Thanks Jason, I was looking for something like that indeed :)
However meanwhile I found an amazing Go package that does what I want
https://github.com/rainycape/dl
He does the same as you do with some assembly and automatic type conversion
with reflect package to facilitate user experience :)
Le jeudi 15 mai 2025 à 18:52:33 UTC+2, Jason E. Aten a écrit :
> wow. that .go got mangled by copy and paste. 2nd attempt:
>
> package main
>
> /*
> #cgo LDFLAGS: -ldl
> #include <dlfcn.h>
> #include <stdlib.h>
> #include <stdio.h>
>
> // Define the function type that matches our C function
> typedef int (*multiply_func)(int, int);
>
> // Helper function to load and call the multiply function
> int call_multiply(int a, int b) {
> void* handle = dlopen("./libexample.so", RTLD_LAZY);
> if (!handle) {
> fprintf(stderr, "Error loading library: %s\n", dlerror());
> return -1;
> }
> // not C, but you'll need the moral equivalent of
> // defer dlclose(handle);
> // to clean up.
>
> multiply_func multiply = (multiply_func)dlsym(handle, "multiply");
> if (!multiply) {
> fprintf(stderr, "Error finding function: %s\n", dlerror());
> return -1;
> }
>
> return multiply(a, b);
> }
> */
> import "C"
> import "fmt"
>
> func main() {
> // Call the C function through our wrapper
> result := C.call_multiply(C.int(5), C.int(7))
>
> if result == -1 {
> fmt.Println("Error calling multiply function")
> return
> }
>
> fmt.Printf("5 * 7 = %d\n", int(result))
> }
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