xcode16.1beta compile error

Question

frankwu OP

Created Aug ’24

Replies 3

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Participants 2

SDK has some compile errors, when it can be fixed? We want to develop iOS 18 new features in our application.

/Users/***/XcodeBeta/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.1.sdk/usr/include/c++/v1/__type_traits/is_arithmetic.h:24:29 'std::is_arithmetic<float>' has different definitions in different modules; defined here
/Users/***/XcodeBeta/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.1.sdk/usr/include/c++/v1/__type_traits/is_integral.h:53:29 'std::is_integral<double>' has different definitions in different modules; defined here

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Answer 1

lifjoy OP

Sep ’24

I'm experiencing the same fatal compile error with iOS 18 RC and Xcode 16 RC:

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator18.0.sdk/usr/include/c++/v1/__type_traits/is_integral.h:53:29 'std::is_integral<double>' has different definitions in different modules; definition in module 'std_private_type_traits_is_integral' is here

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.0.sdk/usr/include/c++/v1/__type_traits/is_integral.h:53:29 'std::is_integral<double>' has different definitions in different modules; definition in module 'std_private_type_traits_is_integral' is here

I don't know how to resolve this since the issue involves the is_integral.h file which is part of the Foundation include. This appears to be an Xcode 16 bug.

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Answer 2

lifjoy OP

Sep ’24

Meanwhile, I found a solution to run Xcode 15 on Sequoia.

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Answer 3

lifjoy OP

3w

Update: I was finally able to fix this issue by changing the project's Build Settings > Apple Clang Language C++ > C++ Language Dialect to "GNU++23" (from "Compiler Default").

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