This is the current minimum according to
https://github.com/google/oss-policies-info/blob/main/foundational-cxx-support-matrix.md

PiperOrigin-RevId: 472714045
Change-Id: I5930bbbc4eec4644d22bba703957d1764c2e76be

Change `absl/base/options.h` at install time to reflect the ABI used
to compile the libraries, i.e., if Abseil was compiled with
C++ >= 17 then the `ABSL_OPTION_USE_STD_*` macros are set to `1`,
because then the C++ 17 types are embedded in the ABI of the installed
artifacts.

Likewise, set the `target_compile_features()` of Abseil libraries
to reflect the C++ version used to compile them. If they the Abseil
libraries are compiled with C++ >= 17, then all downstream
dependencies must also be compiled with C++ >= 17.

Fixes #696

PiperOrigin-RevId: 472538165
Change-Id: Ic9e346ebe277c882a18ad96e1918c9e3511c91c3

Fixes bug so that `%v` with modifiers doesn't compile. `%v` is not intended to work with modifiers because the meaning of modifiers is type-dependent and `%v` is intended to be used in situations where the type is not important. Please continue using if `%s` if you require format modifiers.

PiperOrigin-RevId: 472534916
Change-Id: I5838761b2b40cbc4344077f23d44b1e634e5bae3

PiperOrigin-RevId: 472521745
Change-Id: Ia76cd720d1036dce05f6332f41a2ff748b3ea971

PiperOrigin-RevId: 472457798
Change-Id: I4abb971c9bb19cc1a1968525cebf473e41738768

In some cases we can do a bit better by using
std::min(std::numeric_limits<size_type>::max() / 2, allocator<T>::max_size())

They may help in some cases, particularly on 32-bit platforms.

PiperOrigin-RevId: 471846886
Change-Id: I5bd63de5dd8aec3de6530a33d8904dd6e9bd015e

PiperOrigin-RevId: 471833563
Change-Id: Ida281308afab67e73b2da61418e82b22c2110ef9

In the time since pcg_engine.h was written, absl::uint128 was fixed to
generate identical code to __uint128_t

PiperOrigin-RevId: 471789541
Change-Id: Ibd1afc3e5e6d57af27cdd6a21171c96ea333161c

PiperOrigin-RevId: 471639724
Change-Id: Ie609f4d5b15c06fc286fae2944b550937da266d3

PiperOrigin-RevId: 471622229
Change-Id: I787e0da71eaa1f99cc41b7950f93a43c6cced0ed

Refactors checker.h and replaces recursive functions with iterative functions for readability purposes.

PiperOrigin-RevId: 471622216
Change-Id: Ic28ed8e26d5085ccf20290d1b9c7a5e9bc1f0fde

PiperOrigin-RevId: 471621696
Change-Id: I603e5707d896deef3a015c70ceac9778e360f72f

PiperOrigin-RevId: 471600654
Change-Id: Iee722e5d736d341bc81cc10dac290383ba392f87

The problem is that the underlying storage adds redzone after the actual data so from compiler's perspective it looks like a valid memory. In the outlined version the memory is returned in call.i.i with unknown size so the access check can't be removed. The workaround is to always outline the call to InitializeData for ASAN builds.

Outlined version:
  %call.i.i = call noundef i32* @absl::FixedArray<int, 4ul, std::__u::allocator<int> >::Storage::InitializeData()(...), !dbg !28
  store i32* %call.i.i, i32** %data_.i.i, align 8, !dbg !27
  %arrayidx = getelementptr inbounds i32, i32* %call.i.i, i64 5, !dbg !29
  %24 = bitcast i32* %arrayidx to i8*, !dbg !29
  call void @llvm.asan.check.memaccess(i8* %24, i32 36), !dbg !29
  store i32 0, i32* %arrayidx, align 4, !dbg !29

Inlined version:
 %arrayidx = getelementptr inbounds %"class.absl::FixedArray", %"class.absl::FixedArray"* %7, i64 0, i32 0, i32 0, i32 1, i64 20, !dbg !40
  %27 = bitcast i8* %arrayidx to i32*, !dbg !40
  >>>>>>>>>>>>>>> call to @llvm.asan.check.memaccess removed <<<<<<<<<<<<<<
  store i32 0, i32* %27, align 4, !dbg !40

Workaround for ASAN stack safety analysis problem with FixedArray container annotations.

PiperOrigin-RevId: 471583635
Change-Id: I0d74eed5782a1cbd340ca4aca1bce71b63b06d43

Addresses failures with the following, in some files:
-Wshorten-64-to-32
-Wimplicit-int-conversion
-Wsign-compare
-Wsign-conversion
-Wtautological-unsigned-zero-compare

(This specific CL focuses on .cc files in */internal/.)

Bug: chromium:1292951
PiperOrigin-RevId: 471561809
Change-Id: I7abd6d83706f5ca135f1ce3458192a498a6280b9

Addresses failures with the following, in some files:
-Wshorten-64-to-32
-Wimplicit-int-conversion
-Wsign-compare
-Wsign-conversion
-Wtautological-unsigned-zero-compare

(This specific CL focuses on .cc files in */internal/.)

Bug: chromium:1292951
PiperOrigin-RevId: 471549854
Change-Id: Id685d0e4666212926f4e001b8ef4930b6a33a4cc

PiperOrigin-RevId: 471545981
Change-Id: I4d2c8b6d4f1e58976915bda78a77178b8bf80da8

Corrects the computation of max_size(), so that it accounts for the
size of the objects.

PiperOrigin-RevId: 471343778
Change-Id: I68e222cefaa0295b8d8c38d00308a29df4165e81

Adds support for "%v" in absl::StrFormat and related functions for string-like types (support for other builtin types will follow in future changes). Rather than specifying %s for strings, users may specify %v and have the format specifier deduced. Notably, %v does not work for `const char*` because we cannot be certain if %s or %p was intended (nor can we be certain if the `const char*` was properly null-terminated). If you have a `const char*` you know is null-terminated and would like to work with %v, please wrap it in a `string_view` before using it.

PiperOrigin-RevId: 471321055
Change-Id: Ifbb50082d301baecc7edc277975f12e7ad3ecc8a

PiperOrigin-RevId: 471292183
Change-Id: Ic124d671dd3b0ae819f741885abb046cbf7e1add

PiperOrigin-RevId: 471290034
Change-Id: If5bbb990c302827c656c6437e6932221261d1319

PiperOrigin-RevId: 471256712
Change-Id: I2a1e4846a524bccd3c935a40abab0c0218afdfc0

PiperOrigin-RevId: 471030218
Change-Id: I727c7f8966fe9c96736283c8e1a13a76b3cdb53d

tests without requiring Abseil's tests be built (default=OFF)

This disables building libraries that are only used for writing tests
by default.

The logging library releases some libraries used for writing tests
that themselves depend on GoogleTest. This allows Abseil to build by
default without requiring GoogleTest.

Fixes #1262

PiperOrigin-RevId: 470847215
Change-Id: I296f41aa06d6f302853af3f32e1f762649504afc

Addresses failures with the following, in some files:
-Wshorten-64-to-32
-Wimplicit-int-conversion
-Wsign-compare
-Wsign-conversion
-Wtautological-unsigned-zero-compare

(This specific CL focuses on .cc files in debugging/internal/.)

Bug: chromium:1292951
PiperOrigin-RevId: 470812243
Change-Id: I5578030bb42ba73cb83d4df84f89e431ceac8992

Addresses failures with the following, in some files:
-Wshorten-64-to-32
-Wimplicit-int-conversion
-Wsign-compare
-Wsign-conversion
-Wtautological-unsigned-zero-compare

(This specific CL focuses on .cc files in strings/internal/.)

Bug: chromium:1292951
PiperOrigin-RevId: 470810568
Change-Id: Ibd316a7e62cc43cb198ba22daed565c9573ce235

PiperOrigin-RevId: 470080638
Change-Id: I8d9ddfabc7704c383ed5a73abf0411f4c58a4bf7

It looks to me like the language rules treat these the same for this type, but evidently GCC feels differently.

This only matters under TSAN where SpinLock has a non-trivial destructor, and under C++20 where ABSL_CONST_INIT is implemented (as constinit) by gcc.

Fixes #1253

PiperOrigin-RevId: 469806751
Change-Id: Ic01b0142101f361bc19c95f9f9474e635669c58d

1. Removes unused includes
2. Replaces <stdint.h> with <cstdint>

PiperOrigin-RevId: 469705016
Change-Id: Ic32871be93d01436f5538c44321faad7bd2e4511

"ToDoubleNanoSeconds" -> "ToDoubleNanoseconds"

PiperOrigin-RevId: 469525959
Change-Id: I43488ac8706cb857aa3890249a00fc141129dafa

Abseil failed to configure with `ABSL_PROPAGATE_CXX_STD` if the compiler was not known to CMake:

    target_compile_features no known features for CXX compiler

Turns the error into a warning by checking `CMAKE_CXX_COMPILE_FEATURES`
before calling `target_compile_features`.

PiperOrigin-RevId: 469254470
Change-Id: Ifba006dcdbf6a7112e382075b24678a792dbc827

PiperOrigin-RevId: 468509663
Change-Id: I8b8d57cae59b4f44fb15ceb7a0d0c05310714921

This matches std::bit_width().

Bug: chromium:1292951
PiperOrigin-RevId: 468495319
Change-Id: I0e428addb6a7353abbf2063c5c2f5820c3bae789

PiperOrigin-RevId: 468322981
Change-Id: I61762a1a83d5b138fd2e1a93035a5087a51a4e84

PiperOrigin-RevId: 468237562
Change-Id: Ibb514d2ffe0d7227f495e612eb74a95a8cf963c3

Don't try to enable use of ARM NEON intrinsics when compiling in CUDA device mode. They are not available in that configuration, even if the host supports them.

PiperOrigin-RevId: 468232254
Change-Id: I1cd26eda2962778b62135a31f477928c3bde1124

Update replace_in_file call to match changes in CMakeLists.

Addresses failures with the following, in some files:
-Wshorten-64-to-32
-Wimplicit-int-conversion
-Wsign-compare
-Wsign-conversion
-Wtautological-unsigned-zero-compare

(This specific CL focuses on .cc files in strings/internal/.)

Bug: chromium:1292951
PiperOrigin-RevId: 468215101
Change-Id: I07fa487bcf2cf62d403489c3be7a5997cdef8987

Addresses failures with the following, in some files:
-Wshorten-64-to-32
-Wimplicit-int-conversion
-Wsign-compare
-Wsign-conversion
-Wtautological-unsigned-zero-compare

(This specific CL focuses on .cc files in strings/, except /internal/.)

Bug: chromium:1292951
PiperOrigin-RevId: 468205572
Change-Id: Ifce3f1a7a4b2b2c359bf7700a11279bebfef8a15