Abseil Common Libraries (C++) (grcp 依赖)
https://abseil.io/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
43 lines
1.5 KiB
43 lines
1.5 KiB
// |
|
// 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_USAGE_H_ |
|
#define ABSL_FLAGS_USAGE_H_ |
|
|
|
#include "absl/base/config.h" |
|
#include "absl/strings/string_view.h" |
|
|
|
// -------------------------------------------------------------------- |
|
// Usage reporting interfaces |
|
|
|
namespace absl { |
|
ABSL_NAMESPACE_BEGIN |
|
|
|
// Sets the "usage" message to be used by help reporting routines. |
|
// For example: |
|
// absl::SetProgramUsageMessage( |
|
// absl::StrCat("This program does nothing. Sample usage:\n", argv[0], |
|
// " <uselessarg1> <uselessarg2>")); |
|
// Do not include commandline flags in the usage: we do that for you! |
|
// Note: Calling SetProgramUsageMessage twice will trigger a call to std::exit. |
|
void SetProgramUsageMessage(absl::string_view new_usage_message); |
|
|
|
// Returns the usage message set by SetProgramUsageMessage(). |
|
absl::string_view ProgramUsageMessage(); |
|
|
|
ABSL_NAMESPACE_END |
|
} // namespace absl |
|
|
|
#endif // ABSL_FLAGS_USAGE_H_
|
|
|