zahed khurasani <sdzahed@xxxxxxxxx> writes: > Yes this is C and no am not using the -fno-common option. However, > DECL_COMMON is returning non-zero for both cases. Its zero only for a > declaration that includes 'static'. Hmmm, looking at the code, that could be true. I don't know if there is a way to distinguish these two cases. I assume you've tried passing both decls to debug_tree to see if it shows any difference. Ian > On Wed, Apr 4, 2012 at 2:39 PM, Ian Lance Taylor <iant@xxxxxxxxxx> wrote: >> zahed khurasani <sdzahed@xxxxxxxxx> writes: >> >>> How can I distinguish between the following two declarations (both >>> appear outside any function at file scope)? >>> >>> extern int i; >>> int i; >>> >>> Both show up as VAR_DECL nodes in the BLOCK_VARS of the >>> TRANSLATION_UNIT_DECL. Moreover, both return true for DECL_EXTERNAL. I >>> need a way to say which is which in my plugin code. >> >> I assume this is C, not C++, and that you are not using the -fno-common >> option. The "int i;" will be DECL_COMMON. >> >> Ian
