http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52195
Bug #: 52195 Summary: <cstdio> doesn't put stdio, stderr and stdin in the std namespace Classification: Unclassified Product: gcc Version: 4.7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libstdc++ AssignedTo: unassig...@gcc.gnu.org ReportedBy: nospam.kotarou.d...@gmail.com <cstdio> doesn't seem to put stdio, stderr and stdin in the std namespace. Example: $ printf ' #include <cstdio> int main() { std::fputs("Hi there.", std::stdout); return 0; } ' | g++ -xc++ - -o - > /dev/null <stdin>: In function ‘int main()’: <stdin>:5:16: error: ‘stdout’ is not a member of ‘std’ <stdin>:5:16: note: suggested alternative: In file included from /usr/include/c++/4.7/cstdio:44:0, from <stdin>:2: /usr/include/stdio.h:166:25: note: ‘stdout’ $ g++ -v Using built-in specs. COLLECT_GCC=g++ COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.7/lto-wrapper Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.7-20120205-1' --with-bugurl=file:///usr/share/doc/gcc-4.7/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++,go --prefix=/usr --program-suffix=-4.7 --enable-shared --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.7 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-plugin --enable-objc-gc --disable-werror --with-arch-32=i686 --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu Thread model: posix gcc version 4.7.0 20120205 (experimental) [trunk revision 183903] (Ubuntu/Linaro 4.7-20120205-1)