string_array.h

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// Copyright 2017 Open Source Robotics Foundation, Inc.
//
// 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
//
//     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,
// 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 RCUTILS__TYPES__STRING_ARRAY_H_
#define RCUTILS__TYPES__STRING_ARRAY_H_
 
#ifdef __cplusplus
extern "C"
{
#endif
 
#include <string.h>
 
#include "rcutils/allocator.h"
#include "rcutils/error_handling.h"
#include "rcutils/macros.h"
#include "rcutils/qsort.h"
#include "rcutils/types/rcutils_ret.h"
#include "rcutils/visibility_control.h"
 
typedef struct RCUTILS_PUBLIC_TYPE rcutils_string_array_t
{
  size_t size;
  char ** data;
  rcutils_allocator_t allocator;
} rcutils_string_array_t;
 
 
RCUTILS_PUBLIC
rcutils_string_array_t
rcutils_get_zero_initialized_string_array(void);
 
 
RCUTILS_PUBLIC
RCUTILS_WARN_UNUSED
rcutils_ret_t
rcutils_string_array_init(
  rcutils_string_array_t * string_array,
  size_t size,
  const rcutils_allocator_t * allocator);
 
 
RCUTILS_PUBLIC
RCUTILS_WARN_UNUSED
rcutils_ret_t
rcutils_string_array_fini(rcutils_string_array_t * string_array);
 
 
RCUTILS_PUBLIC
RCUTILS_WARN_UNUSED
rcutils_ret_t
rcutils_string_array_cmp(
  const rcutils_string_array_t * lhs,
  const rcutils_string_array_t * rhs,
  int * res);
 
 
RCUTILS_PUBLIC
RCUTILS_WARN_UNUSED
rcutils_ret_t
rcutils_string_array_resize(
  rcutils_string_array_t * string_array,
  size_t new_size);
 
 
RCUTILS_PUBLIC
RCUTILS_WARN_UNUSED
int
rcutils_string_array_sort_compare(const void * lhs, const void * rhs);
 
 
inline
RCUTILS_WARN_UNUSED
rcutils_ret_t
rcutils_string_array_sort(rcutils_string_array_t * string_array)
{
  RCUTILS_CHECK_FOR_NULL_WITH_MSG(
    string_array, "string_array is null", return RCUTILS_RET_INVALID_ARGUMENT);
 
  return rcutils_qsort(
    string_array->data,
    string_array->size,
    sizeof(string_array->data[0]),
    rcutils_string_array_sort_compare);
}
 
#ifdef __cplusplus
}
#endif
 
#endif  // RCUTILS__TYPES__STRING_ARRAY_H_