This repository has been archived by the owner on Apr 23, 2020. It is now read-only.
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Avoid eager template instantiation caused by the variant narrowing ch…
…ecks. The standard disallows narrowing conversions when constructing a variant. This is checked by attempting to perform braced initialization of the destination type from the argument type. However, braced initialization can force the compiler (mostly clang) to eagerly instantiate the constructors of the destintation type -- which can lead to errors in a non-immediate context. However, as variant is currently specified, the narrowing checks only observably apply when the destination type is arithmetic. Meaning we can skip the check for class types. Hense avoiding the hard errors. In order to cause fewer build breakages, this patch avoids the narrowing check except when the destination type is arithmetic. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@366022 91177308-0d34-0410-b5e6-96231b3b80d8
- Loading branch information