Abstract and System-Native Types of Integers and Floats: Int, Integer, Float, AbstractFloat

[stevengj]

@uniment

Int and UInt are aliases for the system’s native integer types such as Int64 and UInt64, but there’s no such thing for Float to refer to the system’s native float type such as Float64—why not?

This exact question seems to come up so often that maybe it should be in the FAQ:

• 2/2014: If (in my system) Int is an alias for Int32, then why there is no Float alias for Float32/64?
• 4/2013: typealias for Float
• 7/2014: Numerical types and machine word size
• 2/2015: Int and Float
• 4/2016: Int and Int64
• 2/2014: Julia default numeric types
• 12/2016: Float type like Int type
• 6/2017: Win32 bit versus Win64 bit Julia