我正在尝试编译最初使用tr1 / unordered_map的项目。我删除了对tr1命名空间的所有引用,现在只使用unordered_map(例如#include <tr1/unordered_map>
变为#include <unordered_map>
)。但是,我收到编译错误。配置完毕后:
CXXR is now configured for x86_64-apple-darwin13.2.0
Source directory: .
Installation directory: /Library/Frameworks
C compiler: gcc -g -O2 -fexceptions
Fortran 77 compiler: gfortran -g -O2
C++ compiler: g++ -g -O2 -Wno-attributes -std=c++11
Fortran 90/95 compiler: gfortran -g -O2
Obj-C compiler: gcc -g -O2 -fobjc-exceptions
Interfaces supported: X11, aqua, tcltk
External libraries: readline, ICU
Additional capabilities: PNG, JPEG, TIFF, NLS
CR Options enabled: framework, shared BLAS, R profiling
CXXR Options enabled:
Recommended packages: yes
当我尝试编译项目时,我遇到了错误:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/c++/v1/unordered_map:724:5: error: static_assert failed "Invalid allocator::value_type"
static_assert((is_same<value_type, typename allocator_type::value_type>::value),
Environment.cpp:104:5: note: in instantiation of template class 'std::__1::unordered_map<const CXXR::Symbol *, CXXR::Frame::Binding *, std::__1::hash<const CXXR::Symbol *>,
std::__1::equal_to<const CXXR::Symbol *>, CXXR::Allocator<std::__1::pair<const CXXR::Symbol *, CXXR::Frame::Binding *> > >' requested here
delete s_search_path_cache;
s_search_path_cache
定义为:
typedef
std::unordered_map<const Symbol*, Frame::Binding*,
std::hash<const Symbol*>,
std::equal_to<const Symbol*>,
CXXR::Allocator<std::pair<const Symbol*, Frame::Binding*> >
> Cache;
static Cache* s_search_path_cache;
我能够找到针对类似问题(https://issues.apache.org/ooo/show_bug.cgi?id=124422)的Apache OpenOffice的错误报告,但是无法使用它来解决我的问题。如果有人有任何想法我会非常感激。
答案 0 :(得分:2)
您在分配器(第二个)中错过了一个讨厌的const
:
CXXR::Allocator<std::pair<const Symbol* const, Frame::Binding*> >