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