4.1 GCC 8.4 对 std::filesystem 的支持 4.1.1 特殊处理的必要性 4.2 解决GCC 8.4中的链接问题 4.2.1 -lstdc++fs 的链接方法 结语 在这里插入图片描述 第一章: 引言 在这个数字化迅速发展的时代,软件的每一次迭代和升级都深刻地影响着我们的工作和生活。作为软件工程师,我们经常需要处理文件和目录,而 std:...
#include <filesystem>namespace fs = std::filesystem;int main() {// 创建一个新目录fs::create_directory("example_dir");// 检查文件是否存在bool file_exists = fs::exists("example_file.txt");// 获取文件大小auto file_size = fs::file_size("example_file.txt");// 更多的文件系统操作......
/usr/bin/ld: CMakeFiles/demo.dir/main.cpp.o: in function `CLI::detail::check_path(char const*)': main.cpp:(.text._ZN3CLI6detail10check_pathEPKc[_ZN3CLI6detail10check_pathEPKc]+0x38): undefined reference to `std::filesystem::status(std::filesystem::__cxx11::path const&, std:...
/usr/bin/ld: tiv.o: in function main': tiv.cpp:(.text.startup+0x180e): undefined reference to std::filesystem::status(std::filesystem::__cxx11::path const&)' /usr/bin/ld: tiv.cpp:(.text.startup+0x195a): undefined reference to std::filesystem::__cxx11::directory_iterator::d...
path<char [14],std::filesystem::__cxx11::path>(char const (&) [14], std::filesystem::__cxx11::path::format)':/usr/lib/gcc/aarch64-redhat-linux/8/../../../../include/c++/8/bits/fs_path.h:184:undefined reference to `std::filesystem::__cxx11::path::_M_split_cmpts(...
#include <filesystem> namespace fs = std::filesystem; int main() { auto const path_of_friend = fs::absolute( "path/friend" ); } And I am getting the error "undefined reference to `std::filesystem::absolute". What must I do? reference undefined Share Improve this question Follow ...
operations.cpp:(.text+0xa8): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_assign(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >const&)' ...
undefined reference to `cv::imwrite` || undefined reference to `cv::imread` 解决 现象 接手代码,cmake .. && make -j123,一气呵成,然后报错如下: 说实在的,这种问题,没有一百也有八十了,找不到库嘛,气定神闲的打开CMakeLists.txt, target_link_libraries(test ${LIBS_DIR}/lib/lib64/libopencv_...
今天直接将C语言的配置文件粘贴到了C++的工程里面,代码没有报错但是编译报错 后面自己试了一下发现用gcc编译c++的话就会报"undefined reference to `std::cout'"的错误 解决方法:用g++重新编译
C:/sdk/opencv-3.4.2-android-sdk/sdk/native/staticlibs/armeabi-v7a/libopencv_core.a(persistence_json.cpp.o):persistence_json.cpp:function icvJSONParseValue(CvFileStorage*,char*, CvFileNode*): error: undefined reference to'std::string::at(unsigned int)'C:/sdk/opencv-3.4.2-android-sdk/sdk...