why use dead language

@spaqin So when using the write function it returned the mmapedData backwards after the reverseArray function

So that is fine

But then putting that into the file gives a corrupted file that is the same file size

How corrupted

@bentech because we make embedded devices

the file size is the same

so the data is certainly there

it's literally supposed to be backwards

Did you check the data in the program?

yes, that's what I see with the write() command in the code

it's prints that all out backwards in the terminal

You could've also somehow messed up the params?

looks like your encoding is wack

But I want that in a plain text

Or it could be UTF8

if it's anything except ASCII you can't just reverse the bytes and have it work

Or whatever utf

@Goz3rr no no

```
void reverseArray(char* mmappedData, int start, int end) {
int tmp;
while(start < end) {
tmp = mmappedData[start];
mmappedData[start] = mmappedData[end];
mmappedData[end] = tmp;
start++;
end--;
}
}
```

In place reversal

you are reading bytes

a char is a byte

No bits were turned in reverse

Pass me the fwrite incantation you use

incantation lol

```
fwrite(mmappedData, 1, filesize, f);
```

im stealing that

Can't fuck that up lmao

mmapedData is a char* array from a mmap() command

1 is the start of the array

Give it a simple file first

compare your two files in a hex editor

ah ok sorry

one moment

instead of a text editor

to begin with

Tru

hav no idea

you probably succesfully reversed all bytes, but your text editor is interpreting it as the wrong encoding