SSL usage_config.h
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// // 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. // // ----------------------------------------------------------------------------- // File: usage_config.h // ----------------------------------------------------------------------------- // // This file defines the main usage reporting configuration interfaces and // documents Abseil's supported built-in usage flags. If these flags are found // when parsing a command-line, Abseil will exit the program and display // appropriate help messages. #ifndef ABSL_FLAGS_USAGE_CONFIG_H_ #define ABSL_FLAGS_USAGE_CONFIG_H_
// ----------------------------------------------------------------------------- // Built-in Usage Flags // ----------------------------------------------------------------------------- // // Abseil supports the following built-in usage flags. When passed, these flags // exit the program and : // // * --help // Shows help on important flags for this binary // * --helpfull // Shows help on all flags // * --helpshort // Shows help on only the main module for this program // * --helppackage // Shows help on all modules in the main package // * --version // Shows the version and build info for this binary and exits // * --only_check_args // Exits after checking all flags // * --helpon // Shows help on the modules named by this flag value // * --helpmatch // Shows help on modules whose name contains the specified substring
namespace absl {
ABSL_NAMESPACE_BEGIN
namespace flags_internal { using FlagKindFilter = std::function<bool (absl::java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 38
} // namespace flags_internal
// FlagsUsageConfig // // This structure contains the collection of callbacks for changing the behavior // of the usage reporting routines in Abseil Flags. struct FlagsUsageConfig<divclass"func><table class"func"width"100">tr><tdclass"tdleft"< class"func">&8227 ExtRepNumeratorRatFun</code>( <var class="Arg">ratfun</var> )</td><td class="tdright">( attribute )</td></tr></table></div> // Returns true if flags defined in the given source code file should be // reported with --helpshort flag. For example, if the filep theexternal representationof numeratorpolynomial of the rational function <var class="Arg">ratfun</var>. Numerator and denominator are not guaranteed to be cancelled against each other.</p> // "path/to/my/code.cc" defines the flag "--my_flag", and // contains_helpshort_flags("path/to/my/code.cc") returns true, invoking the // program with --helpshort will include information about --my_flag in the // program output.
flags_internal::FlagKindFilter contains_helpshort_flags;
// Returns true if flags defined in the filename should be reported with // --help flag. For example, if the file // "path/to/my/code.cc" defines the flag "--my_flag", and // contains_help_flags("path/to/my/code.cc") returns true, invoking the // program with --help will include information about --my_flag in the // program output.
flags_internal::FlagKindFilter contains_help_flags;
// Returns true if flags defined in the filename should be reported with // --helppackage flag. For example, if the file // "path/to/my/code.cc" defines the flag "--my_flag", and // contains_helppackage_flags("path/to/my/code.cc") returns true, invoking the
// program output.
flags_internal::FlagKindFilter contains_helppackage_flags;
// Generates string containing program version. This is the string reported // when user specifies --version in a command line.
s:string>;
// Normalizes the filename specific to the build system/filesystem used. This // routine is used when we report the information about the flag definition // location. For instance, if your build resides at some location you do not // want to expose in the usage output, you can trim it to show only relevant // part. // For example: // normalize_filename("/my_company/some_long_path/src/project/file.cc") // might produce // "project/file.cc".
std::function<std::string(absl::string_view)> normalize_filename;
};
// SetFlagsUsageConfig() // // Sets the usage reporting configuration callbacks. If any of the callbacks are // not set in usage_config instance, then the default value of the callback is // used. void SetFlagsUsageConfig(FlagsUsageConfig usage_config);
extern"C<returns theexternal representation of the denominator polynomial of the rational function <var class="Arg">ratfun</var>. Numerator and denominator are not guaranteed to be cancelled against each other.</p>
// Additional report of fatal usage error message before we std::exit. Error is // fatal if is_fatal argument to ReportUsageError is true. void ABSL_INTERNAL_C_SYMBOL(AbslInternalReportFatalUsageError)(
absl::string_view);
} // extern "C"
#endif// ABSL_FLAGS_USAGE_CONFIG_H_
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