It crashes because you are accessing argv[1] which would hold a command line argument (other than the program’s name) if there was one. You should check whether argc is greater than 1. Why greater than 1? Because the first command line argument is the name of the program itself. So argc is always greater than … Read more
[Note: C does not have builtin string type. What C has is character array] This is a very easy to solve problem. Here’s the code given, it uses stdlib‘s builtin atoi function to convert string to int: #include <stdio.h> #include <stdlib.h> int main(int argc, char *argv[]) { if (argc == 2) { char *var_str = … Read more
From man mysql: If you use the short option form (-p), you cannot have a space between the option and the password. So either mysql -u root -p”$PASSWORD” or mysql -u root –password “$PASSWORD” 0 solved MySQL treats password in script as database
In your code, int l= arr[0].length; in this line, arr[0] represents the value in array named as arr at 0th index. Hence length function can be used in this way to find the length of value stored in array at 0th index. int l = arr[0].length(); In order to find out the length of array, … Read more
I haven’t done php for a long time now … If I understand you well I would do that : Your html should send the request (http GET request) with the two numbers to your server (from your form). The triggered php script should use the shell_exec command from php to execute a c program. … Read more
All command line parameters are passed to your application through string[] args parameter. The code below shows an example: using System.Linq; namespace MyApp { class Program { static void Main(string[] args) { if (args.Contains(“/REPORT1”)) { /* Do something */ } else if (args.Contains(“/REPORT2”)) { /* Do something */ } } } } Then, in command … Read more
Quoting shamelessly from the C11 spec, chapter §5.1.2.2.1, (emphasis mine) — The value of argc shall be non-negative. — argv[argc] shall be a null pointer. — If the value of argc is greater than zero, the array members argv[0]through argv[argc-1] inclusive shall contain pointers to strings, which are given implementation-defined values by the host environment … Read more