how can i determine the size?

#include <iostream>
#include <cctype>
using namespace std;

struct inventory_items
{
int code,quantity,reorder_level;
char name[20], item[3];
double price;
};

inventory_items record[2000];

Question: What should I do to allow the user to enter the size of the array for inventory_items record himself instead of me specifying the size? Thanks!

Quote:

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Originally posted by Mingzhi

Question: What should I do to allow the user to enter the size of the array for inventory_items record himself instead of me specifying the size? Thanks!

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use std::vector

Code:

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#include <vector>
...
std::vector<inventory_items> itemVec;

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i would suggest you creata a pointer inside the struct...

Code:

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#include <iostream>
#include <cctype>
using namespace std;

struct inventory_items
{
int code,quantity,reorder_level;
char name[20], item[3];
double price;
};


int main()
{
inventory_items *record;
int num=100;    \\ this can be accepted fro the user..
record=new inventory_items[num]; \\will create an array of 100
return 0;

}

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But make sure you clear up the memory by using delete..



edited
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ohh boy.. i thought i was the first to answer this and 2 guys beat me to it..

A big thanks to all of u :)