Coverage Report

Created: 2025-06-13 06:49

/src/spirv-tools/source/to_string.cpp
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Source
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// Copyright (c) 2024 Google LLC
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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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//     http://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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#include "source/to_string.h"
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#include <cassert>
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namespace spvtools {
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45.7M
std::string to_string(uint32_t n) {
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  // This implementation avoids using standard library features that access
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  // the locale.  Using the locale requires taking a mutex which causes
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  // annoying serialization.
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  constexpr int max_digits = 10;  // max uint has 10 digits
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  // Contains the resulting digits, with least significant digit in the last
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  // entry.
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  char buf[max_digits];
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45.7M
  int write_index = max_digits - 1;
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45.7M
  if (n == 0) {
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342k
    buf[write_index] = '0';
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45.4M
  } else {
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340M
    while (n > 0) {
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294M
      int units = n % 10;
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294M
      buf[write_index--] = "0123456789"[units];
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294M
      n = (n - units) / 10;
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294M
    }
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45.4M
    write_index++;
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45.4M
  }
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45.7M
  assert(write_index >= 0);
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  return std::string(buf + write_index, max_digits - write_index);
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45.7M
}
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}  // namespace spvtools