i m using visual studio 2012 and i pass three command line arguments as 10 20 30 and when i m compile the program get error.....need help
Code:#include<stdio.h> #include<conio.h> #include<stdlib.h> main(int n,char **p) { int sum=0,i; if(n>=2) for(i=0;i<=n;i++) sum=sum+atoi(p[i]); printf("Sum=%d\n",sum); getch(); }
The reason is probably that p[n] will be NULL (so says the standard) so atoi(p[n]) gives undefined behaviour.
Additionally
1) it is a bad idea to leave the return type (int) off main().
2) Neither <conio.h> and getch() are standard in C.
3) p[0] will (usually) be a string representing the name of the program when run. atoi(p[0]) is valid (as atoi() returns an error if it can't convert its argument to an int) but is probably not a good idea (say, if the first character of the program name contains a digit).
