Invalid use of non-static data member?

[xystus]

im getting this error invalid use of non static data member.

my code looks something like this:

i have a main.cpp and 2 class files with respective .h files
say one class file is named human (so i have human.cpp and human.h) and stats (so i have stats.cpp and stats.h)
in my stats.h file, i have a double array: double HumanF[10][12] with everything filled in.
then in my human.h file i just have a bunch of integers.

human.cpp has formulas in it that use numbers from the double array i mentioned.
for example

Human::Human()
{
constant (this is a double i made in human.h) = (1+Stats::HumanF[0][0]);
i (another double) = pow(constant, ylvl);
(ylvl is also an int I made in my header file)
yhp = i*137;
}

my problem starts at the first line.
is there something im missing? thanks.

[xystus]

what is also weird is that in this class where i have the array (stats.h), i cannot enum it, it gives me the same error even though im saying const int BLAH = 10 and const int BLAH2 = 12

[cire]

Rather than describe it, reduce it to a minimal code sample that reproduces the problem:

struct A
{
    char a = 'a' ;
};

struct B
{
    char b;

    B() { b = A::a + 1;}

};

An object of type A is required to access the a member of an A object. For instance, the following would work:

struct A
{
    char a = 'a';
};

struct B
{
    char b;

    B() { A x; b = x.a + 1;}

};

Or, if we make the member static there will only be one a for all objects of type A, and then the original code works:

struct A
{
    static char a ;
};

char A::a = 'a';

struct B
{
    char b;

    B() { b = A::a + 1;}

};

[xystus]

Hmm seems i have figured it out. i wasnt using the right header (i have many). Can i not use 2 classes in one .cpp file? it gives me an error when i do that

[cire]

Can i not use 2 classes in one .cpp file? it gives me an error when i do that

Of course you can.

[xystus]

@cire
it gives me an error saying out of line declaration of a member must be a definition.

im using 1 class which is in one header and another class which is in another header
Human::Human() <- its giving me the error here.
Stats::Stats()
and tells me to put a ; like this
Stats::;Stats()

[cire]

xystus wrote:

it gives me an error saying out of line declaration of a member must be a definition.

And so it must. You cannot 'declare' a method outside of the class definition, but you can define it there. In other words, outside the class definition, Human::Human() must be followed by the body of the function surrounded by curly braces: {}.

cire wrote:

Rather than describe it, reduce it to a minimal code sample that reproduces the problem

[xystus]

oh i see.

[xystus]

Now ive run into another file.
i have 2 separate .h files with respective .cpp files
human.cpp
human.h
stats.cpp
stats.h

i include both in my main file.
#include "human.h"
#include "stats.h"

both have their own classes named human human() and stats stats() respectively.
when i go to my main and type
human();

in my main function and run it, it does everything its supposed to.

but, when i type
stats();

i get an error.

now what am i missing!?

[TwilightSpectre]

What error are you getting? Could we see your stats.h file? The most likely thing I can think of is that there is no default constructor for your stats class.

[xystus]

im actually thinking of redoing these.

im trying to make separate code that does almost the same thing in each cpp file and trying to build it with that when i should be using cpp's in another cpp which will go into main... if that makes sense. use of undeclared identifier when i type stats. im going to try the way i just mentioned and see if that fixes it, im thinking it should.

[xystus]

oh derp... i had something wrong with my header files. everything works fine now :3