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The {fmt} library for the upcoming C++ 20 standard compiles under MSVC, but not Intel unless /Qipo is switched on

Tolmie__Shane
Beginner
‎09-14-2019 10:58 AM
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The Intel Compiler v19.0 has a bug where it fails to link in pre-compiled header mode, unless Interprocedural Optimization: Multi-File (/Qipo) is switched on. This bug is not present in MSVC.

https://github.com/fmtlib/fmt/issues/1295

If you wish, I can provide a sample project if you cannot reproduce the issue.

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Viet_H_Intel
Moderator
‎09-18-2019 04:57 AM
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What version of VS2017 are you using? Please provide us a sample test case.

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For more complete information about compiler optimizations, see our Optimization Notice.