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// Copyright (c) 2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/i18n/number_formatting.h"
#include "base/format_macros.h"
#include "base/logging.h"
#include "base/singleton.h"
#include "base/string_util.h"
#include "base/utf_string_conversions.h"
#include "unicode/numfmt.h"
#include "unicode/ustring.h"
namespace base {
namespace {
struct NumberFormatSingletonTraits
: public DefaultSingletonTraits<icu::NumberFormat> {
static icu::NumberFormat* New() {
UErrorCode status = U_ZERO_ERROR;
icu::NumberFormat* formatter = icu::NumberFormat::createInstance(status);
DCHECK(U_SUCCESS(status));
return formatter;
}
// There's no ICU call to destroy a NumberFormat object other than
// operator delete, so use the default Delete, which calls operator delete.
// This can cause problems if a different allocator is used by this file than
// by ICU.
};
} // namespace
string16 FormatNumber(int64 number) {
icu::NumberFormat* number_format =
Singleton<icu::NumberFormat, NumberFormatSingletonTraits>::get();
if (!number_format) {
// As a fallback, just return the raw number in a string.
return UTF8ToUTF16(StringPrintf("%" PRId64, number));
}
icu::UnicodeString ustr;
number_format->format(number, ustr);
return string16(ustr.getBuffer(), static_cast<size_t>(ustr.length()));
}
} // namespace base
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