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When a value of a certain type is changed to
another type, a conversion occurs.
When a number of some type is converted to another type of number, if
the number can be represented in the latter type its value will be
unchanged. All possible characters can be represented as ints or
short ints, and all short ints can be represented as ints, so these
conversions yield unchanged values.
Technically, Epsilon will sign-extend a short int to convert it
to an int, but will pad a character with zero bits on the left to
convert it to an int or short int. Converting a number of
some type to a number of a shorter type is always done by dropping
A pointer may not be converted to an int, or vice versa, except
for function pointers. The latter may be converted to a short int, or
to any type that a short int may be converted to. A pointer to one
type may be converted to a pointer to another type, as long as
neither of them is a function pointer.
All operators that take numbers as operands will take any size
numbers (characters, short ints, or ints). The operands will
be converted to int if they aren't already ints. Operators that
yield numbers always produce ints.
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