While trying to make a benchmark for comparing results of my
possible compression replacement, I'm finding it quite difficult
to link the c code with the d code.
So I've managed to compile the compress.c file using dmc, but
when I link the obj file to reference it I don't seem to see it...
I've linked a prototype before trying to call it
What am I hopelessly doing wrong?
unittest {
string haystack = "...";
auto f1 = (){
RawBuffer rb;
compress(rb, haystack);
};
auto f2 = (){
size_t plen;
extern (C) char *id_compress(char *id, int idlen, size_t
*plen);
id_compress(cast(char*) haystack.ptr, haystack.length,
&plen);
};
auto memoryhungry_compress = benchmark!(f1)(100_000);
auto original_compress = benchmark!(f2)(100_000);
...
}
$ dmd compress_c.obj compress.d -g -O -unittest -main
Error 42: Symbol Undefined
__D8compress16__unittestL366_5FZ9__lambda2MFZ11id_compressUPaiPkZPa
