platform.h
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1 /*
2  * Copyright (C) 2010, Willow Garage, Inc.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are met:
6  * * Redistributions of source code must retain the above copyright notice,
7  * this list of conditions and the following disclaimer.
8  * * Redistributions in binary form must reproduce the above copyright
9  * notice, this list of conditions and the following disclaimer in the
10  * documentation and/or other materials provided with the distribution.
11  * * Neither the names of Willow Garage, Inc. nor the names of its
12  * contributors may be used to endorse or promote products derived from
13  * this software without specific prior written permission.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
19  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25  * POSSIBILITY OF SUCH DAMAGE.
26  */
27 /*
28  * Some common cross platform utilities.
29  */
30 #ifndef CPP_COMMON_PLATFORM_H_
31 #define CPP_COMMON_PLATFORM_H_
32 
33 /******************************************************************************
34 * Cross Platform Functions
35 ******************************************************************************/
36 
37 #include <stdlib.h> // getenv, _dupenv_s
38 #include <string>
39 
40 namespace ros {
41 
46 inline bool get_environment_variable(std::string &str, const char* environment_variable) {
47  char* env_var_cstr = NULL;
48  #ifdef _MSC_VER
49  _dupenv_s(&env_var_cstr, NULL,environment_variable);
50  #else
51  env_var_cstr = getenv(environment_variable);
52  #endif
53  if ( env_var_cstr ) {
54  str = std::string(env_var_cstr);
55  #ifdef _MSC_VER
56  free(env_var_cstr);
57  #endif
58  return true;
59  } else {
60  str = std::string("");
61  return false;
62  }
63 }
64 
65 } // namespace ros
66 
67 #endif /* CPP_COMMON_PLATFORM_H_ */
bool get_environment_variable(std::string &str, const char *environment_variable)
Definition: platform.h:46
Definition: datatypes.h:40


cpp_common
Author(s): John Faust
autogenerated on Sat Apr 6 2019 02:48:58