NAME 
compilers/imcc/sets.c
DESCRIPTION
An implementation of sets -- used for tracking register usage.
Functions
Set *set_make
Creates a new Set object.
Set *set_make_full
Creates a new Set object of void set_free
Frees the given Set and its allocated memory.
void set_clear
Clears all bits in the Set.
Set *set_copy
Copies the set int set_equal
Compares two sets for equality; sets are equal if they contain the same elements.Raises a fatal error if the two Sets have different lengths.
void set_add
Adds to set unsigned int set_first_zero
Sets the first unused item in the set.
int set_contains
Checks whether the specified element is present in the specified Set argument.
Returns 1 if it is,
0 otherwise.
Set *set_union
Computes the union of the two Set arguments,
returning it as a new Set.Raises a fatal error if the two Sets have different lengths.
Set *set_intersec
Creates a new Set object that is the intersection of the Set arguments (defined through the binary void set_intersec_inplace
Performs a set intersection in place -- the first Set argument changes to contain the result.
length items,
setting them all to full.
s,
returning a new set pointer.
s the element element.
and operator.)Raises a fatal error if the two Sets have different lengths.
