/*

* Copyright 2018 The Emscripten Authors. All rights reserved.

* Emscripten is available under two separate licenses, the MIT license and the

* University of Illinois/NCSA Open Source License. Both these licenses can be

* found in the LICENSE file.

*/

#include <emscripten/emscripten.h>

int main()

{

EM_ASM(

FS.writeFile('testfile', 'a=1\nb=2\n');

var stream = FS.open('testfile', 'a');

var fd = FS.write(stream, new Uint8Array([99, 61, 51]) /* c=3 */, 0, 3);

// check invalid whence

var ex;

try {

FS.llseek(stream, 0, 99);

} catch(e) {

ex = e;

}

assert(ex instanceof FS.ErrnoError && ex.errno === 28 /* EINVAL */);

if (FS.llseek(stream, 0, 1 /* SEEK_CUR */) === 11) {

console.log("success");

}

FS.close(stream);

);

return 0;

}