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Added default_value() template to help with creating templates that need to initialize members that are floats etc.

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Robert Osfield
2016-06-22 11:26:11 +01:00
parent d5f18590fd
commit 67cc776696
1 changed files with 13 additions and 0 deletions
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13
include/osg/Math
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@@ -40,6 +40,19 @@ const float LN_2f = 0.69314718055994530942f;
const float INVLN_2f = 1.0f / LN_2f;
template<typename T>
inline T default_value() { return T(); }
template<> inline float default_value<float>() { return 0.0f; }
template<> inline double default_value<double>() { return 0.0; }
template<> inline char default_value<char>() { return 0; }
template<> inline unsigned char default_value<unsigned char>() { return 0; }
template<> inline short default_value<short>() { return 0; }
template<> inline unsigned short default_value<unsigned short>() { return 0; }
template<> inline int default_value<int>() { return 0; }
template<> inline unsigned int default_value<unsigned int>() { return 0; }
template<typename T>
inline T absolute(T v) { return v<(T)0?-v:v; }