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Make the option -s easier to use.

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Bruno Haible
2003-03-10 15:01:00 +00:00
parent 9492f0dad7
commit 6ba5486229
7 changed files with 70 additions and 25 deletions
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17
doc/gperf.texi
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@@ -1074,16 +1074,13 @@ table.
Affects the size of the generated hash table. The numeric argument for
this option indicates ``how many times larger or smaller'' the maximum
associated value range should be, in relationship to the number of keywords.
If the @var{size-multiple} is negative the maximum associated value is
calculated by @emph{dividing} the number of keywords by it. For
example, a value of 3 means ``allow the maximum associated value to be
about 3 times larger than the number of input keywords''.
Conversely, a value of -3 means ``allow the maximum associated value to
be about 3 times smaller than the number of input keywords''. Negative
values are useful for limiting the overall size of the generated hash
table, though this usually increases the number of duplicate hash
values.
It can be written as an integer, a floating-point number or a fraction.
For example, a value of 3 means ``allow the maximum associated value to be
about 3 times larger than the number of input keywords''.
Conversely, a value of 1/3 means ``allow the maximum associated value to
be about 3 times smaller than the number of input keywords''. Values
smaller than 1 are useful for limiting the overall size of the generated hash
table, though the option @samp{-m} is better at this purpose.
If `generate switch' option @samp{-S} (or, equivalently, @samp{%switch}) is
@emph{not} enabled, the maximum