Ubuntu
gcc-4.3 package

<cstdio> doesn't contain vasprintf() and asprintf()

Bug #332115 reported by Uqbar on 2009-02-20

Affects		Status	Importance	Assigned to	Milestone
	gcc	Invalid	Medium	gcc-bugzilla #39542
	gcc-4.3 (Ubuntu)	Invalid	Low	Unassigned

Bug Description

Binary package hint: libstdc++6-4.3-dev

While the documentation states that vasprintf and asprintf belong to the the <stdio.h> header, the C++ header <cstdio> doesn't contain any definition to them, thus forcing one to also #include <stdio.h>

'lsb_release -rd'
Description: Ubuntu 8.10
Release: 8.10

g++ -v:
Using built-in specs.
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 4.3.2-1ubuntu12' --with-bugurl=file:///usr/share/doc/gcc-4.3/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --enable-nls --with-gxx-include-dir=/usr/include/c++/4.3 --program-suffix=-4.3 --enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc --enable-mpfr --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.3.2 (Ubuntu 4.3.2-1ubuntu12)

Revision history for this message

Uqbar (uqbar) wrote on 2009-02-26:

/usr/include/c++/4.3.2/cstdio Edit (5.0 KiB, text/plain)

I attach the current actual <cstdio> file here below.

Matthias Klose (doko) on 2009-03-24

Changed in gcc-4.3 (Ubuntu):
importance:	Undecided → Low
status:	New → Triaged

Bug Watch Updater (bug-watch-updater) on 2009-03-24

Changed in gcc:
status:	Unknown → New

Revision history for this message

Matthias Klose (doko) wrote on 2009-03-24:

closed as invalid by upstream:
> This is definitely not a bug. Note, in our implementation <stdio.h> is included
> anyway from <cstdio> as an implementation detail.

Changed in gcc-4.3 (Ubuntu):
status:	Triaged → Invalid

Revision history for this message

Uqbar (uqbar) wrote on 2009-03-24:

So why vasprintf() and asprintf() are not available after inclusion of <cstdio>?
In <stdio.h> vasprintf() and asprintf() get declared within
#ifdef __USE_GNU
....
#endif

Bug Watch Updater (bug-watch-updater) on 2009-03-25

Changed in gcc:
status:	New → Invalid

Revision history for this message

Uqbar (uqbar) wrote on 2009-03-25:

In C and C++ if I #include <stdio.h> I get asprintf() and vasprintf().
In C++ if I #include <cstdio> I DON'T get asprintf() and vasprintf().
If this is not a wanted feature, it'd definitely be a bug.
If it's not, who is the maintainer?

Quoting from the cstdio file:

/** @file include/cstdio
* This is a Standard C++ Library file. You should @c #include this file
* in your programs, rather than any of the "*.h" implementation files.
*
* This is the C++ version of the Standard C Library header @c stdio.h,
* and its contents are (mostly) the same as that header, but are all
* contained in the namespace @c std (except for names which are defined
* as macros in C).
*/