(gdb.info)Summary


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Summary of GDB
**************

   The purpose of a debugger such as GDB is to allow you to see what is
going on "inside" another program while it executes--or what another
program was doing at the moment it crashed.

   GDB can do four main kinds of things (plus other things in support of
these) to help you catch bugs in the act:

   * Start your program, specifying anything that might affect its
     behavior.

   * Make your program stop on specified conditions.

   * Examine what has happened, when your program has stopped.

   * Change things in your program, so you can experiment with
     correcting the effects of one bug and go on to learn about another.

   You can use GDB to debug programs written in C or C++.  For more
information, see Note: C and C++.

   Support for Modula-2 and Chill is partial.  For information on
Modula-2, see Note: Modula-2.  There is no further
documentation on Chill yet.

   Debugging Pascal programs which use sets, subranges, file variables,
or nested functions does not currently work.  GDB does not support
entering expressions, printing values, or similar features using Pascal
syntax.  GDB can be used to debug programs written in Fortran, although
it does not yet support entering expressions, printing values, or
similar features using Fortran syntax.  It may be necessary to refer to
some variables with a trailing underscore.

* Free Software
Freely redistributable software
* Contributors
Contributors to GDB

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