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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