chore(3p/abseil_cpp): unvendor abseil_cpp r/3786

we weren't actually using these sources anymore, okay?

Change-Id: If701571d9716de308d3512e1eb22c35db0877a66
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5248
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
Autosubmit: tazjin <tazjin@tvl.su>

1 files changed, 0 insertions, 408 deletions

diff --git a/third_party/abseil_cpp/absl/strings/str_cat.h b/third_party/abseil_cpp/absl/strings/str_cat.h
deleted file mode 100644
index a8a85c7322b2..000000000000
--- a/third_party/abseil_cpp/absl/strings/str_cat.h
+++ /dev/null
@@ -1,408 +0,0 @@
-//
-// 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
-//
-//      https://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.
-//
-// -----------------------------------------------------------------------------
-// File: str_cat.h
-// -----------------------------------------------------------------------------
-//
-// This package contains functions for efficiently concatenating and appending
-// strings: `StrCat()` and `StrAppend()`. Most of the work within these routines
-// is actually handled through use of a special AlphaNum type, which was
-// designed to be used as a parameter type that efficiently manages conversion
-// to strings and avoids copies in the above operations.
-//
-// Any routine accepting either a string or a number may accept `AlphaNum`.
-// The basic idea is that by accepting a `const AlphaNum &` as an argument
-// to your function, your callers will automagically convert bools, integers,
-// and floating point values to strings for you.
-//
-// NOTE: Use of `AlphaNum` outside of the //absl/strings package is unsupported
-// except for the specific case of function parameters of type `AlphaNum` or
-// `const AlphaNum &`. In particular, instantiating `AlphaNum` directly as a
-// stack variable is not supported.
-//
-// Conversion from 8-bit values is not accepted because, if it were, then an
-// attempt to pass ':' instead of ":" might result in a 58 ending up in your
-// result.
-//
-// Bools convert to "0" or "1". Pointers to types other than `char *` are not
-// valid inputs. No output is generated for null `char *` pointers.
-//
-// Floating point numbers are formatted with six-digit precision, which is
-// the default for "std::cout <<" or printf "%g" (the same as "%.6g").
-//
-// You can convert to hexadecimal output rather than decimal output using the
-// `Hex` type contained here. To do so, pass `Hex(my_int)` as a parameter to
-// `StrCat()` or `StrAppend()`. You may specify a minimum hex field width using
-// a `PadSpec` enum.
-//
-// -----------------------------------------------------------------------------
-
-#ifndef ABSL_STRINGS_STR_CAT_H_
-#define ABSL_STRINGS_STR_CAT_H_
-
-#include <array>
-#include <cstdint>
-#include <string>
-#include <type_traits>
-#include <vector>
-
-#include "absl/base/port.h"
-#include "absl/strings/numbers.h"
-#include "absl/strings/string_view.h"
-
-namespace absl {
-ABSL_NAMESPACE_BEGIN
-
-namespace strings_internal {
-// AlphaNumBuffer allows a way to pass a string to StrCat without having to do
-// memory allocation.  It is simply a pair of a fixed-size character array, and
-// a size.  Please don't use outside of absl, yet.
-template <size_t max_size>
-struct AlphaNumBuffer {
-  std::array<char, max_size> data;
-  size_t size;
-};
-
-}  // namespace strings_internal
-
-// Enum that specifies the number of significant digits to return in a `Hex` or
-// `Dec` conversion and fill character to use. A `kZeroPad2` value, for example,
-// would produce hexadecimal strings such as "0a","0f" and a 'kSpacePad5' value
-// would produce hexadecimal strings such as "    a","    f".
-enum PadSpec : uint8_t {
-  kNoPad = 1,
-  kZeroPad2,
-  kZeroPad3,
-  kZeroPad4,
-  kZeroPad5,
-  kZeroPad6,
-  kZeroPad7,
-  kZeroPad8,
-  kZeroPad9,
-  kZeroPad10,
-  kZeroPad11,
-  kZeroPad12,
-  kZeroPad13,
-  kZeroPad14,
-  kZeroPad15,
-  kZeroPad16,
-  kZeroPad17,
-  kZeroPad18,
-  kZeroPad19,
-  kZeroPad20,
-
-  kSpacePad2 = kZeroPad2 + 64,
-  kSpacePad3,
-  kSpacePad4,
-  kSpacePad5,
-  kSpacePad6,
-  kSpacePad7,
-  kSpacePad8,
-  kSpacePad9,
-  kSpacePad10,
-  kSpacePad11,
-  kSpacePad12,
-  kSpacePad13,
-  kSpacePad14,
-  kSpacePad15,
-  kSpacePad16,
-  kSpacePad17,
-  kSpacePad18,
-  kSpacePad19,
-  kSpacePad20,
-};
-
-// -----------------------------------------------------------------------------
-// Hex
-// -----------------------------------------------------------------------------
-//
-// `Hex` stores a set of hexadecimal string conversion parameters for use
-// within `AlphaNum` string conversions.
-struct Hex {
-  uint64_t value;
-  uint8_t width;
-  char fill;
-
-  template <typename Int>
-  explicit Hex(
-      Int v, PadSpec spec = absl::kNoPad,
-      typename std::enable_if<sizeof(Int) == 1 &&
-                              !std::is_pointer<Int>::value>::type* = nullptr)
-      : Hex(spec, static_cast<uint8_t>(v)) {}
-  template <typename Int>
-  explicit Hex(
-      Int v, PadSpec spec = absl::kNoPad,
-      typename std::enable_if<sizeof(Int) == 2 &&
-                              !std::is_pointer<Int>::value>::type* = nullptr)
-      : Hex(spec, static_cast<uint16_t>(v)) {}
-  template <typename Int>
-  explicit Hex(
-      Int v, PadSpec spec = absl::kNoPad,
-      typename std::enable_if<sizeof(Int) == 4 &&
-                              !std::is_pointer<Int>::value>::type* = nullptr)
-      : Hex(spec, static_cast<uint32_t>(v)) {}
-  template <typename Int>
-  explicit Hex(
-      Int v, PadSpec spec = absl::kNoPad,
-      typename std::enable_if<sizeof(Int) == 8 &&
-                              !std::is_pointer<Int>::value>::type* = nullptr)
-      : Hex(spec, static_cast<uint64_t>(v)) {}
-  template <typename Pointee>
-  explicit Hex(Pointee* v, PadSpec spec = absl::kNoPad)
-      : Hex(spec, reinterpret_cast<uintptr_t>(v)) {}
-
- private:
-  Hex(PadSpec spec, uint64_t v)
-      : value(v),
-        width(spec == absl::kNoPad
-                  ? 1
-                  : spec >= absl::kSpacePad2 ? spec - absl::kSpacePad2 + 2
-                                             : spec - absl::kZeroPad2 + 2),
-        fill(spec >= absl::kSpacePad2 ? ' ' : '0') {}
-};
-
-// -----------------------------------------------------------------------------
-// Dec
-// -----------------------------------------------------------------------------
-//
-// `Dec` stores a set of decimal string conversion parameters for use
-// within `AlphaNum` string conversions.  Dec is slower than the default
-// integer conversion, so use it only if you need padding.
-struct Dec {
-  uint64_t value;
-  uint8_t width;
-  char fill;
-  bool neg;
-
-  template <typename Int>
-  explicit Dec(Int v, PadSpec spec = absl::kNoPad,
-               typename std::enable_if<(sizeof(Int) <= 8)>::type* = nullptr)
-      : value(v >= 0 ? static_cast<uint64_t>(v)
-                     : uint64_t{0} - static_cast<uint64_t>(v)),
-        width(spec == absl::kNoPad
-                  ? 1
-                  : spec >= absl::kSpacePad2 ? spec - absl::kSpacePad2 + 2
-                                             : spec - absl::kZeroPad2 + 2),
-        fill(spec >= absl::kSpacePad2 ? ' ' : '0'),
-        neg(v < 0) {}
-};
-
-// -----------------------------------------------------------------------------
-// AlphaNum
-// -----------------------------------------------------------------------------
-//
-// The `AlphaNum` class acts as the main parameter type for `StrCat()` and
-// `StrAppend()`, providing efficient conversion of numeric, boolean, and
-// hexadecimal values (through the `Hex` type) into strings.
-
-class AlphaNum {
- public:
-  // No bool ctor -- bools convert to an integral type.
-  // A bool ctor would also convert incoming pointers (bletch).
-
-  AlphaNum(int x)  // NOLINT(runtime/explicit)
-      : piece_(digits_,
-               numbers_internal::FastIntToBuffer(x, digits_) - &digits_[0]) {}
-  AlphaNum(unsigned int x)  // NOLINT(runtime/explicit)
-      : piece_(digits_,
-               numbers_internal::FastIntToBuffer(x, digits_) - &digits_[0]) {}
-  AlphaNum(long x)  // NOLINT(*)
-      : piece_(digits_,
-               numbers_internal::FastIntToBuffer(x, digits_) - &digits_[0]) {}
-  AlphaNum(unsigned long x)  // NOLINT(*)
-      : piece_(digits_,
-               numbers_internal::FastIntToBuffer(x, digits_) - &digits_[0]) {}
-  AlphaNum(long long x)  // NOLINT(*)
-      : piece_(digits_,
-               numbers_internal::FastIntToBuffer(x, digits_) - &digits_[0]) {}
-  AlphaNum(unsigned long long x)  // NOLINT(*)
-      : piece_(digits_,
-               numbers_internal::FastIntToBuffer(x, digits_) - &digits_[0]) {}
-
-  AlphaNum(float f)  // NOLINT(runtime/explicit)
-      : piece_(digits_, numbers_internal::SixDigitsToBuffer(f, digits_)) {}
-  AlphaNum(double f)  // NOLINT(runtime/explicit)
-      : piece_(digits_, numbers_internal::SixDigitsToBuffer(f, digits_)) {}
-
-  AlphaNum(Hex hex);  // NOLINT(runtime/explicit)
-  AlphaNum(Dec dec);  // NOLINT(runtime/explicit)
-
-  template <size_t size>
-  AlphaNum(  // NOLINT(runtime/explicit)
-      const strings_internal::AlphaNumBuffer<size>& buf)
-      : piece_(&buf.data[0], buf.size) {}
-
-  AlphaNum(const char* c_str) : piece_(c_str) {}  // NOLINT(runtime/explicit)
-  AlphaNum(absl::string_view pc) : piece_(pc) {}  // NOLINT(runtime/explicit)
-
-  template <typename Allocator>
-  AlphaNum(  // NOLINT(runtime/explicit)
-      const std::basic_string<char, std::char_traits<char>, Allocator>& str)
-      : piece_(str) {}
-
-  // Use string literals ":" instead of character literals ':'.
-  AlphaNum(char c) = delete;  // NOLINT(runtime/explicit)
-
-  AlphaNum(const AlphaNum&) = delete;
-  AlphaNum& operator=(const AlphaNum&) = delete;
-
-  absl::string_view::size_type size() const { return piece_.size(); }
-  const char* data() const { return piece_.data(); }
-  absl::string_view Piece() const { return piece_; }
-
-  // Normal enums are already handled by the integer formatters.
-  // This overload matches only scoped enums.
-  template <typename T,
-            typename = typename std::enable_if<
-                std::is_enum<T>{} && !std::is_convertible<T, int>{}>::type>
-  AlphaNum(T e)  // NOLINT(runtime/explicit)
-      : AlphaNum(static_cast<typename std::underlying_type<T>::type>(e)) {}
-
-  // vector<bool>::reference and const_reference require special help to
-  // convert to `AlphaNum` because it requires two user defined conversions.
-  template <
-      typename T,
-      typename std::enable_if<
-          std::is_class<T>::value &&
-          (std::is_same<T, std::vector<bool>::reference>::value ||
-           std::is_same<T, std::vector<bool>::const_reference>::value)>::type* =
-          nullptr>
-  AlphaNum(T e) : AlphaNum(static_cast<bool>(e)) {}  // NOLINT(runtime/explicit)
-
- private:
-  absl::string_view piece_;
-  char digits_[numbers_internal::kFastToBufferSize];
-};
-
-// -----------------------------------------------------------------------------
-// StrCat()
-// -----------------------------------------------------------------------------
-//
-// Merges given strings or numbers, using no delimiter(s), returning the merged
-// result as a string.
-//
-// `StrCat()` is designed to be the fastest possible way to construct a string
-// out of a mix of raw C strings, string_views, strings, bool values,
-// and numeric values.
-//
-// Don't use `StrCat()` for user-visible strings. The localization process
-// works poorly on strings built up out of fragments.
-//
-// For clarity and performance, don't use `StrCat()` when appending to a
-// string. Use `StrAppend()` instead. In particular, avoid using any of these
-// (anti-)patterns:
-//
-//   str.append(StrCat(...))
-//   str += StrCat(...)
-//   str = StrCat(str, ...)
-//
-// The last case is the worst, with a potential to change a loop
-// from a linear time operation with O(1) dynamic allocations into a
-// quadratic time operation with O(n) dynamic allocations.
-//
-// See `StrAppend()` below for more information.
-
-namespace strings_internal {
-
-// Do not call directly - this is not part of the public API.
-std::string CatPieces(std::initializer_list<absl::string_view> pieces);
-void AppendPieces(std::string* dest,
-                  std::initializer_list<absl::string_view> pieces);
-
-}  // namespace strings_internal
-
-ABSL_MUST_USE_RESULT inline std::string StrCat() { return std::string(); }
-
-ABSL_MUST_USE_RESULT inline std::string StrCat(const AlphaNum& a) {
-  return std::string(a.data(), a.size());
-}
-
-ABSL_MUST_USE_RESULT std::string StrCat(const AlphaNum& a, const AlphaNum& b);
-ABSL_MUST_USE_RESULT std::string StrCat(const AlphaNum& a, const AlphaNum& b,
-                                        const AlphaNum& c);
-ABSL_MUST_USE_RESULT std::string StrCat(const AlphaNum& a, const AlphaNum& b,
-                                        const AlphaNum& c, const AlphaNum& d);
-
-// Support 5 or more arguments
-template <typename... AV>
-ABSL_MUST_USE_RESULT inline std::string StrCat(
-    const AlphaNum& a, const AlphaNum& b, const AlphaNum& c, const AlphaNum& d,
-    const AlphaNum& e, const AV&... args) {
-  return strings_internal::CatPieces(
-      {a.Piece(), b.Piece(), c.Piece(), d.Piece(), e.Piece(),
-       static_cast<const AlphaNum&>(args).Piece()...});
-}
-
-// -----------------------------------------------------------------------------
-// StrAppend()
-// -----------------------------------------------------------------------------
-//
-// Appends a string or set of strings to an existing string, in a similar
-// fashion to `StrCat()`.
-//
-// WARNING: `StrAppend(&str, a, b, c, ...)` requires that none of the
-// a, b, c, parameters be a reference into str. For speed, `StrAppend()` does
-// not try to check each of its input arguments to be sure that they are not
-// a subset of the string being appended to. That is, while this will work:
-//
-//   std::string s = "foo";
-//   s += s;
-//
-// This output is undefined:
-//
-//   std::string s = "foo";
-//   StrAppend(&s, s);
-//
-// This output is undefined as well, since `absl::string_view` does not own its
-// data:
-//
-//   std::string s = "foobar";
-//   absl::string_view p = s;
-//   StrAppend(&s, p);
-
-inline void StrAppend(std::string*) {}
-void StrAppend(std::string* dest, const AlphaNum& a);
-void StrAppend(std::string* dest, const AlphaNum& a, const AlphaNum& b);
-void StrAppend(std::string* dest, const AlphaNum& a, const AlphaNum& b,
-               const AlphaNum& c);
-void StrAppend(std::string* dest, const AlphaNum& a, const AlphaNum& b,
-               const AlphaNum& c, const AlphaNum& d);
-
-// Support 5 or more arguments
-template <typename... AV>
-inline void StrAppend(std::string* dest, const AlphaNum& a, const AlphaNum& b,
-                      const AlphaNum& c, const AlphaNum& d, const AlphaNum& e,
-                      const AV&... args) {
-  strings_internal::AppendPieces(
-      dest, {a.Piece(), b.Piece(), c.Piece(), d.Piece(), e.Piece(),
-             static_cast<const AlphaNum&>(args).Piece()...});
-}
-
-// Helper function for the future StrCat default floating-point format, %.6g
-// This is fast.
-inline strings_internal::AlphaNumBuffer<
-    numbers_internal::kSixDigitsToBufferSize>
-SixDigits(double d) {
-  strings_internal::AlphaNumBuffer<numbers_internal::kSixDigitsToBufferSize>
-      result;
-  result.size = numbers_internal::SixDigitsToBuffer(d, &result.data[0]);
-  return result;
-}
-
-ABSL_NAMESPACE_END
-}  // namespace absl
-
-#endif  // ABSL_STRINGS_STR_CAT_H_