EVOLUTION-MANAGER

Edit File: env_var.h

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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http://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,
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==============================================================================*/

#ifndef TENSORFLOW_CORE_UTIL_ENV_VAR_H_
#define TENSORFLOW_CORE_UTIL_ENV_VAR_H_

#include "tensorflow/core/platform/status.h"
#include "tensorflow/core/platform/stringpiece.h"
#include "tensorflow/core/platform/types.h"

namespace tensorflow {

// Returns a boolean into "value" from the environmental variable
// "env_var_name". If it is unset, the default value is used. A string "0" or a
// case insensitive "false" is interpreted as false. A string "1" or a case
// insensitive "true" is interpreted as true. Otherwise, an error status is
// returned.
Status ReadBoolFromEnvVar(StringPiece env_var_name, bool default_val,
                          bool* value);

// Returns an int64 into "value" from the environmental variable "env_var_name".
// If it is unset, the default value is used.
// If the string cannot be parsed into int64, an error status is returned.
Status ReadInt64FromEnvVar(StringPiece env_var_name, int64 default_val,
                           int64* value);
// Returns a float into "value" from the environmental variable "env_var_name".
// If it is unset, the default value is used.
// If the string cannot be parsed into float, an error status is returned.
Status ReadFloatFromEnvVar(StringPiece env_var_name, float default_val,
                           float* value);

// Returns a string into "value" from the environmental variable "env_var_name".
// If it is unset, the default value is used.
Status ReadStringFromEnvVar(StringPiece env_var_name, StringPiece default_val,
                            string* value);

}  // namespace tensorflow

#endif  // TENSORFLOW_CORE_UTIL_ENV_VAR_H_