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<title>pcre2_serialize_decode specification</title>
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<h1>pcre2_serialize_decode man page</h1>

Return to the <a href="index.html">PCRE2 index page</a>.


This page is part of the PCRE2 HTML documentation. It was generated
automatically from the original man page. If there is any nonsense in it,
please consult the man page, in case the conversion went wrong.
 
 
SYNOPSIS
 

#include &#60;pcre2.h&#62;


int32_t pcre2_serialize_decode(pcre2_code **codes,
 int32_t number_of_codes, const uint8_t *bytes,
 pcre2_general_context *gcontext);

 
DESCRIPTION
 

This function decodes a serialized set of compiled patterns back into a list of
individual patterns. This is possible only on a host that is running the same
version of PCRE2, with the same code unit width, and the host must also have
the same endianness, pointer width and PCRE2_SIZE type. The arguments for
pcre2_serialize_decode() are:
<pre>
 codes pointer to a vector in which to build the list
 number_of_codes number of slots in the vector
 bytes the serialized byte stream
 gcontext pointer to a general context or NULL
</pre>
The bytes argument must point to a block of data that was originally
created by pcre2_serialize_encode(), though it may have been saved on
disc or elsewhere in the meantime. If there are more codes in the serialized
data than slots in the list, only those compiled patterns that will fit are
decoded. The yield of the function is the number of decoded patterns, or one of
the following negative error codes:
<pre>
 PCRE2_ERROR_BADDATA number_of_codes is zero or less
 PCRE2_ERROR_BADMAGIC mismatch of id bytes in bytes
 PCRE2_ERROR_BADMODE mismatch of variable unit size or PCRE version
 PCRE2_ERROR_MEMORY memory allocation failed
 PCRE2_ERROR_NULL codes or bytes is NULL
</pre>
PCRE2_ERROR_BADMAGIC may mean that the data is corrupt, or that it was compiled
on a system with different endianness.


There is a complete description of the PCRE2 native API in the
<a href="pcre2api.html">pcre2api</a>
page and a description of the serialization functions in the
<a href="pcre2serialize.html">pcre2serialize</a>
page.

Return to the <a href="index.html">PCRE2 index page</a>.

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pcre2_serialize_decode.html	Edit
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