invalid operands of types `int' and `int ()(int)' to binary `operator-'

[categami]

hey i need help with this

this error keeps popping up on line 20 invalid operands of types `int' and `int ()(int)' to binary `operator-'
is there any help i can get please help me!!!
thank you so much.

im sorry if i broke any rules but im getting desperate right now. i searched every where but i cant find the answer for it so please help me.

#include <cstdlib>
#include <iostream>

using namespace std;

int h(int h=100);

int l(int l = 10);

int d(int d = 0);

int subtraction (int h, int l);

int subtraction (int h, int d)

{
    if (h)
    {
    return h - l;
    }
    else 
    {
         if (d)
         {
             return h - d;
         }
    }
}
int main(int arg, char *argv[])
{
     int d;
     int l;
     int h;
        //damage
        if ( 1 == 1)
        {
              cout << subtraction (h, l) << endl;
        }
        else
        {
            if ( 1 == 2)
            {
                   cout << subtraction(h, l) << endl;
            }
            else
            {
                if ( 1 == 3)
                {
                      cout << subtraction(h, l) << endl;
                }
                else
                {
                    if ( 1 == 4)
                    {
                          cout << subtraction(h, l) << endl;
                    }
                    else
                    {
                        if ( 1 == 5)
                        {
                              cout <<  subtraction(h, d) << endl;
                        }
                    }
                }
             }
         }
              if ( 2 == 1)
        {
              cout << subtraction(h, l) << endl;
        }
        else
        {
            if ( 2 == 2)
            {
                   cout << subtraction(h, l) << endl;
            }
            else
            {
                if ( 2 == 3)
                {
                      cout << subtraction(h, l) << endl;
                }
                else
                {
                    if ( 2 == 4)
                    {
                          cout << subtraction(h, l) << endl;
                    }
                    else
                    {
                        if ( 2 == 5)
                        {
                              cout <<  subtraction(h, d) << endl;
                        }
                    }
                }
            }
         }
                 if ( 3 == 1)
        {
              cout << subtraction(h, l) << endl;
        }
        else
        {
            if ( 3 == 2)
            {
                   cout << subtraction(h, l) << endl;
            }
            else
            {
                if ( 3 == 3)
                {
                      cout << subtraction(h, d) << endl;
                }
                else
                {
                    if ( 3 == 4)
                    {
                          cout << subtraction(h, d) << endl;
                    }
                    else
                    {
                        if ( 3 == 5)
                        {
                              cout <<  subtraction(h, l) << endl;
                        }
                    }
                }
            }
        }
                 if ( 4 == 1)
        {
              cout << subtraction(h, l) << endl;
        }
        else
        {
            if ( 4 == 2)
            {
                   cout << subtraction(h, l) << endl;
            }
            else
            {
                if ( 4 == 3)
                {
                      cout << subtraction(h, d) << endl;
                }
                else
                {
                    if ( 4 == 4)
                    {
                          cout << subtraction(h, d) << endl;
                    }
                    else
                    {
                        if ( 4 == 5)
                        {
                              cout <<  subtraction(h, l) << endl;
                        }
                    }
                }
            }
        }
                 if ( 5 == 1)
        {
              cout << subtraction(h, d) << endl;
        }
        else
        {
            if ( 5 == 2)
            {
                   cout << subtraction(h, d) << endl;
            }
            else
            {
                if ( 5 == 3)
                {
                      cout << subtraction(h, l) << endl;
                }
                else
                {
                    if ( 5 == 4)
                    {
                          cout << subtraction(h, l) << endl;
                    }
                    else
                    {
                        if ( 5 == 5)
                        {
                              cout <<  subtraction(h, d) << endl;
                        }
                    }
                }
            }
        }
    system("PAUSE");
    return 0;
}

[weaknessforcats]

You have not defined these functions:

int h(int h=100);

int l(int l = 10);

int d(int d = 0);

[categami]

they should be defined in lines 32-34

[weaknessforcats]

These are variables:

     int d;
 33.      int l;
 34.      int h;

These are functions:

int h(int h=100);
 8. 
 9. int l(int l = 10);
 10. 
 11. int d(int d = 0);

You will find that using a variable with the same name as a function will cause your code to not compile. What's saving you now is that you are never calling the functions.

I expect you mean to do something else. Like create an integer h with an initial value of 100. Tha would look like:

int main()
{
    int h = 100;
    etc...

[categami]

so this is the int h being called on

 int main()
{
    int h = 100;
    etc...

and i did not properly call my functions the way i need them to be

[weaknessforcats]

You are not calling a function here. What this does is set a variable to a value of 100.

All function calls in C and C++ use parentheses to enclose the arguments, if there are any.

int h = 100;  //variable
void x(int y);      //function;

You do not call variables.

[categami]

sorry as you can tell im very new to c++ i have blood shed
so how would i call the function properly then

[whodgson]

Just by name and argument/s.
In weaknessforcats last post:

 x(y);

[categami]

i have one other question there are 3 varibles how would i set a arguments of some sort cause its sopose to do this if it is not damaging the person then it should call on another equation in the if statement i have set up

int h(int h=100);
 
int l(int l = 10);
 
int d(int d = 0);
 
int subtraction (int h, int l);
 
int subtraction (int h, int d)
 
{
    if (h)
    {
    return h - l;
    }
    else 
    {
         if (d)
         {
             return h - d;
         }
    }
}

[weaknessforcats]

I am having trouble understanding your English. Please try to explain again.

[categami]

in this code i am trying to make 2 different equations get used. the first equation is for health lost.
the second equation deals with when the person blocks which is int d so it makes it where health is not lost
i need to figure out how to make 3 varibles into a argument stating "if he attacks and health is lost do the first equation if he blocks do the second equation"

int h(int h=100);
 
int l(int l = 10);
 
int d(int d = 0);
 
int subtraction (int h, int l);
 
int subtraction (int h, int d)
 
{
    if (h)
    {
    return h - l;
    }
    else 
    {
         if (d)
         {
             return h - d;
         }
    }
}

the first equation

int h(int h=100);
 
int l(int l = 10);

int subtraction (int h, int l);
 
return h - l;

second equation

int l(int l = 10);

int D(int D = 0);


int subtraction (int h, int d)

return h - d;

[weaknessforcats]

OK, here is what you said:

"if he attacks and health is lost do the first equation if he blocks do the second equation"

In C++ this looks like:

if (he == attacks)
{
    if (health == lost)
    {
        Do the first equation.
    }
}
if (he == blocks)
{
    Do the second equation.
}

You will need variables for the patient, and values for what "attacks" and "blocks" means.

You may also need more information about your patient:

struct Patient
{
  bool Health;  //if true patient has health
  bool Heart;   //if true patient has had an attack
  bool Blocks;  //if true patient has blocked
};

[categami]

crap umm what do you mean by patient?
this whole thing is a text based game i had to divide it into different source files so it would be less complicated

the first code is basicly what i need it to say but when i do the other if statements it makes a ton of errors do i have to add the word to it as well cause all i want it to do is when one person types all they have to do is type in a number and hit enter. but with the attack i think it will make them have to type in "attack 1" if that makes any sense at all to you.

and i dont know what you mean by the bool statements either can explain that please

[weaknessforcats]

I was trying to guess what you are trying to do in the absence of information.

"attack". "health and "blocks" are common medical terms so I assumed you were doing some sort of patient analysis.

I think the best thing to do here is to stop and let you explain what it is you are doing. Have you any experience at all in programming?

[categami]

i have very little experience im doing this to make myself have more experience and so i can learn the functions and other stuff i havnt been able to learn from the internet or my book c++ for dumbies

this is what im doing. its a fight based text game it will pop up with beginning text giving the person instructions as to how to play then say
"player 1" the person that player 1 will type in a number from 1 - 5
then it will say "player 2" he will do the same thing.
once they do that it must calculate the infermation it is giving example would be.
player 1
1
player 2
1
health 90 points

thats for attack based
for deffence is

player 1
1
player 2
5
health 100 points

and they will keep doing this until some one hits zero.