The problem is that a function template is not a function. It's a template for creating functions as needed.So for a template to work, the compiler intuitively needs two pieces of information: The template itself, and the type that should be substituted into it.When you declare the function...
You need to use theexportkeyword. However, I don't think G++ has proper support, so you need to include the template function's definition in
I am trying to add some function to the c++ project (calling function) and the called function are in C. And i am getting error "undefined reference to "Hello(int,int)" " while linking. It is compiling correctly. It is linking to header file mention in the calling function. This heade...
undefined reference to `png_create_write_struct'问题解决---Ubuntu16.04lts QT版本:4.8.5 由于系统原因,今天要重新编译QT,在编译PC版的qvfb的make步骤时,出现了如下错误: .obj/release-shared/qanimationwriter.o: In function `QAnimationWriter::QAnimationWriter(QString const&, char const*)': q...
Hello_Led_12_04_13_bsp/\libhal_bsp.a(alt_main.o): In function `alt_main': C:\altera\12.1\WorkingArea\BiggerNios\software\Hello_Led_12_04_13_bsp/HAL/src/alt_main.c:154: undefined reference to `main' collect2: ld returned 1 exit status make: *** Err...
So in every function there should be no '__declspec' command because the define is empty. This leads to the desricbed error. After your hints I tested it with deleting also the dllimport in the second branch (althrough not used at all). Now it works. Strange behaviour....
/usr/local/src/vcpkg/installed/x64-linux/include/boost/function/function_template.hpp:581: undefined reference to `operator delete(void*, unsigned long)' /usr/local/src/vcpkg/installed/x64-linux/debug/lib/libboost_thread.a(thread.o):/usr/local/src/vcpkg/installed/x64-linux/include/boost/smar...
CMakeFiles/InterfaceCOLMAP.dir/InterfaceCOLMAP.cpp.o: In function `Initialize(unsigned long, char const**)': InterfaceCOLMAP.cpp:(.text._Z10InitializemPPKc+0x1e4): undefined reference to `boost::program_options::options_description::options_description(std::__cxx11::basic_string<char, std::...
So I’ve tried changing C language standard among those available (C89, C99, C11), but with no success. I’ve tried this cause I’ve found just a reference on stackoverflow about it, where it is mentioned also to link the file with the option “-lm”, but ...
Call to undefined function Think\Template\simplexml_load_string() , 原因是 没有安装 php-xml包... 在php中, 关于xml有2个php包: php5.6-xml; php5.6-xmlrpc $ sudo apt-get install php5.6-xml php5.6-xmlrpc 重启apache2 $ sudo /etc/init.d/apache2 restart ...