// Copyright 2013 the V8 project authors. All rights reserved.
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// modification, are permitted provided that the following conditions are
// met:
//
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// Flags: --allow-natives-syntax

var string = "hello world";
var expected = "Hello " + "world";
function Capitalize() {
  %_OneByteSeqStringSetChar(0, 0x48, string);
}
Capitalize();
assertEquals(expected, string);
Capitalize();
assertEquals(expected, string);

var twobyte = "\u20ACello world";

function TwoByteCapitalize() {
  %_TwoByteSeqStringSetChar(0, 0x48, twobyte);
}
TwoByteCapitalize();
assertEquals(expected, twobyte);
TwoByteCapitalize();
assertEquals(expected, twobyte);