Misbehaving preprocessor directive!

[inferno-umar]

The preprocessor directive here is misbehaving in the absence of CXXABI_HEADER i.e. it stills compiles the underlying code in the absence of abi namespace, resulting in compile time error of missing abi namespace.

If this line is replaced with #if __has_include(<cxxabi.h>) the program compiles successfully!

How to reproduce
Compile a program using Poco-1.14.0 with Poco/Types.h header but make sure cxxabi.h is not in your include path!

[inferno-umar]

Also if this directive is needed it could be surrounded with #if __has_include(<cxxabi.h>) <-- this guard to mitigate the issue!

This might be a better approach...

[matejk]

@inferno-umar , which OS, compiler and compiler version do you use?

[inferno-umar]

Windows-11 (build 22631.4602) on Virtualbox & Visual Studio's LLVM(clang-cl) v17.0.3