35#if defined(OSG_ENVVAR_SUPPORTED)
43inline unsigned int getClampedLength(
const char* str,
unsigned int maxNumChars=4096)
46 while(i<maxNumChars && str[i]!=0) { ++i; }
50inline std::string getEnvVar(
const char* name)
52#ifdef OSG_ENVVAR_SUPPORTED
54 const char* ptr = getenv(name);
55 if (ptr) value.assign(ptr, getClampedLength(ptr));
65inline bool getEnvVar(
const char* name, T& value)
67#ifdef OSG_ENVVAR_SUPPORTED
68 const char* ptr = getenv(name);
69 if (!ptr)
return false;
71 std::istringstream str(std::string(ptr, getClampedLength(ptr)));
81inline bool getEnvVar(
const char* name, std::string& value)
83#ifdef OSG_ENVVAR_SUPPORTED
84 const char* ptr = getenv(name);
85 if (!ptr)
return false;
87 value.assign(ptr, getClampedLength(ptr));
95template<
typename T1,
typename T2>
96inline bool getEnvVar(
const char* name, T1& value1, T2& value2)
98#ifdef OSG_ENVVAR_SUPPORTED
99 const char* ptr = getenv(name);
100 if (!ptr)
return false;
102 std::istringstream str(std::string(ptr, getClampedLength(ptr)));
103 str >> value1 >> value2;
111template<
typename T1,
typename T2,
typename T3>
112inline bool getEnvVar(
const char* name, T1& value1, T2& value2, T3& value3)
114#ifdef OSG_ENVVAR_SUPPORTED
115 const char* ptr = getenv(name);
116 if (!ptr)
return false;
118 std::istringstream str(std::string(ptr, getClampedLength(ptr)));
119 str >> value1 >> value2 >> value3;
127template<
typename T1,
typename T2,
typename T3,
typename T4>
128inline bool getEnvVar(
const char* name, T1& value1, T2& value2, T3& value3, T4& value4)
130#ifdef OSG_ENVVAR_SUPPORTED
131 const char* ptr = getenv(name);
132 if (!ptr)
return false;
134 std::istringstream str(std::string(ptr, getClampedLength(ptr)));
135 str >> value1 >> value2 >> value3 >> value4;
OSG_EXPORT int osg_system(const char *str)
Cross platform version of C system() function.
The core osg library provides the basic scene graph classes such as Nodes, State and Drawables,...
Definition AlphaFunc:19
#define OSG_UNUSED2(VAR1, VAR2)
Definition Export:61
#define OSG_UNUSED3(VAR1, VAR2, VAR3)
Definition Export:62
#define OSG_EXPORT
Definition Export:39
#define OSG_UNUSED4(VAR1, VAR2, VAR3, VAR4)
Definition Export:63
#define OSG_UNUSED5(VAR1, VAR2, VAR3, VAR4, VAR5)
Definition Export:64
#define OSG_UNUSED(VAR)
Definition Export:60