On 08/09/2018 9:46 PM, SuperPrower wrote:
On Saturday, 8 September 2018 at 09:36:21 UTC, rikki cattermole wrote:
We're going to need to see a minified version of the code to see what
you're doing.
Sure, here it is:
```
auto getBoards()
{
string[] boardList;
auto url = baseUrl ~ "/api/v2/boards";
auto http = HTTP(url);
http.method = HTTP.Method.get;
http.onReceive = (ubyte[] data) {
auto content = cast(string) data[];
auto content = cast(string)(data.dup);
boardList = strip(content, "[", "]").split(",");
foreach (ref b; boardList) {
b = strip(b, `"`);
}
return data.length;
};
http.perform();
writeln(boardList);
return boardList;
}
```
This is a member function of some class. It doesn't really have any
fields, so I left if out. In it, I use curl library to getch some data
and split it. Next, I try to use this function to get this list:
```
Fetcher fetcher = new Fetcher;
auto boards = fetcher.getBoards();
writeln(boards);
```
I printed array twice: inside the function and after return. Here is the
output:
```
["a", "burg", "cyb", "d", "lain", "mu", "new", "tech", "test", "u", "v",
"all"]
[x"F9"c, x"FA 01 00 00"c, "\0\0\0", "d", "lain", "mu", "new", "tech",
"test", "u", "v", "all"]
```
As you can see, when outside of the funtion, first few elements of the
array contain garbage. I would like to know both why this happens and
how do I avoid it (i.e. what is the correct way of returning dynamic
array).
onReceive:
"The event handler that receives incoming data. Be sure to copy the
incoming ubyte[] since it is not guaranteed to be valid after the
callback returns."
It could be a buffer on the stack, either way, .dup it before you cast.
