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| <h3 class="section">A.5 Data Type Measurements</h3> |
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| <p>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 <samp><span class="file">limits.h</span></samp> and <samp><span class="file">float.h</span></samp> contain macros |
| which give you this information in full detail. |
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| <ul class="menu"> |
| <li><a accesskey="1" href="Width-of-Type.html#Width-of-Type">Width of Type</a>: How many bits does an integer type hold? |
| <li><a accesskey="2" href="Range-of-Type.html#Range-of-Type">Range of Type</a>: What are the largest and smallest values |
| that an integer type can hold? |
| <li><a accesskey="3" href="Floating-Type-Macros.html#Floating-Type-Macros">Floating Type Macros</a>: Parameters that measure the floating point types. |
| <li><a accesskey="4" href="Structure-Measurement.html#Structure-Measurement">Structure Measurement</a>: Getting measurements on structure types. |
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