gzip_decompressor在克利翁（CPP Boost庫）

Question

我試圖從boost documentation

#include <fstream> 
#include <iostream> 
#include <boost/iostreams/filtering_streambuf.hpp> 
#include <boost/iostreams/copy.hpp> 
#include <boost/iostreams/filter/gzip.hpp> 

int main() 
{ 
    using namespace std; 

    ifstream file("example.txt.gz", ios_base::in | ios_base::binary); 
    boost::iostreams::filtering_streambuf<boost::iostreams::input> in; 
    in.push(boost::iostreams::gzip_decompressor()); 
    in.push(file); 
    boost::iostreams::copy(in, cout); 
} 

我$brew install boost安裝升壓解壓使用示例代碼gzip文件未找到。 按照CLion documentation中的說明，我已經在CLion中包含了使用動態模板的增強庫。

但是，這個簡單的代碼不起作用。 （編輯錯誤信息）

libc++abi.dylib: terminating with uncaught exception of type boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::iostreams::gzip_error> >: gzip error: unspecified iostream_category error 

我懷疑gzip_decompressor不能被識別。

尋找一個解決方案！

編輯：

1）這是CMakeLists.txt文件。

cmake_minimum_required(VERSION 3.7) 
project(practice_cpp) 

set(CMAKE_CXX_STANDARD 11) 

set(SOURCE_FILES main.cpp) 


find_package(Boost REQUIRED COMPONENTS system iostreams) 

if(Boost_FOUND) 

    message(STATUS "Boost_INCLUDE_DIRS: ${Boost_INCLUDE_DIRS}") 
    message(STATUS "Boost_LIBRARIES: ${Boost_LIBRARIES}") 
    message(STATUS "Boost_VERSION: ${Boost_VERSION}") 

    include_directories(${Boost_INCLUDE_DIRS}) 

endif() 

add_executable(practice_cpp ${SOURCE_FILES}) 

if(Boost_FOUND) 

    target_link_libraries(practice_cpp ${Boost_LIBRARIES}) 

endif() 

2）另外，我在終端上試過這個命令。

c++ -I /usr/local/Cellar/boost/1.63.0 main.cpp -lboost_iostreams -o main 

其輸出

$ ./main 
libc++abi.dylib: terminating with uncaught exception of type boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::iostreams::gzip_error> >: gzip error: unspecified iostream_category error 
Abort trap: 6 

3）這是commands_compile.json。

[ 
{ 
    "directory": "/path/to/practice_cpp", 
    "command": "/Library/Developer/CommandLineTools/usr/bin/c++ -I/usr/local/include -g -std=gnu++11 -o CMakeFiles/practice_cpp.dir/main.cpp.o -c /path/to/practice_cpp/main.cpp", 
    "file": "/path/to/practice_cpp/main.cpp" 
} 
] 

4）$使VERBOSE = ON

$ make VERBOSE=ON 
/usr/local/Cellar/cmake/3.7.2/bin/cmake -H/path/to/practice_cpp -B/path/to/practice_cpp --check-build-system CMakeFiles/Makefile.cmake 0 
/usr/local/Cellar/cmake/3.7.2/bin/cmake -E cmake_progress_start /path/to/practice_cpp/CMakeFiles /path/to/practice_cpp/CMakeFiles/progress.marks 
/Library/Developer/CommandLineTools/usr/bin/make -f CMakeFiles/Makefile2 all 
/Library/Developer/CommandLineTools/usr/bin/make -f CMakeFiles/practice_cpp.dir/build.make CMakeFiles/practice_cpp.dir/depend 
cd /path/to/practice_cpp && /usr/local/Cellar/cmake/3.7.2/bin/cmake -E cmake_depends "Unix Makefiles" /path/to/practice_cpp /path/to/practice_cpp /path/to/practice_cpp /path/to/practice_cpp /path/to/practice_cpp/CMakeFiles/practice_cpp.dir/DependInfo.cmake --color= 
/Library/Developer/CommandLineTools/usr/bin/make -f CMakeFiles/practice_cpp.dir/build.make CMakeFiles/practice_cpp.dir/build 
make[2]: Nothing to be done for `CMakeFiles/practice_cpp.dir/build'. 
[100%] Built target practice_cpp 
/usr/local/Cellar/cmake/3.7.2/bin/cmake -E cmake_progress_start /path/to/practice_cpp/CMakeFiles 0 

Answer 1

我在一個類似的配置（MACOS +釀造安裝升壓），所以我進行了測試。答案中列出的cmake配置現在是好的。

cmake_minimum_required(VERSION 3.7) 

project(practice_cpp) 

set(CMAKE_CXX_STANDARD 11) 

set(SOURCE_FILES main.cpp) 


find_package(Boost REQUIRED COMPONENTS system iostreams) 

if(Boost_FOUND) 

    message(STATUS "Boost_INCLUDE_DIRS: ${Boost_INCLUDE_DIRS}") 
    message(STATUS "Boost_LIBRARIES: ${Boost_LIBRARIES}") 
    message(STATUS "Boost_VERSION: ${Boost_VERSION}") 

    include_directories(${Boost_INCLUDE_DIRS}) 

endif() 

add_executable(practice_cpp ${SOURCE_FILES}) 

if(Boost_FOUND) 

    target_link_libraries(practice_cpp ${Boost_LIBRARIES}) 

endif() 

問題是，這似乎從張貼在問題原始文件不同：

cmake_minimum_required(VERSION 3.7) 
project(practice_cpp) 

set(CMAKE_CXX_STANDARD 11) 

    set(SOURCE_FILES main.cpp) 
add_executable(practice_cpp ${SOURCE_FILES}) 

find_package(Boost REQUIRED COMPONENTS system iostreams) 

if(Boost_FOUND) 

    message(STATUS "Boost_INCLUDE_DIRS: ${Boost_INCLUDE_DIRS}") 
    message(STATUS "Boost_LIBRARIES: ${Boost_LIBRARIES}") 
    message(STATUS "Boost_VERSION: ${Boost_VERSION}") 

include_directories(${Boost_INCLUDE_DIRS}) 

endif() 

add_executable(BoostTest main.cpp) 


target_link_libraries(practice_cpp ${Boost_LIBRARIES}) 

當我第一次看到這個問題時，文件看起來像這樣。我測試了它，並得到了問題中的確切錯誤。

因此，實際上BoostTest是（是）可執行文件，您應該添加target_link_libraries(BoostTest ${Boost_LIBRARIES})。