Primitive Types
One thing that might be surprising about Storm is that primitive types are not treated specially by the system. Rather, they are implemented as any other type in the standard library. As far as Storm is concerned, the primitive types in the standard library are just opaque types with a set of operations that manipulate the opaque representation. That is, these types have no members, and therefore need to be manipulated through the members in the type. The only thing that is special about the primitive types is that they are treated specially during function calls (to follow the system's calling convention, to allow seamless calls to and from C++).
The standard library provides the following primitive types:

core.Bool
A type that may contain one of the values
true
andfalse
. 
core.Byte
An 8bit unsigned integer.

core.Int
A 32bit signed integer.

core.Nat
A 32bit unsigned integer.
Nat
is short for "natural number". 
core.Long
A 64bit signed integer.

core.Word
A 64bit unsigned integer.

core.Float
A 32bit floating point number.

core.Double
A 64bit floating point number.
All types have members that implement the expected comparison and arithmetic operators. The unsigned
types also provide bitwise operations as operators. Types are converted between each other using
members in the types. For example, the numeric types contain a member int
that converts them to an
integer.
The system also provides the following operations in addition to regular operators:

min(x, y)
,max(x, y)
 minimum and maximum values 
sqrt(x)
 square root of floating point types 
pow(base, exp)
 exponential of floating point types 
abs(x)
 absolute value 
clamp(value, min, max)
 limit a value to a range