Float calculation errors

in C#

float ratio = 185 / srcRect.Width;

where srcRect.Width = 400

returns 0 where it should return 0.45...

min value for float is -3.40282347E+38 so how is this possible?

From stackoverflow

• You are performing an integer division and hence 185/srcRect.Width will return 0. You will need to change the expression to

  float ratio = 185.0f / srcRect.Width;
  

  gimel : float ratio = 185.0 / srcRect.Width;

  plinth : gimel - that won't work as written - the RHS is type double, which can't be assigned to a float without a cast.

• 185 is an integer literal, and so the division performed is integer division.

  To perform a float division, use 185.0 or 185.0f instead (the former is a double, the latter is float)

• The "f" or "d" suffixes may be added to literal numbers to turn them into floats or doubles respectively.

  Like so:

  float ratio = 185f / srcRect.Width;
  

  note that "185.0" is actually a double unless it also has the "f" suffix.