Today I experienced cruelty of C and mercy of Sublime and SublimeLinter.

So yesterday I was programming late at night for my uni homework in C. So I had this struct:

typedef struct {
int borrowed;
int user_id;
int book_id;
unsigned long long date;
} entry;

and I created an array of this entry like this:

entry *arr = (entry*) malloc (sizeof(arr) * n);

and my program compiled. But at the output, there was something strange...

There were some weird hexadecimal characters at the beginning but then there was normal output. So late at night, I thought that something is wrong with printf statement and I went googling... and after 2 hours I didn't found anything. In this 2 hours, I also tried to change scanf statement if maybe I was reading the wrong way. But nothing worked. But then I tried to type input in the console (before I was reading from a file and saving output in a file). And it outputted right answer!!! AT THAT POINT I WAS DONE!!! I SAID FUCK THIS SHIT I AM GOING TO SLEEP.

So this morning I continued to work on homework and tried on my other computer with other distro to see if there is the same problem. And it was..

So then I noticed that my sublime lint has some interesting warning in this line
entry *arr = (entry*) malloc (sizeof(arr) * n);
Before I thought that is just some random indentation or something but then I saw a message: Size of pointer 'arr' is used instead of its data.

AND IT STRUCT ME LIKE LIGHTNING.

I just changed this line to this:
entry *arr = (entry*) malloc (sizeof(entry) * n);

And It all worked fine. At that moment I was so happy and so angry at myself.

Lesson learned for next time: Don't program late at night especially in C and check SublimeLInter messages.