1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
// Copyright 2016 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.
// https://github.com/emscripten-core/emscripten/pull/4705: Test that FS.write() with canOwn=true works.
#include <fstream>
#include <iostream>
#include <string>
#include <emscripten/emscripten.h>
int main()
{
EM_ASM(
var stream = FS.open('testfile', 'w+');
var data = new Uint8Array(128);
var str = "Hello! ";
stringToUTF8Array(str, data, 0, lengthBytesUTF8(str)+1);
data = data.subarray(0, lengthBytesUTF8(str));
FS.write(stream, data, 0, lengthBytesUTF8(str), 0, /*canOwn=*/true);
var pos = lengthBytesUTF8(str);
str = '1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890';
data = new Uint8Array(100);
stringToUTF8Array(str, data, 0, lengthBytesUTF8(str)+1);
FS.write(stream, data, 0, lengthBytesUTF8(str)+1, pos, /*canOwn=*/false);
FS.close(stream);
);
std::ifstream file("testfile");
std::string line;
getline(file, line);
std::cout << "read " << line << std::endl;
return 0;
}
|
