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(libc.info)Data Type Measurements

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Data Type Measurements
======================

   Most of the time, if you choose the proper C data type for each
object in your program, you need not be concerned with just how it is
represented or how many bits it uses.  When you do need such
information, the C language itself does not provide a way to get it.
The header files `limits.h' and `float.h' contain macros which give you
this information in full detail.

Width of Type

How many bits does an integer type hold?

Range of Type

What are the largest and smallest values

that an integer type can hold?

Floating Type Macros

Parameters that measure the floating point types.

Structure Measurement

Getting measurements on structure types.