Unknown error in the memory in C
- by Sergey Gavruk
I have a 2D dynamic array.
I enter a line of 0's after line which has a biggest number:
void InsertZero(int **a, int pos){
int i, j;
a = (int**)realloc(a, n * sizeof(*a));
a[n-1] = (int*)calloc(n, sizeof(**a));
d = 0;
for(i = n-1; i > pos; i--){
for(j = 0; j < n; j++){
a[i][j] = a[i-1][j];
printf("%d ", a[i][j]);
}
}
for(i = 0; i < n; i++){
a[pos][i] = 0;
}
}
If i make a size of array 3, 5, 7, 9, ... it works correctly. But if a number of lines is 2, 4, 6, ... , it is an access violation error, when i try to print my array:
void Print(void){
int i, j;
for(i = 0; i < (n-d); i++){
for(j = 0; j < n; j++){
printf("%d\t", arr[i][j]);
}
printf("\n");
}
}
code: http://codepad.org/JcUis6W4
