can anyone help me out with this . ?

Question

https://stackoverflow.com/questions/53672701/saving-data-in-files-in-c

Answer 1

For your second problem: When I close the program and logged in again the information of user reservation deletes. I want to save the user's reservation information too.

In registration():

log = fopen("login.txt", "ab"); // must be opened as binary so I added 'b' there
~~~~~~~
In login():

struct login l[100]; // should be a buffer big enough to hold maximum registered users
log = fopen("login.txt", "rb"); // binary reading
...

for (int i = 0; i < 100; ++i) {
fread(&l[i], sizeof(struct login), 1, log);

if (strcmp(username, l[i].username) == 0 && strcmp(password, l[i].password) == 0)
{
system("CLS");
printf("\nYou are successfully logged in !!\n");
fclose(log);
menu();

}
}
system("CLS");
fclose(log);
login();
~~~~~~

Note: By doing the above fixes I can't see any issue with your first problem. Now, you can insert more info to the end of the file. If there's something missing or wrong tell me.

Answer 2

have mentioned someone who can help with the code....
have tried debugging... but it seems am having problem because am checking it out on my phone.....

Answer 3

John Wells should be able to help.... i try finding the bug, now am getting headache... i could also learn from this

Answer 4

what should i do ? i want to make it work but i dont know how

Answer 5

thankyou i am waiting for someone to answer 😭😭