func main() {
//Go string to C string
s := "Hello Go string"
cs := C.CString(s)
C.print(cs)
C.free(unsafe.Pointer(cs))
//C string to Go string
fmt.Printf("%s\n", C.GoString(C.string))
}
func testSlice() {
msg := "hello world!"
p := C.calloc((C.size_t)(len(msg)+1), 1)
println("malloc:", p)
s := newSlice(p, len(msg)+1)
copy(s.Data, []byte(msg))
fmt.Printf("fmt.Printf: %s\n", string(s.Data))
C.print((*C.char)(p))
}
func main() {
fmt.Print("C.print: ")
cs := C.CString("Hello from cgo\n")
C.print(cs)
C.free(unsafe.Pointer(cs))
fmt.Print("C.factorial: ")
fmt.Println(C.factorial(5))
fmt.Print("C.gcd: ")
fmt.Println(C.gcd(15, 230))
fmt.Print("C.prime: ")
C.prime(6)
fmt.Print("C.fibonacci: ")
fmt.Println(C.fibonacci(5))
}
func C() {
s := C.CString("Hello from C!\n")
defer C.free(unsafe.Pointer(s))
C.print(s)
}
func main() {
s := "Hello Cgo"
cs := C.CString(s)
C.print(cs)
C.free(unsafe.Pointer(cs))
}
func main() {
var s = "hello cgo"
csl := C.CBytes([]byte(s))
C.print(csl, C.int(len(s)))
C.free(unsafe.Pointer(csl))
}
func main() {
// s := "Hello Cgo"
// cs := C.CString(s)
C.print()
}