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Ada Programming/Pragmas/Normalize Scalars
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Pragmas Normalize Scalars
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Summary
The pragma Normalize_Scalars directs the compiler to initialize otherwise uninitialized scalar variables with predictable values. If possible, the compiler will choose out-of-range values.
Example
Normalize_Scalars;
...
My_Variable : Positive; Oops, forgot to initialize this variable.
The compiler (may) initialize this to 0
...
Oops, using a variable before it is initialized!
An exception should be raised here, since the compiler
initialized the value to 0 - an out-of-range value for the Positive type.
Some_Other_Variable := My_Variable;
See also
Wikibook
Ada Programming
Ada Programming/Pragmas
Normalize Scalars