- Clang / libc++ require standard library names to be defined in a
special namespace. If they are simply declared in namespace std,
strange errors can occur. This caused problems with std::span. Update
pw_polyfill to add a macro that provides the std namespace
declaration.
- Update pw_polyfill and pw_minimal_cpp_stdlib to use the new std
namespace macro.
- Fully isolate the pw_minimal_cpp_stdlib library tests from the rest of
Pigweed, since Pigweed builds with the standard library. This prevents
isolates potentially conflicting standard library defintions.
Change-Id: I1a095e8ac879757ffba6796239e70785cc328cd7
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/13240
Reviewed-by: Rob Mohr <mohrr@google.com>
Reviewed-by: David Rogers <davidrogers@google.com>
Commit-Queue: Wyatt Hepler <hepler@google.com>
pw_minimal_cpp_stdlib is an extremely limited, non-standard
implementation of the C++ Standard Library. It requires C++17 and a C
standard library.
Change-Id: I2d0b8d6cf49730e2c746eddf2c4a23308af1eb6a
