2009/4/29 Joseph S. Myers <jos...@codesourcery.com>: > On Wed, 29 Apr 2009, Manuel López-Ibáñez wrote: > >> >> BTW, why is this warned about? >> > >> > I imagine because in C it is not conventional to use "extern" when >> > defining something, only on a declaration that is not a definition. >> >> But may it lead to some confusion or subtle error? It seems overly >> pedantic to me if it is just a matter of style, because extern is >> implicit if missing, > > "int i;" is not the same as "extern int i;".
Sorry for my ignorance but I have been reading and searching for the answer and I cannot tell what is the difference between "int i = 1" and "extern int i = 1" at file-scope in C. Would you or someone else mind to point me out to the answer? Thanks in advance. Manuel.