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2019-08-17 Jay Berkenbilt <ejb@ql.org>
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* Change internal implementation of QPDF arrays to use sparse
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arrays, which results in using much less memory for arrays with
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large numbers of nulls. Various files have been encountered in the
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wild that contains thousands of arrays with millions of nulls.
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Fixes #305, #311.
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2019-07-03 Jay Berkenbilt <ejb@ql.org>
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2019-07-03 Jay Berkenbilt <ejb@ql.org>
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* Non-compatible API change: change
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* Non-compatible API change: change
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7
TODO
7
TODO
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Performance
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===========
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There is some performance problem that happens with some large files.
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Issues 305 and 311 both seem to be examples of this. Files saved in
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../misc/bugs.
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Fuzz Errors
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Fuzz Errors
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===========
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===========
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@ -4480,6 +4480,14 @@ print "\n";
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<function>getUIntValueAsUInt</function>.
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<function>getUIntValueAsUInt</function>.
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</para>
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</para>
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</listitem>
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</listitem>
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<listitem>
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<para>
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The underlying implementation of QPDF arrays has been
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enhanced to be much more memory efficient when dealing with
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arrays with lots of nulls. This enables qpdf to use
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drastically less memory for certain types of files.
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</para>
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</listitem>
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<listitem>
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<listitem>
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<para>
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<para>
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A new helper method
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A new helper method
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