There is an idiomatic way for printing a vector out. This way is safe and doesn’t require you to keep track of the vectors size or anything like that. It is also easily recognisable to other C++ developers. This method works on other container types too that do not allow random access. This works both … Read more
Include <vector> in your Hero.h header and consider removing it from your Hero.cpp file as mentioned in the comments below.
ios::out is the default mode for std::ofstream, it means that output operations can be used (i.e. you can write to the file). ios::app (short for append) means that instead of overwriting the file from the beginning, all output operations are done at the end of the file. This is only meaningful if the file is also open for output. … Read more
You have a circular include dependency. Collision.h includes Player.h and vice versa. The simplest solution is to remove #include “Collision.h” from Player.h, since the Collision class is not needed in the Player declaration. Besides that, it looks like some of your includes in Collision.h can be replaced by forward declarations: You can then put the includes in Collision‘s implementation file.
A .gch file is a precompiled header. If a .gch is not found then the normal header files will be used. However, if your project is set to generate pre-compiled headers it will make them if they don’t exist and use them in the next build. Sometimes the *.h.gch will get corrupted or contain outdated information, so deleting that file and … Read more
Write it like this: And similarly for other member functions. But you’ll run into another problem – declarations and definitions of a template can’t be separated to different files.
As written, NULL isn’t defined in your program. Usually, that’s defined in a standard header file — specifically <cstddef> or <stddef.h>. Since you’re restricted to iostream, if yours doesn’t get NULL implicitly from that header, you can use 0 or, in C++11, nullptr, which is a keyword and doesn’t require a header. (It is not recommended to define NULL yourself. It might work sometimes, but it is technically … Read more
1.Go to Control panel 2.In the Add or Remove Programs dialog box, select the product you want to repair and then click Change/Remove 3.In the Setup wizard, click Next 4.Click Repair 5.Then Modify it by selecting C++ to add it. Note : This work in Window OS only
Are you actually trying to round the number, or just change its displayed precision? For the former (truncating the extra digits): or (rounding up/down as appropriate, per jheriko’s answer) For the latter: where the parameter to setprecision() is the maximum number of digits to show after the decimal point.
Thats a linker problem. Try to change Properties -> Linker -> System -> SubSystem (in Visual Studio). from Windows (/SUBSYSTEM:WINDOWS) to Console (/SUBSYSTEM:CONSOLE) This one helped me