39 lines
1.0 KiB
C++
39 lines
1.0 KiB
C++
/*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#include "DoubleConversions.h"
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#include <double-conversion/double-conversion.h>
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#include <array>
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namespace facebook::react {
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std::string toString(double doubleValue, char suffix) {
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// Format taken from folly's toString
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static double_conversion::DoubleToStringConverter conv(
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0,
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nullptr,
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nullptr,
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'E',
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-6, // detail::kConvMaxDecimalInShortestLow,
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21, // detail::kConvMaxDecimalInShortestHigh,
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6, // max leading padding zeros
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1); // max trailing padding zeros
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std::array<char, 256> buffer{};
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double_conversion::StringBuilder builder(buffer.data(), buffer.size());
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if (!conv.ToShortest(doubleValue, &builder)) {
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// Serialize infinite and NaN as 0
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builder.AddCharacter('0');
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}
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if (suffix != '\0') {
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builder.AddCharacter(suffix);
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}
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return builder.Finalize();
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}
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} // namespace facebook::react
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