go cgoso 源码
golang cgoso 代码
文件路径：/misc/cgo/testsovar/testdata/cgoso.go
// Copyright 2015 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 cgosotest
// This test verifies that Go can access C variables
// in shared object file via cgo.
/*
// intentionally write the same LDFLAGS differently
// to test correct handling of LDFLAGS.
#cgo windows CFLAGS: -DIMPORT_DLL
#cgo linux LDFLAGS: -L. -lcgosotest
#cgo dragonfly LDFLAGS: -L. -l cgosotest
#cgo freebsd LDFLAGS: -L. -l cgosotest
#cgo openbsd LDFLAGS: -L. -l cgosotest
#cgo solaris LDFLAGS: -L. -lcgosotest
#cgo netbsd LDFLAGS: -L. libcgosotest.so
#cgo darwin LDFLAGS: -L. libcgosotest.dylib
#cgo windows LDFLAGS: -L. libcgosotest.a
#cgo aix LDFLAGS: -L. -l cgosotest
#include "cgoso_c.h"
const char* getVar() {
return exported_var;
}
*/
import "C"
import "fmt"
func Test() {
const want = "Hello world"
got := C.GoString(C.getVar())
if got != want {
panic(fmt.Sprintf("testExportedVar: got %q, but want %q", got, want))
}
got = C.GoString(C.exported_var)
if got != want {
panic(fmt.Sprintf("testExportedVar: got %q, but want %q", got, want))
}
}
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