github.com/riscv/riscv-go@v0.0.0-20200123204226-124ebd6fcc8e/misc/cgo/test/issue8092.go (about)

     1  // Copyright 2014 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  // Issue 8092. Test that linker defined symbols (e.g., text, data) don't
     6  // conflict with C symbols.
     7  
     8  package cgotest
     9  
    10  /*
    11  char text[] = "text";
    12  char data[] = "data";
    13  char *ctext(void) { return text; }
    14  char *cdata(void) { return data; }
    15  */
    16  import "C"
    17  
    18  import "testing"
    19  
    20  func test8092(t *testing.T) {
    21  	tests := []struct {
    22  		s    string
    23  		a, b *C.char
    24  	}{
    25  		{"text", &C.text[0], C.ctext()},
    26  		{"data", &C.data[0], C.cdata()},
    27  	}
    28  	for _, test := range tests {
    29  		if test.a != test.b {
    30  			t.Errorf("%s: pointer mismatch: %v != %v", test.s, test.a, test.b)
    31  		}
    32  		if got := C.GoString(test.a); got != test.s {
    33  			t.Errorf("%s: points at %#v, want %#v", test.s, got, test.s)
    34  		}
    35  	}
    36  }