Question

中的示例代码解压缩gzip文件

#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);
}

我使用$brew install boost安装了boost。我按照CLion documentation中的说明在CLion中使用了Live Template包含了boost库。

然而，这个简单的代码并不起作用。（编辑错误消息）

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

我怀疑gzip_decompressor无法以某种方式识别出来。

寻找解决方案！

编辑：

1）这是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，我在终端上尝试了这个命令。

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

输出

$ ./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）这是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）$ make 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

我正在使用类似的配置（macOS + brew安装升级），所以我测试了它。答案中列出的cmake配置现在是好的。

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()

问题是，这似乎与问题中发布的原始文件不同：

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})

当我第一次看到问题时，文件看起来像这样。我测试了它并得到了问题中的确切错误。

所以实际上BoostTest是可执行文件，你应该添加target_link_libraries(BoostTest ${Boost_LIBRARIES})。

在CLion（cpp boost库）中找不到gzip_decompressor

1 个答案: