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67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
/* Copyright 2009, UCAR/Unidata and OPeNDAP, Inc.
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See the COPYRIGHT file for more information. */
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#ifndef NCLIST_H
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#define NCLIST_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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typedef unsigned long ncelem;
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EXTERNC int nclistnull(ncelem);
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typedef struct NClist {
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unsigned int alloc;
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unsigned int length;
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ncelem* content;
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} NClist;
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EXTERNC NClist* nclistnew(void);
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EXTERNC int nclistfree(NClist*);
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EXTERNC int nclistsetalloc(NClist*,unsigned int);
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EXTERNC int nclistsetlength(NClist*,unsigned int);
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/* Set the ith element */
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EXTERNC int nclistset(NClist*,unsigned int,ncelem);
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/* Get value at position i */
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EXTERNC ncelem nclistget(NClist*,unsigned int);/* 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 nclistinsert(NClist*,unsigned int,ncelem);
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/* Remove element at position i; will move higher elements down */
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EXTERNC ncelem nclistremove(NClist* l, unsigned int i);
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/* Tail operations */
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EXTERNC int nclistpush(NClist*,ncelem); /* Add at Tail */
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EXTERNC ncelem nclistpop(NClist*);
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EXTERNC ncelem nclisttop(NClist*);
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/* Duplicate and return the content (null terminate) */
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EXTERNC ncelem* nclistdup(NClist*);
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/* Look for value match */
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EXTERNC int nclistcontains(NClist*, ncelem);
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/* Remove element by value; only removes first encountered */
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EXTERNC int nclistelemremove(NClist* l, ncelem elem);
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/* remove duplicates */
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EXTERNC int nclistunique(NClist*);
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/* Create a clone of a list */
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EXTERNC NClist* nclistclone(NClist*);
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/* Following are always "in-lined"*/
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#define nclistclear(l) nclistsetlength((l),0U)
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#define nclistextend(l,len) nclistsetalloc((l),(len)+(l->alloc))
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#define nclistcontents(l) ((l)->content)
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#define nclistlength(l) ((l)?(l)->length:0U)
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#endif /*NCLIST_H*/
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