Which versions of gdb and gcc allow watching rvalue references?

问题

I am using GDB 7.8.0.20140729-cvs and GCC 4.8.2. Whenever I try to print the value of a variable referenced by an rvalue reference, I get an error from the debugger complaining about an unknown type, forcing me to manually cast the T && to a T *.

Are there newer versions of these where this bug is fixed? Ideally I'd prefer not to upgrade GCC if I don't have to?

回答1:

Are there newer versions of these where this bug is fixed?

No.

Upgrading GCC won't help because it is already doing the right thing (emitting DWARF DW_TAG_rvalue_reference_type entries).

But GDB's handling of rvalue references is still broken even in the latest Git sources.

The relevant bug is https://sourceware.org/bugzilla/show_bug.cgi?id=14441

来源：https://stackoverflow.com/questions/28965431/which-versions-of-gdb-and-gcc-allow-watching-rvalue-references