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Datatype widths

Be aware that in ANSI C the type int is only guaranteed to provide 16-bits. It may provide more, but is not guaranteed to. Therefore if you require 32 bits you must use long int, which will have 32 bits or more. Of course, on many platforms the type int does have 32 bits instead of 16 bits but we have to code to the ANSI standard rather than a specific platform.


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