| Geant4 Cross Reference |
1 // Copyright (C) 2010, Guy Barrand. All rights 1 // Copyright (C) 2010, Guy Barrand. All rights reserved.
2 // See the file tools.license for terms. 2 // See the file tools.license for terms.
3 3
4 #ifndef tools_get_env 4 #ifndef tools_get_env
5 #define tools_get_env 5 #define tools_get_env
6 6
7 #include <cstdlib> 7 #include <cstdlib>
8 8
9 #include "sto" 9 #include "sto"
10 10
11 namespace tools { 11 namespace tools {
12 12
13 inline bool is_env(const std::string& a_string 13 inline bool is_env(const std::string& a_string){
14 const char* env = ::getenv(a_string.c_str()) 14 const char* env = ::getenv(a_string.c_str());
15 return (env?true:false); 15 return (env?true:false);
16 } 16 }
17 17
18 inline bool get_env(const std::string& a_strin 18 inline bool get_env(const std::string& a_string,std::string& a_value){
19 const char* env = ::getenv(a_string.c_str()) 19 const char* env = ::getenv(a_string.c_str());
20 if(env) { 20 if(env) {
21 a_value = std::string(env?env:""); 21 a_value = std::string(env?env:"");
22 return true; 22 return true;
23 } else { 23 } else {
24 a_value.clear(); 24 a_value.clear();
25 return false; 25 return false;
26 } 26 }
27 } 27 }
28 28
29 template <class T> 29 template <class T>
30 inline bool get_env(const std::string& a_strin 30 inline bool get_env(const std::string& a_string,T& a_v,const T& a_def = T()){
31 std::string _s; << 31 std::string s;
32 if(!get_env(a_string,_s)) {a_v = a_def;retur << 32 if(!get_env(a_string,s)) {a_v = a_def;return false;}
33 return to<T>(_s,a_v,a_def); << 33 return to<T>(s,a_v,a_def);
34 } 34 }
35 35
36 inline bool get_env_bool(const std::string& a_ 36 inline bool get_env_bool(const std::string& a_string,bool& a_v){
37 std::string _s; << 37 std::string s;
38 if(!get_env(a_string,_s)) return false; << 38 if(!get_env(a_string,s)) return false;
39 return to(_s,a_v); << 39 return to(s,a_v);
40 } 40 }
41 41
42 } 42 }
43 43
44 #endif 44 #endif