I'm trying to call C function with same signature they take 2 int arguments. and this error cannot call non-function f (type unsafe.Pointer)
appear during compile.
package main
/*
int add(int a, int b) {
return a+b;
}
int sub(int a, int b) {
return a-b;
}
*/
import "C"
import (
"fmt"
"unsafe"
)
func main() {
a := C.int(1)
b := C.int(2)
fx := make([]unsafe.Pointer, 2)
fx[0] = C.add
fx[1] = C.sub
for _, f := range fx {
fmt.Printf("Result: %d
", f(a, b))
}
}
Now I'm working around with wrap C function with go function and add go function into slice instead like this
package main
/*
int add(int a, int b) {
return a+b;
}
int sub(int a, int b) {
return a-b;
}
*/
import "C"
import (
"fmt"
)
func add(a, b int) int {
return (int)(C.add(C.int(a), C.int(b)))
}
func sub(a, b int) int {
return (int)(C.sub(C.int(a), C.int(b)))
}
func main() {
fx := [](func(int, int) int){
add, sub,
}
for _, f := range fx {
fmt.Printf("Result: %d
", f(1, 2))
}
}
Is there any way to call C function from unsafe.Pointer
, I'm using GO 1.8.1 Linux