Added CheckUniform for time vector

include/CF.h

@@ -33,7 +33,21 @@ class CF
   real step = data[1] - data[0];
 
   for(size_t i = 1; i < data.size() - 1; i++)
-   if(michlib::Abs(1.0 - (data[i + 1] - data[i]) / step) > tolerance) { return false; }
+   if(michlib::Abs(1.0 - (data[i + 1] - data[i]) / step) > tolerance) return false;
+  return true;
+ }
+
+ // Check, if vector time data lays on uniform grid
+ static bool CheckUniform(std::ranges::random_access_range auto&& data)
+ requires std::convertible_to<std::ranges::range_value_t<decltype(data)>, MDateTime>
+ {
+  if(data.size() < 2) return false;
+  if(data.size() == 2) return true;
+
+  auto step = data[1] - data[0];
+
+  for(size_t i = 1; i < data.size() - 1; i++)
+   if(data[i + 1] - data[i] != step) return false;
   return true;
  }