There’s some instructions for building clang on this page (hidden in the “Clang Development” part of the sidebar…). For MinGW you want the section called “On Unix-like Systems”. The only tricky part is step 5 which tells you how to set up the paths for the C++ standard library. These need to be added into … Read more
That header doesn’t exist in standard C++. It was part of some pre-1990s compilers, but it is certainly not part of C++. Use #include <iostream> instead. And all the library classes are in the std:: namespace, for example std::cout. Also, throw away any book or notes that mention the thing you said.
This is a subtle bug (and probably partly at least a compiler bug) that I’ve seen before. Since QWidget has a virtual destructor, the compiler needs a vtable for your class. But your class doesn’t have any virtual functions, so it didn’t build one for your Communicate class. Add a virtual ~Communicate() {}; to your … Read more
The stream classes, like all other file-opening functions, use the current directory when you provide a relative path. You can control the current directory with a function like chdir, but a better solution is to use fully qualified file names. Then you remove your program’s dependency on the current directory.
First set a breakpoint at the beginning of your code or codeblocks won’t go line by line. When you run your program with debug mode (check the menus) you should get some toolbars with controls to advance lines and view variables. You can you the value of a variable by hovering over it in your … Read more
Okay, I managed to build your example successfully with libcurl using static linkage. The details involved to make this work are quite intricate — setting it up correctly can get tricky for the unwary. Here are the steps I used to make this work, be sure to follow them carefully: Go to Project build options->Compiler … Read more
getline is a POSIX function, and Windows isn’t POSIX, so it doesn’t have some POSIX C functions available. You’ll need to roll your own. Or use one that has already been written.
It’s not necessary to recompile the library, SDL2 is given with static-link library named “libSDL2.a” on the folder “SDL2-2.0.0\i686-w64-mingw32\lib\”. Just be sure to add these options to the linker : “-lmingw32 -lSDL2main -lSDL2 -mwindows -lm -ldinput8 -ldxguid -ldxerr8 -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion -luuid -static-libgcc” on Code:Blocks at “Project / Build Options… … Read more
You have to add the JDK path to the include path, so the compiler knows the location of the file. Windows: /I “$(JAVA_HOME)\include” /I “$(JAVA_HOME)\include\win32″ Linux: -I”${JAVA_HOME}/include” -I”${JAVA_HOME}/include/linux” Mac: -I”${JAVA_HOME}/include” -I”${JAVA_HOME}/include/darwin”
Simple, change char j; to unsigned char j; or to just a plain (u)int unsigned int j; int j; From GCC Warnings -Wchar-subscripts Warn if an array subscript has type char. This is a common cause of error, as programmers often forget that this type is signed on some machines. This warning is enabled by … Read more