ndebug
setting now controls C++ stdlib assertionsThe ndebug
setting, if disabled, now passes preprocessor defines to enable debugging assertions within the C++ standard library.
For GCC, -D_GLIBCXX_ASSERTIONS=1
is set.
For Clang, -D_GLIBCXX_ASSERTIONS=1
is set to cover libstdc++ usage, and -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE
or -D_LIBCPP_ENABLE_ASSERTIONS=1
is used depending on the Clang version.