>
00000000000383e0 D vtable for arrow::PrimitiveBuilder<arrow::FloatType>
0000000000038260 D vtable for arrow::PrimitiveBuilder<arrow::Int16Type>
00000000000382a0 D vtable for arrow::PrimitiveBuilder<arrow::Int32Type>
00000000000382e0 D vtable for arrow::PrimitiveBuilder<arrow::Int64Type>
0000000000038120 D vtable for arrow::PrimitiveBuilder<arrow::UInt8Type>
0000000000035480 S vtable for arrow::Array
00000000000358d0 S vtable for arrow::Buffer
0000000000035cb0 S vtable for arrow::DataType
0000000000036130 S vtable for arrow::DateType
0000000000035e90 S vtable for arrow::ListType
0000000000035d50 S vtable for arrow::NullType
00000000000361a0 S vtable for arrow::TimeType
00000000000363c0 S vtable for arrow::FloatType
0000000000035730 S vtable for arrow::ListArray
00000000000356c0 S vtable for arrow::NullArray
00000000000360d0 S vtable for arrow::UnionType
                 U vtable for std::__1::bad_weak_ptr

On Xcode 8 (newer clang), the vtables are there. It must have something to do with the template specializations in arrow/array.h – I am not sure what else it might be.