example_dlist.c File Reference

Example of a librnr "derived" DListVoid doubly-linked lists. More...

#include <stdio.h>
#include <string.h>
#include "rnr/rnrconfig.h"
#include "rnr/new.h"
#include "example_dlist.h"

Go to the source code of this file.

Functions
static Zoo_T *	NewZooAnimal (const char *sSciName, const char *sPetName)
	Allocate new zoo addition. More...
int	main (int argc, char *argv[])
	Example main. More...

Variables
const char *	AnimalCatalog [][2]
	Animal catalog of the world. More...
static char *	FlatEarthZooDeal [][2]
	Zoo we will "buy". More...
static	Zid = 0
	zoo id

Detailed Description

Example of a librnr "derived" DListVoid doubly-linked lists.

LastChangedDate

2010-03-24 10:19:36 -0600 (Wed, 24 Mar 2010)

Rev

307

Author

Robin Knight (robin.nosp@m..kni.nosp@m.ght@r.nosp@m.oadn.nosp@m.arrow.nosp@m.s.co.nosp@m.m)

Copyright

© 2007-2018. RoadNarrows LLC..
http://www.roadnarrows.com
All Rights Reserved

Definition in file example_dlist.c.

Function Documentation

int main	(	int	argc,
		char *	argv[]
	)

Example main.

Parameters

argc	Command-line argument count.
argv	Command-line argument list.

Exit Status:

Program exits with 0 success, > 0 on failure.

Definition at line 129 of file example_dlist.c.

References DListZooDataCmp(), DListZooDataDelete(), DListZooDataPrint(), FlatEarthZooDeal, Zoo_T::m_sPetName, NewZooAnimal(), and NULL.

{
  DListZoo_T     *pMyZoo;
  Zoo_T          *pMyAni;
  Zoo_T           zooMatch;
  DListZooIter_T  zooIter;
  int             i;

  // buy empty zoo
  pMyZoo = DListZooNew(DListZooDataCmp, DListZooDataDelete);

  printf("I bought an empty zoo.\n");
  DListZooPrint(pMyZoo, DListZooDataPrint, stdout);
  
  // purchase animals from zoo in FlatEarth, NE.
  for(i=0; FlatEarthZooDeal[i][0]!=NULL; ++i)
  {
    pMyAni = NewZooAnimal(FlatEarthZooDeal[i][1], FlatEarthZooDeal[i][0]);
    DListZooAppend(pMyZoo, pMyAni);
  }
  
  printf("\nI bought some animals from the zoo in Flat Earth, NE.\n");
  DListZooPrint(pMyZoo, DListZooDataPrint, stdout);

  // Fluffy dies
  zooMatch.m_sPetName = "Fluffy";
  DListZooDeleteNode(pMyZoo, DListZooFindNode(pMyZoo, &zooMatch));

  printf("\nAlas, Fluffy died.\n");
  DListZooPrint(pMyZoo, DListZooDataPrint, stdout);
  
  // purchase "eMouse" from kid down the block.
  pMyAni = NewZooAnimal("elephas maximus", "eMouse");
  DListZooPrepend(pMyZoo, pMyAni);

  printf("\nBut I got a new primo 'phant from the kid down the block.\n");
  DListZooPrint(pMyZoo, DListZooDataPrint, stdout);
  
  // give vitamin shots to the beasts
  printf("\nTime to give my menagerie their yearly vitamin shots.\n");
  for(pMyAni=DListZooIterDataFirst(pMyZoo, &zooIter);
      pMyAni!=NULL;
      pMyAni=DListZooIterDataNext(&zooIter))
  {
    printf("  injected %s\n", pMyAni->m_sPetName);
  }

  // intelligent procreation
  pMyAni = NewZooAnimal("lasiorhinus latifrons", "wittlewomby1");
  DListZooInsert(pMyZoo, 4, pMyAni);
  pMyAni = NewZooAnimal("lasiorhinus latifrons", "wittlewomby2");
  DListZooInsert(pMyZoo, 4, pMyAni);

  printf("\nI guess \"The Prez\" wasn't male. "
         "Pass out the bubble gum cigars!\n");
  DListZooPrint(pMyZoo, DListZooDataPrint, stdout);

  // let my animals go free
  DListZooDeleteAllNodes(pMyZoo);

  printf("\nI decided to let my animals go free - in Alaska.\n");
  DListZooPrint(pMyZoo, DListZooDataPrint, stdout);

  DListZooDelete(pMyZoo);

  printf("\nGoodbye.\n");

  return 0;
}

static Zoo_T* NewZooAnimal ( const char *  sSciName, const char *  sPetName  )

static

Allocate new zoo addition.

Parameters

sSciName	Scientific name.
sPetName	Pet name.

Returns

New zoo node.

Definition at line 90 of file example_dlist.c.

References AnimalCatalog, Zoo_T::m_nZid, Zoo_T::m_sComName, Zoo_T::m_sPetName, Zoo_T::m_sSciName, NEW, new_strdup(), NULL, and Zid.

Referenced by main().

{
  const char  **sCat;
  Zoo_T       *pZooAni;

  pZooAni             = NEW(Zoo_T);
  pZooAni->m_nZid     = Zid++;
  pZooAni->m_sPetName = new_strdup(sPetName);

  sCat = AnimalCatalog[0];

  // find animal species in catalog
  for(sCat=AnimalCatalog[0]; sCat[0]!=NULL; sCat++)
  {
    if( !strcmp(sCat[0], sSciName) )
    {
      // assign type
      pZooAni->m_sSciName = sCat[0];
      pZooAni->m_sComName = sCat[1];
      return pZooAni;
    }
  }

  // unknown animal type
  pZooAni->m_sSciName = "???";
  pZooAni->m_sComName = "???";

  return pZooAni;
}

Variable Documentation

const char* AnimalCatalog[][2]

Initial value:

=
{
  {"elephas maximus",             "Asiatic elephant"},
  {"loxodonta africana",          "African bush elephant"},  
  {"python sebae",                "African rock python"}, 
  {"alligator mississippiensis",  "American alligator"},
  {"ramphastos toco",             "Toco toucan"},
  {"lasiorhinus latifrons",       "southern hairy-nosed wombat"},
  {"rhinoceros sondaicus",        "Javan rhinoceros"},
  {NULL, NULL}
}

Animal catalog of the world.

Definition at line 55 of file example_dlist.c.

Referenced by NewZooAnimal().

char* FlatEarthZooDeal[][2]

static

Initial value:

=
{
  {"Shoes",     "alligator mississippiensis"},
  {"Fluffy",    "loxodonta africana"},
  {"Snuggles",  "python sebae"},
  {"Wild Bill", "ramphastos toco"},
  {"The Prez",  "lasiorhinus latifrons"},
  {NULL, NULL}
}

Zoo we will "buy".

Definition at line 70 of file example_dlist.c.

Referenced by main().