In my program, I need to make a linked list but the size of the list (number of nodes) is defined during compile time. "newcustomer.numT" variable is the number of nodes that will be created. To do this I thought that I should have an array of pointers then I'd ask for memory from the heap by each pointer. BUT, unfortunately I also don't know the size of the array. I created it dynamically as well. "transactionn" is a struct which holds the values in a single node.
transactionn **asd;
asd = new transactionn*[newcustomer.numT]; //I created array of pointers
for (int k = 0; k<newcustomer.numT; k++){
asd[k] = new transactionn; //Allocating a node for each pointer in the array
} //End of the "node creating"
newcustomer.trahead = asd[0]; //Assign head to the first node
//Connecting nodes in the linked list to eachother
for (int z = 0; z < (newcustomer.numT)-1; z++){
asd[z]->next = asd[z + 1];
}
asd[newcustomer.numT]->next = NULL; //Set the next of the last node to NULL
When I compile it, there is no error on error list but in the output I get this:
Critical error detected c0000374
DataHomework2.exe has triggered a breakpoint.
And it triggers a break point in this line:
asd[k] = new transactionn;
What am I doing wrong?
Edit: I corrected the last index when so it is:
asd[(newcustomer.numT)-1]->next = NULL;
When I compile these codes as a one whole program, there is no error and program doesn't crash. When I implement this function to my main project program crashes again. Critical error.
Edit2 : These lines were correct. Source of the error was due to the values they get from other functions.
asd = new transactionn*[newcustomer.numT]; //I created array of pointers
//...
asd[newcustomer.numT]->next = NULL; //Set the next of the last node to NULL
You overflow the array. The last index of array pointed by asd is newcustomer.numT - 1.