Function names, Lib used from C and D

[evilrat]

On Tuesday, 22 October 2024 at 12:44:22 UTC, Maximilian Naderer 
wrote:
> Dear community,
> I want to create a library which is usable from C and D.
> D should be a first class citizen and C because of FFI for 
> other languages.
> The lib is compiled with -betterC
>
> Because C does not have namespaces i want to add the prefix of 
> the lib like "leogfx" but in D i don't want that because we 
> don't need this.
>
>
> extern(C):
>
> private {
>     bool pInit() {
>         return true;
>     }
> }
>

pragma mangle modifies how the symbol name will appear to the 
linker.


```d
pragma(mangle, "leogfx_init")
bool pInit() {
...
}
```

additionally IIRC you can even loop it on itself to self modify 
it, at least I remember doing something like this to keep its 
name consistent on code refactoring.

```d
pragma(mangle, "leogfx_" ~ __traits(identifier, pInit))
bool pInit() {
...
}
```