a number is sored in a string how do I set it equil to a variable

[fire child]

I can't get randnum to equil what is in the string at (randlong, randhigh)
AKA (x,y)

vector<vector<double> > countgrid;

int randhigh; // random number on the y-axis inside a grid
int randlong; // random number on the x-axis inside a grid
int randnum; // variable 

randnum = countgrid[randhigh][randlong];

randnum = 0 even though countgrid[randhigh][randlong] = 3

[kempofighter]

None of the variables used to access the array are initialized. Please post something more complete.

Assumming that the values are initialized, the value returned will simply be truncated so I'd need to see a more complete example along with info on where specifically you are testing the values in the debugger.

[fire child]

I'm not sure exactly what you mean but I hope this helps

int height; //dimension of grid in y-axis for test =5
int length; //dimension of grid in x-axis for test =5

height++; // to avoid dividing by zero
length++; // to avoid dividing by zero

randhigh = rand() % height;
randlong = rand() % length;

height--;
length--;

[jsmith]

Neither height nor length are initialized on lines 2 or 3.

[fire child]

earlier in the code height and length are asked for by the compiler, the test number for both is 5

[kempofighter]

// Here is a complete example that compiles and runs
#include <iostream>
int main()
{
    int value(5);
    std::cout << "value = " << value << std::endl;
    return 0;
}

If you want help, please post an example that demonstrates the problem. I should be able to copy and paste straight into my compiler, compile, and execute the code. I shouldn't have to wonder where and/or how the variables are initialized. If you have a program that is gigantic, copy and paste the relevant parts into a separate project so that it can be compiled with a few lines of code and then post that. I'm sure folks would love to help you but you have to do your part to ensure that the question / problem is clear.

[fire child]

sorry my code is just to involved it won't fit, it is like double the max. I need to ask this question in a different way