| Summary: | (Deque) Iterators are not typesafe | ||
|---|---|---|---|
| Product: | gcc | Reporter: | Peter Schmid <schmid> |
| Component: | libstdc++ | Assignee: | Paolo Carlini <paolo.carlini> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | CC: | gcc-bugs, jakub, pcarlini |
| Priority: | P3 | ||
| Version: | 3.1 | ||
| Target Milestone: | --- | ||
| Host: | i686-pc-linux-gnu | Target: | i686-pc-linux-gnu |
| Build: | i686-pc-linux-gnu | Known to work: | |
| Known to fail: | Last reconfirmed: | ||
gcc 3.1 rejects the comparison of a deque iterator versus a const deque iterator. There is no problem when the order of the iterators is changed. This is a regression with respect to STLport. Release: 3.1 20020427 (prerelease) Environment: System: Linux kiste 2.4.18 #8 Sat Mar 9 15:33:15 CET 2002 i686 unknown Architecture: i686 SuSE 7.3 host: i686-pc-linux-gnu build: i686-pc-linux-gnu target: i686-pc-linux-gnu configured with: ../gcc/configure --enable-shared --disable-nls --enable-threads=posix --enable-languages=c,c++,f77,objc How-To-Repeat: source code tb3.C #include <deque> int main() { using namespace std; deque<int> d(2); deque<int>::iterator i; deque<int>::const_iterator ci; i = d.begin(); ci = d.begin(); if (i == ci) {} if (ci == i) {} } g++ -v -W -Wall tb3.C Reading specs from /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.1/specs Configured with: ../gcc/configure --enable-shared --disable-nls --enable-threads=posix --enable-languages=c,c++,f77,objc Thread model: posix gcc version 3.1 20020427 (prerelease) /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.1/cc1plus -v -D__GNUC__=3 -D__GNUC_MINOR__=1 -D__GNUC_PATCHLEVEL__=0 -D__ELF__ -Dunix -D__gnu_linux__ -Dlinux -D__ELF__ -D__unix__ -D__gnu_linux__ -D__linux__ -D__unix -D__linux -Asystem=posix -D__NO_INLINE__ -D__STDC_HOSTED__=1 -D_GNU_SOURCE -Acpu=i386 -Amachine=i386 -Di386 -D__i386 -D__i386__ -D__tune_i686__ -D__tune_pentiumpro__ tb3.C -D__GNUG__=3 -D__DEPRECATED -D__EXCEPTIONS -D__GXX_ABI_VERSION=100 -quiet -dumpbase tb3.C -W -Wall -version -o /tmp/cc520xTS.s GNU CPP version 3.1 20020427 (prerelease) (cpplib) (i386 Linux/ELF) GNU C++ version 3.1 20020427 (prerelease) (i686-pc-linux-gnu) compiled by GNU C version 3.1 20020427 (prerelease). ignoring nonexistent directory "NONE/include" ignoring nonexistent directory "/usr/local/i686-pc-linux-gnu/include" #include "..." search starts here: #include <...> search starts here: /usr/local/include/g++-v3 /usr/local/include/g++-v3/i686-pc-linux-gnu /usr/local/include/g++-v3/backward /usr/local/include /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.1/include /usr/include End of search list. tb3.C: In function `int main()': tb3.C:13: no match for `std::_Deque_iterator<int, int&, int*>& == std::_Deque_iterator<int, const int&, const int*>&' operator /usr/local/include/g++-v3/bits/stl_deque.h:197: candidates are: bool std::_Deque_iterator<_Tp, _Ref, _Ptr>::operator==(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&) const [with _Tp = int, _Ref = int&, _Ptr = int*]