Bug 49120
| Summary: | C++ code including <complex> fails when using -pedantic due to hypot redeclaration. | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Retired] Red Hat Linux | Reporter: | Mumit Khan <khan> | ||||
| Component: | libstdc++ | Assignee: | Jakub Jelinek <jakub> | ||||
| Status: | CLOSED CURRENTRELEASE | QA Contact: | |||||
| Severity: | high | Docs Contact: | |||||
| Priority: | medium | ||||||
| Version: | 7.1 | ||||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | i386 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2004-03-08 13:49:36 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
|
||||||
Created attachment 23587 [details]
C++ <complex> hypot bug description, with preprocessed source.
Will be fixed in libstdc++-devel-2.96-95 (is already in my tree). Fix confirmed in libstdc++-3.3.2-1. |
Bug details: ============ Even the most trivial C++ program that includes <complex> fails to compile in combination with -pedantic due to conflicting declaration of hypot(). System and GCC RPM information =============================== $ cat /etc/issue Red Hat Linux release 7.1 (Seawolf) Kernel 2.4.3-12 on an i686 [ All packages up-to-date as of 2001-07-12 using up2date ] $ rpm -qa|grep gcc gcc-objc-2.96-85 gcc-2.96-85 gcc-g77-2.96-85 gcc-c++-2.96-85 gcc-chill-2.96-85 gcc-java-2.96-85 $ rpm -qa|grep libstdc++ libstdc++-2.96-85 libstdc++-devel-2.96-85 Source ====== $ cat hypot-bug.cc #include <complex> Compiler invocation and error output ==================================== $ gcc -c -v -save-temps -pedantic hypot-bug.cc Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/2.96/specs gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-85) /usr/lib/gcc-lib/i386-redhat-linux/2.96/cpp0 -lang-c++ -D__GNUG__=2 -D__EXCEPTIONS -v -D__GNUC__=2 -D__GNUC_MINOR__=96 -D__GNUC_PATCHLEVEL__=0 -D__ELF__ -Dunix -Dlinux -D__ELF__ -D__unix__ -D__linux__ -D__unix -D__linux -Asystem(posix) -D__NO_INLINE__ -pedantic -Acpu(i386) -Amachine(i386) -Di386 -D__i386 -D__i386__ -D__tune_i386__ hypot-bug.cc hypot-bug.ii GNU CPP version 2.96 20000731 (Red Hat Linux 7.1 2.96-85) (cpplib) (i386 Linux/ELF) ignoring nonexistent directory "/usr/local/include" ignoring nonexistent directory "/usr/i386-redhat-linux/include" #include "..." search starts here: #include <...> search starts here: /usr/include/g++-3 /usr/lib/gcc-lib/i386-redhat-linux/2.96/include /usr/include End of search list. /usr/lib/gcc-lib/i386-redhat-linux/2.96/cc1plus hypot-bug.ii -quiet -dumpbase hypot-bug.cc -pedantic -version -o hypot-bug.s GNU C++ version 2.96 20000731 (Red Hat Linux 7.1 2.96-85) (i386-redhat-linux) compiled by GNU C version 2.96 20000731 (Red Hat Linux 7.1 2.96-85). In file included from /usr/include/g++-3/complex:7, from hypot-bug.cc:1: /usr/include/g++-3/std/complext.h:314: declaration of `double hypot (double, double)' throws different exceptions /usr/include/bits/mathcalls.h:150: than previous declaration `double hypot (double, double) throw ()'