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 * Includes
35 ******************************************************************************/
36 
37 #ifdef WIN32
38  #ifdef _MSC_VER
39  #ifndef WIN32_LEAN_AND_MEAN
40  #define WIN32_LEAN_AND_MEAN // slimmer compile times
41  #endif // WIN32_LEAN_AND_MEAN
42  #define _WINSOCKAPI_ // stops windows.h from including winsock.h (and lets us include winsock2.h)
43  #ifndef NOMINMAX
44  #define NOMINMAX // windows c++ pollutes the environment like any factory
45  #endif // NOMINMAX
46  #endif
47  #include <windows.h>
48 #endif
49 
50 
51 
52 /******************************************************************************
53 * Cross Platform Functions
54 ******************************************************************************/
55 
56 #ifndef _MSC_VER
57  #include <stdlib.h> // getenv
58 #endif
59 #include <string>
60 
61 namespace rs2rosinternal {
62 
67 inline bool get_environment_variable(std::string &str, const char* environment_variable) {
68  char* env_var_cstr = NULL;
69  #ifdef _MSC_VER
70  _dupenv_s(&env_var_cstr, NULL,environment_variable);
71  #else
72  env_var_cstr = getenv(environment_variable);
73  #endif
74  if ( env_var_cstr ) {
75  str = std::string(env_var_cstr);
76  #ifdef _MSC_VER
77  free(env_var_cstr);
78  #endif
79  return true;
80  } else {
81  str = std::string("");
82  return false;
83  }
84 }
85 
86 } // namespace rs2rosinternal
87 
88 #endif /* CPP_COMMON_PLATFORM_H_ */
bool get_environment_variable(std::string &str, const char *environment_variable)
Definition: platform.h:67
GLsizei const GLchar *const * string
#define NULL
Definition: tinycthread.c:47


librealsense2
Author(s): Sergey Dorodnicov , Doron Hirshberg , Mark Horn , Reagan Lopez , Itay Carpis
autogenerated on Mon May 3 2021 02:47:39