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48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
// Copyright 2024 The Abseil Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef ABSL_DEBUGGING_INTERNAL_UTF8_FOR_CODE_POINT_H_
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#define ABSL_DEBUGGING_INTERNAL_UTF8_FOR_CODE_POINT_H_
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#include <cstdint>
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#include "absl/base/config.h"
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namespace absl {
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ABSL_NAMESPACE_BEGIN
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namespace debugging_internal {
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struct Utf8ForCodePoint {
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// Converts a Unicode code point to the corresponding UTF-8 byte sequence.
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// Async-signal-safe to support use in symbolizing stack traces from a signal
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// handler.
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explicit Utf8ForCodePoint(uint64_t code_point);
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// Returns true if the constructor's code_point argument was valid.
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bool ok() const { return length != 0; }
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// If code_point was in range, then 1 <= length <= 4, and the UTF-8 encoding
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// is found in bytes[0 .. (length - 1)]. If code_point was invalid, then
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// length == 0. In either case, the contents of bytes[length .. 3] are
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// unspecified.
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char bytes[4] = {};
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uint32_t length = 0;
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};
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} // namespace debugging_internal
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ABSL_NAMESPACE_END
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} // namespace absl
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#endif // ABSL_DEBUGGING_INTERNAL_UTF8_FOR_CODE_POINT_H_
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