[go-nuts] Re: C.malloc of Go type?

[Max]

On Saturday, May 19, 2018 at 10:42:12 PM UTC+2, Max wrote:
>
>
> func mallocList() *List {
>     const n = unsafe.Sizeof(List{})
>     p := C.malloc(C.ulong(n))
>     C.memset(p, C.int(n), 0)
>     return (*List)(p)
> }
>

I swapped the arguments to C.memset(). The correct version is:

func mallocList() *List {
    const n = C.ulong(unsafe.Sizeof(List{}))
    p := C.malloc(n)
    C.memset(p, 0, n)
    return (*List)(p)
}
 

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