On 5/24/22 2:54 PM, frame wrote:
I have a function slot that may be loaded via a shared library.
I want to check if that function has an address but compiler (DMD 2.100,
Windows) instead tries to invocate the function?
```d
// --- module a:
alias F = extern (C) void function(string param);
F fun = someLibLoad!F("name");
assert(fun !is null); // compiles (also works in runtime)
This doesn't seem valid for module-level code, assert is an instruction,
not a declaration.
// --- module b:
import a;
// same code:
//
// error: missing argument for parameter #1: ... with 2.098.1 or
// error: too few arguments, expected `5`, got `0` ... with 2.100
assert(fun !is null);
```
Usually that works fine as shown in module A but for some reason not in
module B.
Workaround ideas? I tried casting to void* or ptrdiff_t but the compiler
always tries to call the function -.-
`expected 5 got 0` suggests it is finding some other `fun`, as `a.fun`
only takes a single parameter.
Try `std.traits.fullyQualifiedName!fun` to see where it's coming from.
-Steve
