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| <h3 class="section">15.3 Type and Range Checking</h3> |
| |
| <blockquote> |
| <em>Warning:</em> In this release, the <span class="sc">gdb</span> commands for type and range |
| checking are included, but they do not yet have any effect. This |
| section documents the intended facilities. |
| </blockquote> |
| <!-- FIXME remove warning when type/range code added --> |
| |
| <p>Some languages are designed to guard you against making seemingly common |
| errors through a series of compile- and run-time checks. These include |
| checking the type of arguments to functions and operators, and making |
| sure mathematical overflows are caught at run time. Checks such as |
| these help to ensure a program's correctness once it has been compiled |
| by eliminating type mismatches, and providing active checks for range |
| errors when your program is running. |
| |
| <p><span class="sc">gdb</span> can check for conditions like the above if you wish. |
| Although <span class="sc">gdb</span> does not check the statements in your program, |
| it can check expressions entered directly into <span class="sc">gdb</span> for |
| evaluation via the <code>print</code> command, for example. As with the |
| working language, <span class="sc">gdb</span> can also decide whether or not to check |
| automatically based on your program's source language. |
| See <a href="Supported-Languages.html#Supported-Languages">Supported Languages</a>, for the default |
| settings of supported languages. |
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| <ul class="menu"> |
| <li><a accesskey="1" href="Type-Checking.html#Type-Checking">Type Checking</a>: An overview of type checking |
| <li><a accesskey="2" href="Range-Checking.html#Range-Checking">Range Checking</a>: An overview of range checking |
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