diff options
Diffstat (limited to 'third_party/abseil-cpp/absl/flags/config.h')
| -rw-r--r-- | third_party/abseil-cpp/absl/flags/config.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/third_party/abseil-cpp/absl/flags/config.h b/third_party/abseil-cpp/absl/flags/config.h new file mode 100644 index 0000000000..001f8feaf6 --- /dev/null +++ b/third_party/abseil-cpp/absl/flags/config.h @@ -0,0 +1,67 @@ +// +// Copyright 2019 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. + +#ifndef ABSL_FLAGS_CONFIG_H_ +#define ABSL_FLAGS_CONFIG_H_ + +// Determine if we should strip string literals from the Flag objects. +// By default we strip string literals on mobile platforms. +#if !defined(ABSL_FLAGS_STRIP_NAMES) + +#if defined(__ANDROID__) +#define ABSL_FLAGS_STRIP_NAMES 1 + +#elif defined(__APPLE__) +#include <TargetConditionals.h> +#if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE +#define ABSL_FLAGS_STRIP_NAMES 1 +#elif defined(TARGET_OS_EMBEDDED) && TARGET_OS_EMBEDDED +#define ABSL_FLAGS_STRIP_NAMES 1 +#endif // TARGET_OS_* +#endif + +#endif // !defined(ABSL_FLAGS_STRIP_NAMES) + +#if !defined(ABSL_FLAGS_STRIP_NAMES) +// If ABSL_FLAGS_STRIP_NAMES wasn't set on the command line or above, +// the default is not to strip. +#define ABSL_FLAGS_STRIP_NAMES 0 +#endif + +#if !defined(ABSL_FLAGS_STRIP_HELP) +// By default, if we strip names, we also strip help. +#define ABSL_FLAGS_STRIP_HELP ABSL_FLAGS_STRIP_NAMES +#endif + +// ABSL_FLAGS_INTERNAL_ATOMIC_DOUBLE_WORD macro is used for using atomics with +// double words, e.g. absl::Duration. +// For reasons in bug https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80878, modern +// versions of GCC do not support cmpxchg16b instruction in standard atomics. +#ifdef ABSL_FLAGS_INTERNAL_ATOMIC_DOUBLE_WORD +#error "ABSL_FLAGS_INTERNAL_ATOMIC_DOUBLE_WORD should not be defined." +#elif defined(__clang__) && defined(__x86_64__) && \ + defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16) +#define ABSL_FLAGS_INTERNAL_ATOMIC_DOUBLE_WORD 1 +#endif + +// ABSL_FLAGS_INTERNAL_HAS_RTTI macro is used for selecting if we can use RTTI +// for flag type identification. +#ifdef ABSL_FLAGS_INTERNAL_HAS_RTTI +#error ABSL_FLAGS_INTERNAL_HAS_RTTI cannot be directly set +#elif !defined(__GNUC__) || defined(__GXX_RTTI) +#define ABSL_FLAGS_INTERNAL_HAS_RTTI 1 +#endif // !defined(__GNUC__) || defined(__GXX_RTTI) + +#endif // ABSL_FLAGS_CONFIG_H_ |