86 lines
1.5 KiB
Go
86 lines
1.5 KiB
Go
package main
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import (
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"unsafe"
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"github.com/goplus/llgo/c"
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)
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//llgo:type C
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type T func()
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type M struct {
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fn T
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v int
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}
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type N struct {
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fn func()
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v int
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}
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func main() {
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if unsafe.Sizeof(*(*T)(nil)) != unsafe.Sizeof(0) {
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panic("error")
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}
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if unsafe.Sizeof(*(*M)(nil)) != unsafe.Sizeof([2]int{}) {
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panic("error")
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}
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// TODO(lijie): inconsistent with golang
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if unsafe.Sizeof(*(*N)(nil)) != unsafe.Sizeof([3]int{}) {
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panic("error")
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}
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if unsafe.Alignof(*(*T)(nil)) != unsafe.Alignof(0) {
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panic("error")
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}
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if unsafe.Alignof(*(*M)(nil)) != unsafe.Alignof([2]int{}) {
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panic("error")
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}
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if unsafe.Alignof(*(*N)(nil)) != unsafe.Alignof([3]int{}) {
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panic("error")
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}
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if unsafe.Offsetof(M{}.fn) != 0 {
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panic("error")
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}
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if unsafe.Offsetof(M{}.v) != unsafe.Sizeof(int(0)) {
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panic("error")
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}
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if unsafe.Offsetof(N{}.fn) != 0 {
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panic("error")
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}
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// TODO(lijie): inconsistent with golang
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if unsafe.Offsetof(N{}.v) != unsafe.Sizeof([2]int{}) {
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panic("error")
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}
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s := unsafe.String((*byte)(unsafe.Pointer(c.Str("abc"))), 3)
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if s != "abc" {
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panic("error")
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}
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p := unsafe.StringData(s)
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arr := (*[3]byte)(unsafe.Pointer(p))
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if arr[0] != 'a' || arr[1] != 'b' || arr[2] != 'c' {
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panic("error")
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}
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intArr := [2]int{1, 2}
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pi := &intArr[0]
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intSlice := unsafe.Slice(pi, 2)
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if intSlice[0] != 1 || intSlice[1] != 2 {
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panic("error")
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}
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pi = unsafe.SliceData(intSlice)
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if *pi != 1 {
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panic("error")
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}
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if uintptr(unsafe.Add(unsafe.Pointer(nil), 1)) != 1 {
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panic("error")
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}
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}
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