On 8/31/18 1:18 PM, Neia Neutuladh wrote:
On Friday, 31 August 2018 at 06:20:09 UTC, James Blachly wrote:
Hi all,
I am linking to a C library which defines a symbol,
const char seq_nt16_str[] = "=ACMGRSVTWYHKDBN";
In the C sources, this is an array of 16 bytes (17 I guess, because it
is written as a string).
In the C headers, it is listed as extern const char seq_nt16_str[];
When linking to this library from another C program, I am able to
treat seq_nt16_str as any other array, and being defined as []
fundamentally it is a pointer.
When linking to this library from D, I have declared it as:
extern __gshared const(char)* seq_nt16_str;
***But this segfaults when I treat it like an array (e.g. by accessing
members by index).***
I believe this should be extern extern(C)? I'm surprised that this
segfaults rather than having a link error.
Yeah, I had to add extern(C) in my tests to get it to link. I think he
must have extern(C): somewhere above.
-Steve
