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- // Copyright 2020 The Go Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style
- // license that can be found in the LICENSE file.
- package main
- // Test passing C struct to exported Go function.
- /*
- #include <stdint.h>
- #include <stdlib.h>
- // T is a C struct with alignment padding after b.
- // The padding bytes are not considered initialized by MSAN.
- // It is big enough to be passed on stack in C ABI (and least
- // on AMD64).
- typedef struct { char b; uintptr_t x, y; } T;
- extern void F(T);
- // Use weak as a hack to permit defining a function even though we use export.
- void CF(int x) __attribute__ ((weak));
- void CF(int x) {
- T *t = malloc(sizeof(T));
- t->b = (char)x;
- t->x = x;
- t->y = x;
- F(*t);
- }
- */
- import "C"
- //export F
- func F(t C.T) { println(t.b, t.x, t.y) }
- func main() {
- C.CF(C.int(0))
- }
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