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63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
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/* Copyright 2009, UCAR/Unidata and OPeNDAP, Inc.
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See the COPYRIGHT file for more information. */
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#ifndef LIST_H
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#define LIST_H 1
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/* Define the type of the elements in the list*/
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#if defined(_CPLUSPLUS_) || defined(__CPLUSPLUS__)
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#define EXTERNC extern "C"
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#else
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#define EXTERNC extern
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#endif
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EXTERNC int listnull(void*);
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typedef struct List {
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unsigned long alloc;
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unsigned long length;
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void** content;
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} List;
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EXTERNC List* listnew(void);
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EXTERNC int listfree(List*);
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EXTERNC int listsetalloc(List*,unsigned long);
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EXTERNC int listsetlength(List*,unsigned long);
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/* Set the ith element */
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EXTERNC int listset(List*,unsigned long,void*);
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/* Get value at position i */
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EXTERNC void* listget(List*,unsigned long);/* Return the ith element of l */
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/* Insert at position i; will push up elements i..|seq|. */
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EXTERNC int listinsert(List*,unsigned long,void*);
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/* Remove element at position i; will move higher elements down */
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EXTERNC void* listremove(List* l, unsigned long i);
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/* Tail operations */
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EXTERNC int listpush(List*,void*); /* Add at Tail */
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EXTERNC void* listpop(List*);
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EXTERNC void* listtop(List*);
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/* Duplicate and return the content (null terminate) */
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EXTERNC void** listdup(List*);
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/* Look for value match */
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EXTERNC int listcontains(List*, void*);
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/* Remove element by value; only removes first encountered */
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EXTERNC int listelemremove(List* l, void* elem);
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/* remove duplicates */
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EXTERNC int listunique(List*);
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/* Create a clone of a list */
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EXTERNC List* listclone(List*);
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/* Following are always "in-lined"*/
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#define listclear(l) listsetlength((l),0)
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#define listextend(l,len) listsetalloc((l),(len)+(l->alloc))
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#define listcontents(l) ((l)==NULL?NULL:(l)->content)
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#define listlength(l) ((l)==NULL?0:(int)(l)->length)
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#endif /*LIST_H*/
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