1997-10-15 15:58:53 -04:00
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Nana provides improved support for assertion checking and logging in C, C++
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using GDB. In particular it provides:
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o Operations can be implemented directly in C or by generating
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debugger commands which do the checking and logging only if the
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application is run under the debugger. The debugger based calls
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require are very space efficient (0 or 1 bytes per call).
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o Support for checking real time constraints.
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o Support for assertion (invariant checking) including:
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+ Space and time efficient (at least versus <assert.h>)
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For example: assert(i>=0) uses 53 bytes on a i386 vs
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an optimised nana call which uses 10 bytes per call.
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+ Checking can be turned on or off at compile or run time.
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+ The action taken when an error is detected can be modified
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on a global and per/call basis.
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o Support for logging (printf style debugging) including:
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+ Logging can be turned on and off at compile or run time.
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+ Logging to files, processes or circular buffers in memory
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with optional time stamping.
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o Support for the quantifiers of predicate calculus (forall, exists).
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o Support for before and after state saving and checking (x, x').
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1999-06-10 04:05:28 -04:00
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Phil Maker <pjm@gnu.org>
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