HElib搭建问题
一、搭建
在虚拟器中搭建HElib我就不赘述了，可以依照官网教程和博客搭建。
二、问题
前面环境都搭建好了，接下来运行样例程序的时候遇到的问题。
运行的BGV_packed_arithmetic样例程序时候，遇到如下问题：
wbw@wbw-virtual-machine:~/Desktop/HElib-master/examples/BGV_packed_arithmetic$ make
[ 50%] Building CXX object CMakeFiles/BGV_packed_arithmetic.dir/BGV_packed_arithmetic.cpp.o
In file included from /usr/local/include/helib/IndexSet.h:21:0,
from /usr/local/include/helib/IndexMap.h:20,
from /usr/local/include/helib/DoubleCRT.h:34,
from /usr/local/include/helib/helib.h:22,
from /home/wbw/Desktop/HElib-master/examples/BGV_packed_arithmetic/BGV_packed_arithmetic.cpp:20:
/usr/local/include/helib/JsonWrapper.h:11:35: error: ‘any’ in namespace ‘std’ does not name a type
explicit JsonWrapper(const std::any& json_repr) : json_obj(json_repr) {}
^~~
/usr/local/include/helib/JsonWrapper.h:13:14: error: ‘any’ in namespace ‘std’ does not name a type
const std::any& getJSONobj() const { return json_obj; }
^~~
/usr/local/include/helib/JsonWrapper.h:23:8: error: ‘any’ in namespace ‘std’ does not name a type
std::any json_obj;
^~~
/usr/local/include/helib/JsonWrapper.h: In constructor ‘helib::JsonWrapper::JsonWrapper(const int&)’:
/usr/local/include/helib/JsonWrapper.h:11:53: error: class ‘helib::JsonWrapper’ does not have any field named ‘json_obj’
explicit JsonWrapper(const std::any& json_repr) : json_obj(json_repr) {}
^~~~~~~~
/usr/local/include/helib/JsonWrapper.h: In member function ‘helib::JsonWrapper::operator bool() const’:
/usr/local/include/helib/JsonWrapper.h:12:43: error: ‘json_obj’ was not declared in this scope
explicit operator bool() const { return json_obj.has_value(); }
^~~~~~~~
In file included from /usr/local/include/helib/Context.h:27:0,
from /usr/local/include/helib/helib.h:23,
from /home/wbw/Desktop/HElib-master/examples/BGV_packed_arithmetic/BGV_packed_arithmetic.cpp:20:
/usr/local/include/helib/scheme.h: At global scope:
/usr/local/include/helib/scheme.h:39:25: error: ‘string_view’ in namespace ‘std’ does not name a type
static constexpr std::string_view schemeName = "CKKS";
^~~~~~~~~~~
/usr/local/include/helib/scheme.h:56:25: error: ‘string_view’ in namespace ‘std’ does not name a type
static constexpr std::string_view schemeName = "BGV";
^~~~~~~~~~~
In file included from /usr/local/include/helib/helib.h:23:0,
from /home/wbw/Desktop/HElib-master/examples/BGV_packed_arithmetic/BGV_packed_arithmetic.cpp:20:
/usr/local/include/helib/Context.h:212:22: error: ‘optional’ in namespace ‘std’ does not name a template type
const std::optional<ModChainParams>& mparams,
^~~~~~~~
/usr/local/include/helib/Context.h:212:30: error: expected ‘,’ or ‘...’ before ‘<’ token
const std::optional<ModChainParams>& mparams,
^
/usr/local/include/helib/Context.h:244:25: error: ‘string_view’ in namespace ‘std’ does not name a type
static constexpr std::string_view typeName = "Context";
^~~~~~~~~~~
/usr/local/include/helib/Context.h:1057:24: error: ‘optional’ is not a member of ‘std’
const std::pair<std::optional<Context::ModChainParams>,
^~~~~~~~
/usr/local/include/helib/Context.h:1057:24: note: suggested alternative: ‘internal’
const std::pair<std::optional<Context::ModChainParams>,
^~~~~~~~
internal
/usr/local/include/helib/Context.h:1057:24: error: ‘optional’ is not a member of ‘std’
/usr/local/include/helib/Context.h:1057:24: note: suggested alternative: ‘internal’
const std::pair<std::optional<Context::ModChainParams>,
^~~~~~~~
internal
/usr/local/include/helib/Context.h:1057:56: error: wrong number of template arguments (1, should be 2)
const std::pair<std::optional<Context::ModChainParams>,
^
In file included from /usr/include/c++/7/bits/stl_algobase.h:64:0,
from /usr/include/c++/7/bits/char_traits.h:39,
from /usr/include/c++/7/ios:40,
from /usr/include/c++/7/ostream:38,
from /usr/include/c++/7/iostream:39,
from /home/wbw/Desktop/HElib-master/examples/BGV_packed_arithmetic/BGV_packed_arithmetic.cpp:18:
/usr/include/c++/7/bits/stl_pair.h:208:12: note: provided for ‘template<class _T1, class _T2> struct std::pair’
struct pair
^~~~
In file included from /usr/local/include/helib/helib.h:23:0,
from /home/wbw/Desktop/HElib-master/examples/BGV_packed_arithmetic/BGV_packed_arithmetic.cpp:20:
/usr/local/include/helib/Context.h:1057:57: error: expected unqualified-id before ‘,’ token
const std::pair<std::optional<Context::ModChainParams>,
^
/usr/local/include/helib/Context.h:1094:25: error: ‘string_view’ in namespace ‘std’ does not name a type
static constexpr std::string_view typeName = "ContextBuilder";
^~~~~~~~~~~
In file included from /usr/local/include/helib/helib.h:24:0,
from /home/wbw/Desktop/HElib-master/examples/BGV_packed_arithmetic/BGV_packed_arithmetic.cpp:20:
/usr/local/include/helib/Ctxt.h:510:25: error: ‘string_view’ in namespace ‘std’ does not name a type
static constexpr std::string_view typeName = "Ctxt";
^~~~~~~~~~~
In file included from /usr/local/include/helib/helib.h:25:0,
from /home/wbw/Desktop/HElib-master/examples/BGV_packed_arithmetic/BGV_packed_arithmetic.cpp:20:
/usr/local/include/helib/keySwitching.h:93:25: error: ‘string_view’ in namespace ‘std’ does not name a type
static constexpr std::string_view typeName = "KeySwitch";
^~~~~~~~~~~
In file included from /usr/local/include/helib/helib.h:26:0,
from /home/wbw/Desktop/HElib-master/examples/BGV_packed_arithmetic/BGV_packed_arithmetic.cpp:20:
/usr/local/include/helib/keys.h:77:25: error: ‘string_view’ in namespace ‘std’ does not name a type
static constexpr std::string_view typeName = "PubKey";
^~~~~~~~~~~
/usr/local/include/helib/keys.h:322:25: error: ‘string_view’ in namespace ‘std’ does not name a type
static constexpr std::string_view typeName = "SecKey";
^~~~~~~~~~~
In file included from /usr/local/include/helib/helib.h:27:0,
from /home/wbw/Desktop/HElib-master/examples/BGV_packed_arithmetic/BGV_packed_arithmetic.cpp:20:
/usr/local/include/helib/EncryptedArray.h:2173:25: error: ‘string_view’ in namespace ‘std’ does not name a type
static constexpr std::string_view typeName = "PtxtArray";
^~~~~~~~~~~
In file included from /usr/local/include/helib/helib.h:28:0,
from /home/wbw/Desktop/HElib-master/examples/BGV_packed_arithmetic/BGV_packed_arithmetic.cpp:20:
/usr/local/include/helib/Ptxt.h:199:25: error: ‘string_view’ in namespace ‘std’ does not name a type
static constexpr std::string_view typeName = "Ptxt";
^~~~~~~~~~~
/home/wbw/Desktop/HElib-master/examples/BGV_packed_arithmetic/BGV_packed_arithmetic.cpp: In function ‘int main(int, char**)’:
/home/wbw/Desktop/HElib-master/examples/BGV_packed_arithmetic/BGV_packed_arithmetic.cpp:59:39: error: use of deleted function ‘helib::Context::Context(helib::Context&&)’
.build();
^
In file included from /usr/local/include/helib/helib.h:23:0,
from /home/wbw/Desktop/HElib-master/examples/BGV_packed_arithmetic/BGV_packed_arithmetic.cpp:20:
/usr/local/include/helib/Context.h:671:3: note: declared here
Context(Context&& other) = delete;
^~~~~~~
CMakeFiles/BGV_packed_arithmetic.dir/build.make:62: recipe for target 'CMakeFiles/BGV_packed_arithmetic.dir/BGV_packed_arithmetic.cpp.o' failed
make[2]: *** [CMakeFiles/BGV_packed_arithmetic.dir/BGV_packed_arithmetic.cpp.o] Error 1
CMakeFiles/Makefile2:75: recipe for target 'CMakeFiles/BGV_packed_arithmetic.dir/all' failed
make[1]: *** [CMakeFiles/BGV_packed_arithmetic.dir/all] Error 2
Makefile:83: recipe for target 'all' failed
make: *** [all] Error 2
三、解决
经大神帮助，发现是由于样例程序是使用C++17新特性带来的问题，因此需要在你的运行 CMakeLists.txt添加下列语句
wbw@wbw-virtual-machine:~/Desktop/HElib-master/examples/BGV_packed_arithmetic$ ls
BGV_packed_arithmetic CMakeCache.txt cmake_install.cmake helib.log
BGV_packed_arithmetic.cpp CMakeFiles CMakeLists.txt Makefile
wbw@wbw-virtual-machine:~/Desktop/HElib-master/examples/BGV_packed_arithmetic$ vim CMakeCache.txt
添加内容
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
find_package(helib)
add_executable(BGV_packed_arithmetic BGV_packed_arithmetic.cpp)
target_link_libraries(BGV_packed_arithmetic helib)
运行成功截图
