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-rw-r--r--contrib/epee/include/misc_language.h10
1 files changed, 9 insertions, 1 deletions
diff --git a/contrib/epee/include/misc_language.h b/contrib/epee/include/misc_language.h
index 5f7202150..a04c63231 100644
--- a/contrib/epee/include/misc_language.h
+++ b/contrib/epee/include/misc_language.h
@@ -106,6 +106,14 @@ namespace misc_utils
return true;
}
+ template <typename T>
+ T get_mid(const T &a, const T &b)
+ {
+ //returns the average of two numbers; overflow safe and works with at least all integral and floating point types
+ //(a+b)/2 = (a/2) + (b/2) + ((a - 2*(a/2)) + (b - 2*(b/2)))/2
+ return (a/2) + (b/2) + ((a - 2*(a/2)) + (b - 2*(b/2)))/2;
+ }
+
template<class type_vec_type>
type_vec_type median(std::vector<type_vec_type> &v)
{
@@ -122,7 +130,7 @@ namespace misc_utils
return v[n];
}else
{//2, 4, 6...
- return (v[n-1] + v[n])/2;
+ return get_mid<type_vec_type>(v[n-1],v[n]);
}
}