On Aug 17 11:04, Ryan Johnson wrote: > Hi all, > > I'm using the experimental gcc-4.5 package and hit a strange error: > c++0x mode suppresses the definition of the v*printf() family of > functions in stdio.h in c++0x mode. The offending code seems to be: > > #if !defined(__STRICT_ANSI__) || (__STDC_VERSION__ >= 199901L) > #ifndef _REENT_ONLY > ... > int _EXFUN(vsnprintf, (char *, size_t, const char *, __VALIST) > _ATTRIBUTE ((__format__ (__printf__, 3, 0)))); > ... > #endif > #endif > > Running `g++ -std=c++0x -dM -E' indicates that __STRICT_ANSI__ is > defined while _REENT_ONLY and __STDC_VERSION__ are not. > > Oddly, functions like _vsnprintf_r are still available for some > strange reason (aren't they extensions?). I hope this is a bug > rather than a requirement of the new standard; meanwhile, using > std=gnu++0x works around the problem.
If I try that with Yaakov's 4.5.3 cross compilers, then __STRICT_ANSI__ is not defined with -std=c__0x, unless I also specify `-ansi' on the command line. However, there's a weird warning: $ i686-pc-cygwin-g++ -std=c++0x -dM -E - < /dev/null | grep ANSI cc1: warning: command line option "-std=c++0x" is valid for C++/ObjC++ but not for C Well, sure, that's why I called g++, not gcc... Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Project Co-Leader cygwin AT cygwin DOT com Red Hat -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
