c - uninitialized local variable 'num' used? -
#include<stdio.h> #include<conio.h> int main() { int num; printf("enter number \n"); scanf_s("%d", num); printf("your number %d", num); _getch(); return 0; } when build above code in vs2013 gives me following error : error c4700: uninitialized local variable 'num' used ?? whhat reason ?? you forgot &: scanf_s("%d", &num); scanf expect pointer, reading value of num find address write user input (and num not initialized, that's why compiler raise warning). meant address of num itself.
