Including any C++ header puts all C functions in the global namespace. This code compiles and runs without errors or warnings: #include <iostream> int main(void) { printf("test\n"); }
Two things, first this is a dup of PR 6257 (which is one of the most report bugs and that means is on http://gcc.gnu.org/bugzilla/duplicates.cgi, please next time read that list). Second, this might become valid to do, see: http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-active.html#456 Which is an open defect agains the standard. *** This bug has been marked as a duplicate of 6257 ***
Subject: RE: Including C++ header declares C functions >Two things, first this is a dup of PR 6257 (which is one of the most report >bugs and that means is on http://gcc.gnu.org/bugzilla/duplicates.cgi, >please >next time read that list). > >Second, this might become valid to do, see: >http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-active.html#456 > >Which is an open defect agains the standard. I don't think this is the same bug. I can see how including <cstdio> would declare printf but why in the world would including <iostream> or <vector> declare printf, strcpy, etc. Again, this is the code: #include <vector> int main(void) { printf("test\n"); } I didn't include any C headers at all. If I comment out the include statement GCC complains as it should. Please respond if you still think this is the same issue as bug 6257. Thanks for your time. _________________________________________________________________ Powerful Parental Controls Let your child discover the best the Internet has to offer. http://join.msn.com/?pgmarket=en-ca&page=byoa/prem&xAPID=1994&DI=1034&SU=http://hotmail.com/enca&HL=Market_MSNIS_Taglines Start enjoying all the benefits of MSN® Premium right now and get the first two months FREE*.
(In reply to comment #2) > I don't think this is the same bug. I can see how including <cstdio> would > declare printf but why in the world would including <iostream> or <vector> > declare printf, strcpy, etc. This is definitely allowed by the Standard. It's the same bug.