CODEWITHSUNDEEP
ctypesarchitecturesystemlimit
user10430594
user10430594

Reputation:

"The C standards set lower bounds on the numeric ranges of the different data types, but there are no upper bounds"?

While reading my textbook Computer systems by Randal E. Bryant & David R. O'Hallaron, I got a question on this:

The C standards set lower bounds on the numeric ranges of the different data types, but there are no upper bounds.

What does this mean?

Upvotes: 1

Views: 89

Answers (1)

Lundin
Lundin

Reputation: 215330

It means that the C standard for example says that an int should be at least large enough to hold the value -32767 to 32767, but it may be larger.

In the real world, 16 bit computers use -32768 to 32767 since they use 2's complement. While 32 bit computers use -2.14 to +2.14 billion.

Upvotes: 4

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