- e2f6b8ac647271815b4fed2991f405524dd762c3 Release cctz microbenchmarks. by Alex Strelnikov <strel@google.com>

  - 924ba2a3f9fca695d73c6bf491d20669e2b96b8e Changed RawPtr to use std::addressof() instead of operato... by Abseil Team <absl-team@google.com>
  - e8cf67f9fa74d4c5632da35547025ad2301c6819 Import of CCTZ from GitHub. by Alex Strelnikov <strel@google.com>
  - 2ece8a96611afcddd7b91e0197dadb896248250c Abandon ".inc" files in favor of ".h" headers. by Jorg Brown <jorg@google.com>
  - 37f5ed5da4058f90fb3e6a2733fce5b1fd0aaedf Add exception safety tests for absl::optional<T> by Abseil Team <absl-team@google.com>
  - 337f995a866b8f905f64ca6b271b5fec8f248a60 Update WORKSPACE to grab specific commits of dependencies... by Alex Strelnikov <strel@google.com>
  - 93e5b134607a554993387ad913e6c1621606004b Release Charmap microbenchmark. by Alex Strelnikov <strel@google.com>
  - 95c2e29b6d93ec1334484ee37d91f63101c45307 Release OStringStream microbenchmarks. by Alex Strelnikov <strel@google.com>
  - 250f51839ed26dd1e6b658d35aa291413e5f4825 Internal change by Greg Falcon <gfalcon@google.com>
  - ce34900fa3d1a95a8446bc943cdd801fac95be25 Improve compatibility of cctz cc_test targets for portabl... by Shaindel Schwartz <shaindel@google.com>
  - ce7e31dbf2c1ee93c79aae5b7dc7c603cb4babcf Improve portability of cc_tests. (Mark more tests that ca... by Abseil Team <absl-team@google.com>
  - dfcd4e455923703c1a1dcd523c5f915f7990fa2a Accept strings with custom allocators as arguments to abs... by Greg Falcon <gfalcon@google.com>
  - 2946b41ed3d5b8b5a8dc11182e443cf1ab6e3bde Link against benchmark_main instead of using BENCHMARK_MA... by Alex Strelnikov <strel@google.com>
  - f09de9e03bf8edd363069c4b352d8009423f531c Adds link to doc about the formats allowed by SimpleAtof(... by Greg Miller <jgm@google.com>
  - 59b0977e7a308e0800277886cf60226b2cc426a1 Simplify the HideMask() calculation so that it doesn't us... by Jorg Brown <jorg@google.com>

GitOrigin-RevId: e2f6b8ac647271815b4fed2991f405524dd762c3
Change-Id: Ib9c8547ed7fe217fad6cb3ab1362e96181aa5cfa

1 files changed, 178 insertions, 0 deletions

diff --git a/absl/strings/internal/numbers_test_common.h b/absl/strings/internal/numbers_test_common.h
new file mode 100644
index 000000000000..20e3af51141e
--- /dev/null
+++ b/absl/strings/internal/numbers_test_common.h
@@ -0,0 +1,178 @@
+// Copyright 2017 The Abseil Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// This file contains common things needed by numbers_test.cc,
+// numbers_legacy_test.cc and numbers_benchmark.cc.
+
+#ifndef ABSL_STRINGS_INTERNAL_NUMBERS_TEST_COMMON_H_
+#define ABSL_STRINGS_INTERNAL_NUMBERS_TEST_COMMON_H_
+
+#include <array>
+#include <cstdint>
+#include <limits>
+#include <string>
+
+namespace absl {
+namespace strings_internal {
+
+template <typename IntType>
+inline bool Itoa(IntType value, int base, std::string* destination) {
+  destination->clear();
+  if (base <= 1 || base > 36) {
+    return false;
+  }
+
+  if (value == 0) {
+    destination->push_back('0');
+    return true;
+  }
+
+  bool negative = value < 0;
+  while (value != 0) {
+    const IntType next_value = value / base;
+    // Can't use std::abs here because of problems when IntType is unsigned.
+    int remainder = value > next_value * base ? value - next_value * base
+                                              : next_value * base - value;
+    char c = remainder < 10 ? '0' + remainder : 'A' + remainder - 10;
+    destination->insert(0, 1, c);
+    value = next_value;
+  }
+
+  if (negative) {
+    destination->insert(0, 1, '-');
+  }
+  return true;
+}
+
+struct uint32_test_case {
+  const char* str;
+  bool expect_ok;
+  int base;  // base to pass to the conversion function
+  uint32_t expected;
+};
+
+inline const std::array<uint32_test_case, 27>& strtouint32_test_cases() {
+  static const std::array<uint32_test_case, 27> test_cases{{
+      {"0xffffffff", true, 16, std::numeric_limits<uint32_t>::max()},
+      {"0x34234324", true, 16, 0x34234324},
+      {"34234324", true, 16, 0x34234324},
+      {"0", true, 16, 0},
+      {" \t\n 0xffffffff", true, 16, std::numeric_limits<uint32_t>::max()},
+      {" \f\v 46", true, 10, 46},  // must accept weird whitespace
+      {" \t\n 72717222", true, 8, 072717222},
+      {" \t\n 072717222", true, 8, 072717222},
+      {" \t\n 072717228", false, 8, 07271722},
+      {"0", true, 0, 0},
+
+      // Base-10 version.
+      {"34234324", true, 0, 34234324},
+      {"4294967295", true, 0, std::numeric_limits<uint32_t>::max()},
+      {"34234324 \n\t", true, 10, 34234324},
+
+      // Unusual base
+      {"0", true, 3, 0},
+      {"2", true, 3, 2},
+      {"11", true, 3, 4},
+
+      // Invalid uints.
+      {"", false, 0, 0},
+      {"  ", false, 0, 0},
+      {"abc", false, 0, 0},  // would be valid hex, but prefix is missing
+      {"34234324a", false, 0, 34234324},
+      {"34234.3", false, 0, 34234},
+      {"-1", false, 0, 0},
+      {"   -123", false, 0, 0},
+      {" \t\n -123", false, 0, 0},
+
+      // Out of bounds.
+      {"4294967296", false, 0, std::numeric_limits<uint32_t>::max()},
+      {"0x100000000", false, 0, std::numeric_limits<uint32_t>::max()},
+      {nullptr, false, 0, 0},
+  }};
+  return test_cases;
+}
+
+struct uint64_test_case {
+  const char* str;
+  bool expect_ok;
+  int base;
+  uint64_t expected;
+};
+
+inline const std::array<uint64_test_case, 34>& strtouint64_test_cases() {
+  static const std::array<uint64_test_case, 34> test_cases{{
+      {"0x3423432448783446", true, 16, int64_t{0x3423432448783446}},
+      {"3423432448783446", true, 16, int64_t{0x3423432448783446}},
+
+      {"0", true, 16, 0},
+      {"000", true, 0, 0},
+      {"0", true, 0, 0},
+      {" \t\n 0xffffffffffffffff", true, 16,
+       std::numeric_limits<uint64_t>::max()},
+
+      {"012345670123456701234", true, 8, int64_t{012345670123456701234}},
+      {"12345670123456701234", true, 8, int64_t{012345670123456701234}},
+
+      {"12845670123456701234", false, 8, 0},
+
+      // Base-10 version.
+      {"34234324487834466", true, 0, int64_t{34234324487834466}},
+
+      {" \t\n 18446744073709551615", true, 0,
+       std::numeric_limits<uint64_t>::max()},
+
+      {"34234324487834466 \n\t ", true, 0, int64_t{34234324487834466}},
+
+      {" \f\v 46", true, 10, 46},  // must accept weird whitespace
+
+      // Unusual base
+      {"0", true, 3, 0},
+      {"2", true, 3, 2},
+      {"11", true, 3, 4},
+
+      {"0", true, 0, 0},
+
+      // Invalid uints.
+      {"", false, 0, 0},
+      {"  ", false, 0, 0},
+      {"abc", false, 0, 0},
+      {"34234324487834466a", false, 0, 0},
+      {"34234487834466.3", false, 0, 0},
+      {"-1", false, 0, 0},
+      {"   -123", false, 0, 0},
+      {" \t\n -123", false, 0, 0},
+
+      // Out of bounds.
+      {"18446744073709551616", false, 10, 0},
+      {"18446744073709551616", false, 0, 0},
+      {"0x10000000000000000", false, 16, std::numeric_limits<uint64_t>::max()},
+      {"0X10000000000000000", false, 16,
+       std::numeric_limits<uint64_t>::max()},  // 0X versus 0x.
+      {"0x10000000000000000", false, 0, std::numeric_limits<uint64_t>::max()},
+      {"0X10000000000000000", false, 0,
+       std::numeric_limits<uint64_t>::max()},  // 0X versus 0x.
+
+      {"0x1234", true, 16, 0x1234},
+
+      // Base-10 std::string version.
+      {"1234", true, 0, 1234},
+      {nullptr, false, 0, 0},
+  }};
+  return test_cases;
+}
+
+}  // namespace strings_internal
+}  // namespace absl
+
+#endif  // ABSL_STRINGS_INTERNAL_NUMBERS_TEST_COMMON_H_