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[Bug libstdc++/14306] New: comparison of postype and size_t breaks ACE
- From: "schmid at snake dot iap dot physik dot tu-darmstadt dot de" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 26 Feb 2004 09:07:17 -0000
- Subject: [Bug libstdc++/14306] New: comparison of postype and size_t breaks ACE
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
All the versions of ACE I have tried do not compile. Newer gcc 3.4 snapshots
reject the file Logging_Strategy.cpp with a
Logging_Strategy.cpp: In member function `virtual int
ACE_Logging_Strategy::handle_timeout(const ACE_Time_Value&, const void*)':
Logging_Strategy.cpp:371: error: `class std::streampos' used where a `size_t'
was expected.
error message. This is for the ace version 5.4.
I do not know what the standard says about the code appended below but all
compilers I have access to compile the source code without a warning. Therefore,
this problem might be a regression or ACE has to be fixed in a portable manner.
t.C
#include <bits/postypes.h>
int main()
{
std::size_t max_size;
std::streampos pos;
// if ((size_t) this->log_msg_->msg_ostream ()->tellp ()
// > this->max_size_) // ACE_wrappers/ace/Logging_strategy.cpp line 370
if ((std::size_t) pos > max_size) return 42;
}
g++ -v t.C -W -Wall -save-temps
Reading specs from /usr/local/lib/gcc/i686-pc-linux-gnu/3.4.0/specs
Configured with: ../gcc/configure --enable-threads=posix
--enable-languages=c,c++,f77,objc --enable-__cxa_atexit --enable-libstdcxx-debug
Thread model: posix
gcc version 3.4.0 20040225 (prerelease)
/usr/local/libexec/gcc/i686-pc-linux-gnu/3.4.0/cc1plus -E -quiet -v
-D_GNU_SOURCE t.C -mtune=pentiumpro -W -Wall -o t.ii
ignoring nonexistent directory "NONE/include"
ignoring nonexistent directory
"/usr/local/lib/gcc/i686-pc-linux-gnu/3.4.0/../../../../i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/local/lib/gcc/i686-pc-linux-gnu/3.4.0/../../../../include/c++/3.4.0
/usr/local/lib/gcc/i686-pc-linux-gnu/3.4.0/../../../../include/c++/3.4.0/i686-pc-linux-gnu
/usr/local/lib/gcc/i686-pc-linux-gnu/3.4.0/../../../../include/c++/3.4.0/backward
/usr/local/include
/usr/local/lib/gcc/i686-pc-linux-gnu/3.4.0/include
/usr/include
End of search list.
/usr/local/libexec/gcc/i686-pc-linux-gnu/3.4.0/cc1plus -fpreprocessed t.ii
-quiet -dumpbase t.C -mtune=pentiumpro -auxbase t -W -Wall -version -o t.s
GNU C++ version 3.4.0 20040225 (prerelease) (i686-pc-linux-gnu)
compiled by GNU C version 3.4.0 20040225 (prerelease).
GGC heuristics: --param ggc-min-expand=64 --param ggc-min-heapsize=64274
t.C: In function `int main()':
t.C:13: error: `class std::streampos' used where a `size_t' was expected
--
Summary: comparison of postype and size_t breaks ACE
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: libstdc++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: schmid at snake dot iap dot physik dot tu-darmstadt dot
de
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14306