There are 1 repository under libstdcxx topic.
(XCODE10移除了libstdc++,需要增加缺失的文件适配老程序)XCODE 10 REMOVED libstdc++ , NEED TO ADD SOME FILES TO SUPPORT
A benchmark for standard libraries
Headers from GCC's libstdc++ that can be used in a freestanding environment.
centos7 libstdc++.so.6(x86_64 and aarch64)
Experimental repackaging of the C++ standard library as modules