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</style><title>Module hash from libxml2</title></head><body bgcolor="#8b7765" text="#000000" link="#a06060" vlink="#000000">| <center>API Menu</center> | | <form action="../search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="20" value="" /><input name="submit" type="submit" value="Search ..." /></form> |
| <center>API Indexes</center> | |
| <center>Related links</center> | |
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| This module implements the hash table support used in various places in the library. Table of Contents#define XML_CAST_FPTR Structure xmlHashTable
struct _xmlHashTable |
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The content of this structure is not made public by the API.
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Typedef xmlHashTable * xmlHashTablePtr
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int xmlHashAddEntry (xmlHashTablePtr table,
const xmlChar * name,
void * userdata)
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int xmlHashAddEntry2 (xmlHashTablePtr table,
const xmlChar * name,
const xmlChar * name2,
void * userdata)
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int xmlHashAddEntry3 (xmlHashTablePtr table,
const xmlChar * name,
const xmlChar * name2,
const xmlChar * name3,
void * userdata)
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Function type: xmlHashCopier
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void * xmlHashCopier (void * payload,
xmlChar * name)
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xmlHashTablePtr xmlHashCopy (xmlHashTablePtr table,
xmlHashCopier f)
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xmlHashTablePtr xmlHashCreate (int size)
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xmlHashTablePtr xmlHashCreateDict (int size,
xmlDictPtr dict)
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Function type: xmlHashDeallocator
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void xmlHashDeallocator (void * payload,
xmlChar * name)
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void xmlHashFree (xmlHashTablePtr table,
xmlHashDeallocator f)
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void * xmlHashLookup (xmlHashTablePtr table,
const xmlChar * name)
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void * xmlHashLookup2 (xmlHashTablePtr table,
const xmlChar * name,
const xmlChar * name2)
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void * xmlHashLookup3 (xmlHashTablePtr table,
const xmlChar * name,
const xmlChar * name2,
const xmlChar * name3)
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void * xmlHashQLookup (xmlHashTablePtr table,
const xmlChar * prefix,
const xmlChar * name)
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void * xmlHashQLookup2 (xmlHashTablePtr table,
const xmlChar * prefix,
const xmlChar * name,
const xmlChar * prefix2,
const xmlChar * name2)
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void * xmlHashQLookup3 (xmlHashTablePtr table,
const xmlChar * prefix,
const xmlChar * name,
const xmlChar * prefix2,
const xmlChar * name2,
const xmlChar * prefix3,
const xmlChar * name3)
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int xmlHashRemoveEntry (xmlHashTablePtr table,
const xmlChar * name,
xmlHashDeallocator f)
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int xmlHashRemoveEntry2 (xmlHashTablePtr table,
const xmlChar * name,
const xmlChar * name2,
xmlHashDeallocator f)
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int xmlHashRemoveEntry3 (xmlHashTablePtr table,
const xmlChar * name,
const xmlChar * name2,
const xmlChar * name3,
xmlHashDeallocator f)
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void xmlHashScan (xmlHashTablePtr table,
xmlHashScanner f,
void * data)
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void xmlHashScan3 (xmlHashTablePtr table,
const xmlChar * name,
const xmlChar * name2,
const xmlChar * name3,
xmlHashScanner f,
void * data)
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void xmlHashScanFull (xmlHashTablePtr table,
xmlHashScannerFull f,
void * data)
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void xmlHashScanFull3 (xmlHashTablePtr table,
const xmlChar * name,
const xmlChar * name2,
const xmlChar * name3,
xmlHashScannerFull f,
void * data)
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Function type: xmlHashScanner
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void xmlHashScanner (void * payload,
void * data,
xmlChar * name)
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Function type: xmlHashScannerFull
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void xmlHashScannerFull (void * payload,
void * data,
const xmlChar * name,
const xmlChar * name2,
const xmlChar * name3)
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int xmlHashSize (xmlHashTablePtr table)
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int xmlHashUpdateEntry (xmlHashTablePtr table,
const xmlChar * name,
void * userdata,
xmlHashDeallocator f)
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int xmlHashUpdateEntry2 (xmlHashTablePtr table,
const xmlChar * name,
const xmlChar * name2,
void * userdata,
xmlHashDeallocator f)
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int xmlHashUpdateEntry3 (xmlHashTablePtr table,
const xmlChar * name,
const xmlChar * name2,
const xmlChar * name3,
void * userdata,
xmlHashDeallocator f)
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Description
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Macro: XML_CAST_FPTR#define XML_CAST_FPTR Macro to do a casting from an object pointer to a function pointer without encountering a warning from gcc #define XML_CAST_FPTR(fptr) (*(void **)(&fptr)) This macro violated ISO C aliasing rules (gcc4 on s390 broke) so it is disabled now
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Structure xmlHashTable
struct _xmlHashTable {
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The content of this structure is not made public by the API.
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}Function: xmlHashAddEntryint xmlHashAddEntry (xmlHashTablePtr table,
const xmlChar * name,
void * userdata)
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Add the @userdata to the hash @table. This can later be retrieved by using the @name. Duplicate names generate errors.
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| <tt>table</tt>: | the hash table | | <tt>name</tt>: | the name of the userdata | | <tt>userdata</tt>: | a pointer to the userdata | | <tt>Returns</tt>: | 0 the addition succeeded and -1 in case of error. |
Function: xmlHashAddEntry2int xmlHashAddEntry2 (xmlHashTablePtr table,
const xmlChar * name,
const xmlChar * name2,
void * userdata)
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Add the @userdata to the hash @table. This can later be retrieved by using the (@name, @name2) tuple. Duplicate tuples generate errors.
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| <tt>table</tt>: | the hash table | | <tt>name</tt>: | the name of the userdata | | <tt>name2</tt>: | a second name of the userdata | | <tt>userdata</tt>: | a pointer to the userdata | | <tt>Returns</tt>: | 0 the addition succeeded and -1 in case of error. |
Function: xmlHashAddEntry3int xmlHashAddEntry3 (xmlHashTablePtr table,
const xmlChar * name,
const xmlChar * name2,
const xmlChar * name3,
void * userdata)
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Add the @userdata to the hash @table. This can later be retrieved by using the tuple (@name, @name2, @name3). Duplicate entries generate errors.
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| <tt>table</tt>: | the hash table | | <tt>name</tt>: | the name of the userdata | | <tt>name2</tt>: | a second name of the userdata | | <tt>name3</tt>: | a third name of the userdata | | <tt>userdata</tt>: | a pointer to the userdata | | <tt>Returns</tt>: | 0 the addition succeeded and -1 in case of error. |
Function type: xmlHashCopierFunction type: xmlHashCopier
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void * xmlHashCopier (void * payload,
xmlChar * name)
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Callback to copy data from a hash. | <tt>payload</tt>: | the data in the hash | | <tt>name</tt>: | the name associated | | <tt>Returns</tt>: | a copy of the data or NULL in case of error. |
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Function: xmlHashCopyxmlHashTablePtr xmlHashCopy (xmlHashTablePtr table,
xmlHashCopier f)
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Scan the hash @table and applied @f to each value.
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| <tt>table</tt>: | the hash table | | <tt>f</tt>: | the copier function for items in the hash | | <tt>Returns</tt>: | the new table or NULL in case of error. |
Function: xmlHashCreatexmlHashTablePtr xmlHashCreate (int size)
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Create a new xmlHashTablePtr.
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| <tt>size</tt>: | the size of the hash table | | <tt>Returns</tt>: | the newly created object, or NULL if an error occurred. |
Function: xmlHashCreateDictxmlHashTablePtr xmlHashCreateDict (int size,
xmlDictPtr dict)
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Create a new xmlHashTablePtr which will use @dict as the internal dictionary
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| <tt>size</tt>: | the size of the hash table | | <tt>dict</tt>: | a dictionary to use for the hash | | <tt>Returns</tt>: | the newly created object, or NULL if an error occurred. |
Function type: xmlHashDeallocatorFunction type: xmlHashDeallocator
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void xmlHashDeallocator (void * payload,
xmlChar * name)
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Callback to free data from a hash. | <tt>payload</tt>: | the data in the hash | | <tt>name</tt>: | the name associated |
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Function: xmlHashFreevoid xmlHashFree (xmlHashTablePtr table,
xmlHashDeallocator f)
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Free the hash @table and its contents. The userdata is deallocated with @f if provided.
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| <tt>table</tt>: | the hash table | | <tt>f</tt>: | the deallocator function for items in the hash |
Function: xmlHashLookupvoid * xmlHashLookup (xmlHashTablePtr table,
const xmlChar * name)
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Find the userdata specified by the @name.
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| <tt>table</tt>: | the hash table | | <tt>name</tt>: | the name of the userdata | | <tt>Returns</tt>: | the pointer to the userdata |
Function: xmlHashLookup2void * xmlHashLookup2 (xmlHashTablePtr table,
const xmlChar * name,
const xmlChar * name2)
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Find the userdata specified by the (@name, @name2) tuple.
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| <tt>table</tt>: | the hash table | | <tt>name</tt>: | the name of the userdata | | <tt>name2</tt>: | a second name of the userdata | | <tt>Returns</tt>: | the pointer to the userdata |
Function: xmlHashLookup3void * xmlHashLookup3 (xmlHashTablePtr table,
const xmlChar * name,
const xmlChar * name2,
const xmlChar * name3)
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Find the userdata specified by the (@name, @name2, @name3) tuple.
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| <tt>table</tt>: | the hash table | | <tt>name</tt>: | the name of the userdata | | <tt>name2</tt>: | a second name of the userdata | | <tt>name3</tt>: | a third name of the userdata | | <tt>Returns</tt>: | the a pointer to the userdata |
Function: xmlHashQLookupvoid * xmlHashQLookup (xmlHashTablePtr table,
const xmlChar * prefix,
const xmlChar * name)
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Find the userdata specified by the QName @prefix:@name/@name.
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| <tt>table</tt>: | the hash table | | <tt>prefix</tt>: | the prefix of the userdata | | <tt>name</tt>: | the name of the userdata | | <tt>Returns</tt>: | the pointer to the userdata |
Function: xmlHashQLookup2void * xmlHashQLookup2 (xmlHashTablePtr table,
const xmlChar * prefix,
const xmlChar * name,
const xmlChar * prefix2,
const xmlChar * name2)
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Find the userdata specified by the QNames tuple
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| <tt>table</tt>: | the hash table | | <tt>prefix</tt>: | the prefix of the userdata | | <tt>name</tt>: | the name of the userdata | | <tt>prefix2</tt>: | the second prefix of the userdata | | <tt>name2</tt>: | a second name of the userdata | | <tt>Returns</tt>: | the pointer to the userdata |
Function: xmlHashQLookup3void * xmlHashQLookup3 (xmlHashTablePtr table,
const xmlChar * prefix,
const xmlChar * name,
const xmlChar * prefix2,
const xmlChar * name2,
const xmlChar * prefix3,
const xmlChar * name3)
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Find the userdata specified by the (@name, @name2, @name3) tuple.
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| <tt>table</tt>: | the hash table | | <tt>prefix</tt>: | the prefix of the userdata | | <tt>name</tt>: | the name of the userdata | | <tt>prefix2</tt>: | the second prefix of the userdata | | <tt>name2</tt>: | a second name of the userdata | | <tt>prefix3</tt>: | the third prefix of the userdata | | <tt>name3</tt>: | a third name of the userdata | | <tt>Returns</tt>: | the a pointer to the userdata |
Function: xmlHashRemoveEntryint xmlHashRemoveEntry (xmlHashTablePtr table,
const xmlChar * name,
xmlHashDeallocator f)
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Find the userdata specified by the @name and remove it from the hash @table. Existing userdata for this tuple will be removed and freed with @f.
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| <tt>table</tt>: | the hash table | | <tt>name</tt>: | the name of the userdata | | <tt>f</tt>: | the deallocator function for removed item (if any) | | <tt>Returns</tt>: | 0 if the removal succeeded and -1 in case of error or not found. |
Function: xmlHashRemoveEntry2int xmlHashRemoveEntry2 (xmlHashTablePtr table,
const xmlChar * name,
const xmlChar * name2,
xmlHashDeallocator f)
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Find the userdata specified by the (@name, @name2) tuple and remove it from the hash @table. Existing userdata for this tuple will be removed and freed with @f.
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| <tt>table</tt>: | the hash table | | <tt>name</tt>: | the name of the userdata | | <tt>name2</tt>: | a second name of the userdata | | <tt>f</tt>: | the deallocator function for removed item (if any) | | <tt>Returns</tt>: | 0 if the removal succeeded and -1 in case of error or not found. |
Function: xmlHashRemoveEntry3int xmlHashRemoveEntry3 (xmlHashTablePtr table,
const xmlChar * name,
const xmlChar * name2,
const xmlChar * name3,
xmlHashDeallocator f)
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Find the userdata specified by the (@name, @name2, @name3) tuple and remove it from the hash @table. Existing userdata for this tuple will be removed and freed with @f.
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| <tt>table</tt>: | the hash table | | <tt>name</tt>: | the name of the userdata | | <tt>name2</tt>: | a second name of the userdata | | <tt>name3</tt>: | a third name of the userdata | | <tt>f</tt>: | the deallocator function for removed item (if any) | | <tt>Returns</tt>: | 0 if the removal succeeded and -1 in case of error or not found. |
Function: xmlHashScanvoid xmlHashScan (xmlHashTablePtr table,
xmlHashScanner f,
void * data)
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Scan the hash @table and applied @f to each value.
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| <tt>table</tt>: | the hash table | | <tt>f</tt>: | the scanner function for items in the hash | | <tt>data</tt>: | extra data passed to f |
Function: xmlHashScan3void xmlHashScan3 (xmlHashTablePtr table,
const xmlChar * name,
const xmlChar * name2,
const xmlChar * name3,
xmlHashScanner f,
void * data)
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Scan the hash @table and applied @f to each value matching (@name, @name2, @name3) tuple. If one of the names is null, the comparison is considered to match.
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| <tt>table</tt>: | the hash table | | <tt>name</tt>: | the name of the userdata or NULL | | <tt>name2</tt>: | a second name of the userdata or NULL | | <tt>name3</tt>: | a third name of the userdata or NULL | | <tt>f</tt>: | the scanner function for items in the hash | | <tt>data</tt>: | extra data passed to f |
Function: xmlHashScanFullvoid xmlHashScanFull (xmlHashTablePtr table,
xmlHashScannerFull f,
void * data)
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Scan the hash @table and applied @f to each value.
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| <tt>table</tt>: | the hash table | | <tt>f</tt>: | the scanner function for items in the hash | | <tt>data</tt>: | extra data passed to f |
Function: xmlHashScanFull3void xmlHashScanFull3 (xmlHashTablePtr table,
const xmlChar * name,
const xmlChar * name2,
const xmlChar * name3,
xmlHashScannerFull f,
void * data)
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Scan the hash @table and applied @f to each value matching (@name, @name2, @name3) tuple. If one of the names is null, the comparison is considered to match.
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| <tt>table</tt>: | the hash table | | <tt>name</tt>: | the name of the userdata or NULL | | <tt>name2</tt>: | a second name of the userdata or NULL | | <tt>name3</tt>: | a third name of the userdata or NULL | | <tt>f</tt>: | the scanner function for items in the hash | | <tt>data</tt>: | extra data passed to f |
Function type: xmlHashScannerFunction type: xmlHashScanner
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void xmlHashScanner (void * payload,
void * data,
xmlChar * name)
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Callback when scanning data in a hash with the simple scanner. | <tt>payload</tt>: | the data in the hash | | <tt>data</tt>: | extra scannner data | | <tt>name</tt>: | the name associated |
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Function type: xmlHashScannerFullFunction type: xmlHashScannerFull
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void xmlHashScannerFull (void * payload,
void * data,
const xmlChar * name,
const xmlChar * name2,
const xmlChar * name3)
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Callback when scanning data in a hash with the full scanner. | <tt>payload</tt>: | the data in the hash | | <tt>data</tt>: | extra scannner data | | <tt>name</tt>: | the name associated | | <tt>name2</tt>: | the second name associated | | <tt>name3</tt>: | the third name associated |
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Function: xmlHashSizeint xmlHashSize (xmlHashTablePtr table)
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Query the number of elements installed in the hash @table.
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| <tt>table</tt>: | the hash table | | <tt>Returns</tt>: | the number of elements in the hash table or -1 in case of error |
Function: xmlHashUpdateEntryint xmlHashUpdateEntry (xmlHashTablePtr table,
const xmlChar * name,
void * userdata,
xmlHashDeallocator f)
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Add the @userdata to the hash @table. This can later be retrieved by using the @name. Existing entry for this @name will be removed and freed with @f if found.
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| <tt>table</tt>: | the hash table | | <tt>name</tt>: | the name of the userdata | | <tt>userdata</tt>: | a pointer to the userdata | | <tt>f</tt>: | the deallocator function for replaced item (if any) | | <tt>Returns</tt>: | 0 the addition succeeded and -1 in case of error. |
Function: xmlHashUpdateEntry2int xmlHashUpdateEntry2 (xmlHashTablePtr table,
const xmlChar * name,
const xmlChar * name2,
void * userdata,
xmlHashDeallocator f)
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Add the @userdata to the hash @table. This can later be retrieved by using the (@name, @name2) tuple. Existing entry for this tuple will be removed and freed with @f if found.
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| <tt>table</tt>: | the hash table | | <tt>name</tt>: | the name of the userdata | | <tt>name2</tt>: | a second name of the userdata | | <tt>userdata</tt>: | a pointer to the userdata | | <tt>f</tt>: | the deallocator function for replaced item (if any) | | <tt>Returns</tt>: | 0 the addition succeeded and -1 in case of error. |
Function: xmlHashUpdateEntry3int xmlHashUpdateEntry3 (xmlHashTablePtr table,
const xmlChar * name,
const xmlChar * name2,
const xmlChar * name3,
void * userdata,
xmlHashDeallocator f)
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Add the @userdata to the hash @table. This can later be retrieved by using the tuple (@name, @name2, @name3). Existing entry for this tuple will be removed and freed with @f if found.
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| <tt>table</tt>: | the hash table | | <tt>name</tt>: | the name of the userdata | | <tt>name2</tt>: | a second name of the userdata | | <tt>name3</tt>: | a third name of the userdata | | <tt>userdata</tt>: | a pointer to the userdata | | <tt>f</tt>: | the deallocator function for replaced item (if any) | | <tt>Returns</tt>: | 0 the addition succeeded and -1 in case of error. |
Daniel Veillard </body></html>
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