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* [Bug libstdc++/58952] New: Construct "std::getchar()" rejected when getchar is macro in C library @ 2013-11-01 2:51 michael at talamasca dot ocis.net 2013-11-01 10:36 ` [Bug libstdc++/58952] " redi at gcc dot gnu.org ` (5 more replies) 0 siblings, 6 replies; 7+ messages in thread From: michael at talamasca dot ocis.net @ 2013-11-01 2:51 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58952 Bug ID: 58952 Summary: Construct "std::getchar()" rejected when getchar is macro in C library Product: gcc Version: 4.8.2 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libstdc++ Assignee: unassigned at gcc dot gnu.org Reporter: michael at talamasca dot ocis.net On my system, the following C++ code refuses to compile: #include <cstdio> int foo (void) { return std::getchar(); } The immediate cause is that getchar() is a macro in my underlying C library (uClibc-0.9.33.2). Changing it to (std::getchar)() works. Looking at the /usr/include/c++/4.8.2/cstdio file, there are a number of #undef directives apparently intended to prevent similar problems with other stdio functions. But there is no #undef for getchar. GNU automake's test suite uses this construct as part of a test to make sure that a C++ file generated using yacc actually reaches a C++ compiler and not a C one. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/58952] Construct "std::getchar()" rejected when getchar is macro in C library 2013-11-01 2:51 [Bug libstdc++/58952] New: Construct "std::getchar()" rejected when getchar is macro in C library michael at talamasca dot ocis.net @ 2013-11-01 10:36 ` redi at gcc dot gnu.org 2013-11-01 10:36 ` redi at gcc dot gnu.org ` (4 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: redi at gcc dot gnu.org @ 2013-11-01 10:36 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58952 --- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- Oh sorry, I didn't read your report properly - so we're missing the #undef that would fix it ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/58952] Construct "std::getchar()" rejected when getchar is macro in C library 2013-11-01 2:51 [Bug libstdc++/58952] New: Construct "std::getchar()" rejected when getchar is macro in C library michael at talamasca dot ocis.net 2013-11-01 10:36 ` [Bug libstdc++/58952] " redi at gcc dot gnu.org @ 2013-11-01 10:36 ` redi at gcc dot gnu.org 2013-11-01 10:48 ` paolo.carlini at oracle dot com ` (3 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: redi at gcc dot gnu.org @ 2013-11-01 10:36 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58952 --- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- That's a bug in uclibc, it should be a function (not a macro) in C++ ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/58952] Construct "std::getchar()" rejected when getchar is macro in C library 2013-11-01 2:51 [Bug libstdc++/58952] New: Construct "std::getchar()" rejected when getchar is macro in C library michael at talamasca dot ocis.net 2013-11-01 10:36 ` [Bug libstdc++/58952] " redi at gcc dot gnu.org 2013-11-01 10:36 ` redi at gcc dot gnu.org @ 2013-11-01 10:48 ` paolo.carlini at oracle dot com 2013-11-01 11:11 ` paolo at gcc dot gnu.org ` (2 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: paolo.carlini at oracle dot com @ 2013-11-01 10:48 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58952 Paolo Carlini <paolo.carlini at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2013-11-01 Assignee|unassigned at gcc dot gnu.org |paolo.carlini at oracle dot com Target Milestone|--- |4.8.3 Ever confirmed|0 |1 --- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> --- Weird that nobody noticed for so many years. Let's add the undef. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/58952] Construct "std::getchar()" rejected when getchar is macro in C library 2013-11-01 2:51 [Bug libstdc++/58952] New: Construct "std::getchar()" rejected when getchar is macro in C library michael at talamasca dot ocis.net ` (2 preceding siblings ...) 2013-11-01 10:48 ` paolo.carlini at oracle dot com @ 2013-11-01 11:11 ` paolo at gcc dot gnu.org 2013-11-01 11:17 ` paolo.carlini at oracle dot com 2013-11-01 11:17 ` paolo at gcc dot gnu.org 5 siblings, 0 replies; 7+ messages in thread From: paolo at gcc dot gnu.org @ 2013-11-01 11:11 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58952 --- Comment #4 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> --- Author: paolo Date: Fri Nov 1 11:10:55 2013 New Revision: 204291 URL: http://gcc.gnu.org/viewcvs?rev=204291&root=gcc&view=rev Log: 2013-11-01 Paolo Carlini <paolo.carlini@oracle.com> PR libstdc++/58952 * include/c_global/cstdio: Undef getchar. Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/include/c_global/cstdio ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/58952] Construct "std::getchar()" rejected when getchar is macro in C library 2013-11-01 2:51 [Bug libstdc++/58952] New: Construct "std::getchar()" rejected when getchar is macro in C library michael at talamasca dot ocis.net ` (3 preceding siblings ...) 2013-11-01 11:11 ` paolo at gcc dot gnu.org @ 2013-11-01 11:17 ` paolo.carlini at oracle dot com 2013-11-01 11:17 ` paolo at gcc dot gnu.org 5 siblings, 0 replies; 7+ messages in thread From: paolo.carlini at oracle dot com @ 2013-11-01 11:17 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58952 Paolo Carlini <paolo.carlini at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED Assignee|paolo.carlini at oracle dot com |unassigned at gcc dot gnu.org --- Comment #6 from Paolo Carlini <paolo.carlini at oracle dot com> --- Fixed mainline and 4.8.3. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/58952] Construct "std::getchar()" rejected when getchar is macro in C library 2013-11-01 2:51 [Bug libstdc++/58952] New: Construct "std::getchar()" rejected when getchar is macro in C library michael at talamasca dot ocis.net ` (4 preceding siblings ...) 2013-11-01 11:17 ` paolo.carlini at oracle dot com @ 2013-11-01 11:17 ` paolo at gcc dot gnu.org 5 siblings, 0 replies; 7+ messages in thread From: paolo at gcc dot gnu.org @ 2013-11-01 11:17 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58952 --- Comment #5 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> --- Author: paolo Date: Fri Nov 1 11:16:56 2013 New Revision: 204292 URL: http://gcc.gnu.org/viewcvs?rev=204292&root=gcc&view=rev Log: 2013-11-01 Paolo Carlini <paolo.carlini@oracle.com> PR libstdc++/58952 * include/c_global/cstdio: Undef getchar. Modified: branches/gcc-4_8-branch/libstdc++-v3/ChangeLog branches/gcc-4_8-branch/libstdc++-v3/include/c_global/cstdio ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2013-11-01 11:17 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2013-11-01 2:51 [Bug libstdc++/58952] New: Construct "std::getchar()" rejected when getchar is macro in C library michael at talamasca dot ocis.net 2013-11-01 10:36 ` [Bug libstdc++/58952] " redi at gcc dot gnu.org 2013-11-01 10:36 ` redi at gcc dot gnu.org 2013-11-01 10:48 ` paolo.carlini at oracle dot com 2013-11-01 11:11 ` paolo at gcc dot gnu.org 2013-11-01 11:17 ` paolo.carlini at oracle dot com 2013-11-01 11:17 ` paolo at gcc dot gnu.org
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