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/* Copyright 2018, UCAR/Unidata and OPeNDAP, Inc.
See the COPYRIGHT file for more information. */
#ifndef NCLIST_H
#define NCLIST_H 1
/* Define the type of the elements in the list*/
#if defined(_CPLUSPLUS_) || defined(__CPLUSPLUS__)
extern "C" {
#endif
extern int nclistnull(void*);
typedef struct NClist {
size_t alloc;
size_t length;
void** content;
} NClist;
extern NClist* nclistnew(void);
extern int nclistfree(NClist*);
extern int nclistfreeall(NClist*);
extern int nclistsetalloc(NClist*,size_t);
extern int nclistsetlength(NClist*,size_t);
/* Set the ith element; will overwrite previous contents; expand if needed */
extern int nclistset(NClist*,size_t,void*);
/* Get value at position i */
extern void* nclistget(NClist*,size_t);/* Return the ith element of l */
/* Insert at position i; will push up elements i..|seq|. */
extern int nclistinsert(NClist*,size_t,void*);
/* Remove element at position i; will move higher elements down */
extern void* nclistremove(NClist* l, size_t i);
/* Tail operations */
extern int nclistpush(NClist*,void*); /* Add at Tail */
extern void* nclistpop(NClist*);
extern void* nclisttop(NClist*);
/* Duplicate and return the content (null terminate) */
extern void** nclistdup(NClist*);
/* Look for value match */
extern int nclistcontains(NClist*, void*);
/* Remove element by value; only removes first encountered */
extern int nclistelemremove(NClist* l, void* elem);
/* remove duplicates */
extern int nclistunique(NClist*);
/* Create a clone of a list */
extern NClist* nclistclone(NClist*);
extern void* nclistextract(NClist*);
/* Following are always "in-lined"*/
#define nclistclear(l) nclistsetlength((l),0)
#define nclistextend(l,len) nclistsetalloc((l),(len)+(l->alloc))
#define nclistcontents(l) ((l)==NULL?NULL:(l)->content)
#define nclistlength(l) ((l)==NULL?0:(l)->length)
#if defined(_CPLUSPLUS_) || defined(__CPLUSPLUS__)
}
#endif
#endif /*NCLIST_H*/
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