On 7/10/24 12:31, Bhuyan, Jyotideep via Boost wrote:

Hello,

I am updating my code from boost version 1.78 to boost 1.85. and facing build issues "error C2766: explicit specialization; 'boost::core::detail::tn_holder<unsigned short>' has already been defined"

Below is the error that I am facing that needs your help. I could not find any code or direct header file inclusion in my code related to the below error.

C:\<my boost>\boost_1_85\boost\boost\core\type_name.hpp(354,2): error C2766: explicit specialization; 'boost::core::detail::tn_holder<unsigned short>' has already been defined. C:\<my boost>\boost_1_85\boost\boost\core\type_name.hpp(273): message : see previous definition of 'tn_holder<unsigned short>

Please note that after upgrading to boost 1.85, the compiler was not able to find "#include ", I checked this file is not present in the new version. Hence, I have commented header file inclusion in my code.

I am building the code for MSVC142 (C++14) for 64-bit Windows 10 architecture.

I think it has already been reported and fixed: https://github.com/boostorg/core/issues/173

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