c++ problem i cant iron out

boyracer87

im writting a small program and i keep getting this error:

error C2111: pointer addition requires integral operand.

anyone got any ideas as to the problem?

heres the whole program:



#include <iostream.h>
#include <conio.h>
#include <string>
#include <vector>

using namespace std;

main()
{
float qty, i, lastqty(0),proqty(0) ;
float width,lenght, panelw(0), panell(0),result(0), wholeframe(0), promeasure(0);
vector<float> list;
cout<<"Qty: ";
cin>>qty;
cout<<"Width: ";
cin>>width;
cout<<"Length: ";
cin>>lenght;

while (list.size() >= 0){
if(qty > 0){
result = width - 4.25;
panelw=result;
panell=lenght-4.25;
proqty=proqty+qty;
wholeframe=result+lenght;
promeasure=promeasure+wholeframe;

list.push_back(qty + " " + width + " X " + lenght + " " + result + " " + panelw + " X " + panell);


cout<<"Qty: ";
cin>>qty;
cout<<"Width: ";
cin>>width;
cout<<"Length: ";
cin>>lenght;

}
i=0;
while (i < list.size()){
cout<<list<<endl;
i++;
}

}

}

daymobrew

list.push_back(qty + " " + width + " X " + lenght + " " + result + " " + panelw + " X " + panell);

What are you trying to do here? list is of type float but by putting the spaces it looks like you are trying to create a string.
I tried changing the list type to 'char *' and using sprintf to create a string to push_back but it caused a run time (Access Violation) error for me. I guess that there is a correct way to achieve this.

boyracer87

im trying to put
"(qty + " " + width + " X " + lenght + " " + result + " " + panelw + " X " + panell);" into the vector<float> so i can cout them as a list.

for example:
QTY Width lenght result panelw panell
2 23 X 45 18.75 18.75 X 40

do you think it would be easyer to use an array?

by the way, just in case your wondering, the program is for caculating certain measurments of doors.