A.18.1 The Package Containers
The package Containers is the root of the containers
The library package
Containers has the following declaration:
Hash_Type is mod implementation-defined
Count_Type is range
0 .. implementation-defined
Capacity_Error : exception
Hash_Type represents the range of the result of a
hash function. Count_Type represents the (potential or actual) number
of elements of a container.
Capacity_Error is raised when the capacity of a
container is exceeded.
Hash_Type'Modulus should be at least 2**32. Count_Type'Last
should be at least 2**31–1.
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