calling Go function from C

cfunc.c

#include "_cgo_export.h"

unsigned long long
cfunc(unsigned int aui, unsigned long long aull) {
	return GoFunc( aui, aull);
}

main.go

package main

// unsigned long long cfunc(unsigned int aui, unsigned long long aull);
import "C"
import (
	"fmt"
)


//export GoFunc
func GoFunc( aui uint, aui64 uint64) uint64 {
	return aui64 + uint64(aui)
}



func main() {
	ui := 7
	ull := uint64(0x4000300020001000)

	out := uint64( C.cfunc( C.uint(ui), C.ulonglong(ull)))
	fmt.Printf( "expected : %16x \ngot      : %16x", uint64(ui) + ull, out)
}