Error message ..please help

[swtstrawberry]

I wrote the program and the complier at school is Microsoft Visual 6.0.......but i keep getting one error message and i have no idea what it means...i bolded the line where it occurs n the error message i get....the program is supposed to read n a text date file with 101 altitudes incrementing by 1000 and for each there is a specific temp, pressure, and density......these values are supposed to be stored in 4 one dimensional arrays.....


# include<fstream.h>
# include<iostream.h>
# include<stdio.h>
# include<math.h>
# include<stdlib.h>

main()
{
double alt[105],temp[105],rho[105],press[105],desalt[105];
double z = 0.0f;
double p = 0.0f;
double t = 0.0f;
double r = 0.0f;
int i, ie;
char c, q, input;

ifstream inf;
inf.open("atm7.txt",ios::in);
i=1;

while (!inf.eof())
{
inf>>alt[i]>>temp[i]>>rho[i]>>press[i];
i++;
}
ie=i-1;

L1:;
printf("Enter Desired altitude: ");
error C2679: binary '>>' : no operator defined which takes a right-hand
operand of type 'double [105]' (or there is no acceptable conversion)
--------> cin>> desalt>>endl; printf("Desire altitude: ");cout<<desalt<<endl;

for(i = 0; (i <=100000) && (alt[i]<= z); i+=1000);
{
t= temp[i] +(z-alt[i])*(temp[i+1]-temp[i])/(alt[i+1]-alt[i]);
r= rho[i] +(z-alt[i])*(rho[i+1]-rho[i])/(alt[i+1]-alt[i]);
p= press[i] +(z-alt[i])*(press[i+1]-press[i])/(alt[i+1]-alt[i]);

printf("Altitude (ft):\t");
cout<<alt <<endl;
printf("Pressure (lb per in^2):\t");
cout<< p <<endl;
printf("Temperature (F):\t");
cout<< t <<endl;
printf("Density (lb per ft^3):\t");
cout<< r <<endl;
}

do

{
printf("Do you wish to continue or quit?");
cin >> input;
}
while(input!='q'); goto L1;


return 0;

}

[vermarajeev]

you have declared desalt as an array of doubles and you cannot use cin>>desalt;

Either use one loop and accept values
like this
for(int j=0; j<some_val; ++j)
cin>>desalt[j];

or declare desalt as just double like this

double desalt

Thanks