2차원구조체 배열을 포인터로 사용하기...동적으로 할당되기 때

struct Protocl_720_Vertex **) 를 하면 에러..

     struct Protocl_720_Vertex *) 를 하면 익셉션..

=======> 아래와 같이 수정하니 되네요.. 

    struct Protocl_720_Vertex **pP_720_Vertex;

     pP_720_Vertex=(struct Protocl_720_Vertex **)malloc( sizeof(struct Protocl_720_Vertex)*link_count ) ; 

    //*pP <==fault <=================여기서 문제가 있었구요.

    //내부적으로 각각 malloc하는것을 생각하지못한것이 원인이네요.. 이 소스가 모두에게 도움이 되기를..^^*

     for(int i=0; i<link_count; i++)

     {

         pP_720_Vertex[i]=(struct Protocl_720_Vertex *)malloc( sizeof(struct Protocl_720_Vertex)*max_vertex_count ) ; 

         if(pP_720_Vertex[i] == 0)

         {

             printf("Memory Malloc 실패 \n"); return -1;

         }

         else

            memset( pP_720_Vertex[i],0x0,sizeof(struct Protocl_720_Vertex)*max_vertex_count);

     }

     ret=sizeof(struct Protocl_720_Vertex)*link_count*max_vertex_count;

     printf("print for pP_720_Vertex size==>[%d]: \n",ret);

=====>totoal source 

#include<stdio.h>

#include<stdlib.h>

#include<string.h>

struct Protocl_720_Info

{

    char   Query_type;

    int    stNodeID;

    int    link_count;

    unsigned int    ed_gpsX;

    unsigned int    ed_gpsY;

    char   ed_node_name[30];

};

struct Protocl_720_Node

{

    int   stNodeID;

    int   vertex_count;

};

struct Protocl_720_Vertex

{

    int gpsX;

    int gpsY;

    int angle;

};      

/**************************************************

함수명: get_vertex_info

목적  : pP_720_Vertex[node_count 또는 link_count][vertex_count] 구조에 필드 채우기 .

                                            ------------- P_720_Node.vertex_count 값이다.

                     ----------------------- -------------동적으로 변한다..

입력  : P_720_Node.idx ,link_count

리턴  : 1, error -1;

호출  : make_700

***************************************************/

unsigned int get_vertex_info(struct Protocl_720_Node *P_Node,struct Protocl_720_Vertex **pP_Vertex,int link_count);

 

int main()

{ 

     int ret; 

     int max_vertex_count=3;

     int link_count=4;

     struct Protocl_720_Node *P_720_Node;

     struct Protocl_720_Vertex **pP_720_Vertex;

 

      P_720_Node=(struct Protocl_720_Node *)malloc( sizeof(struct Protocl_720_Node)*link_count );

     if(  (P_720_Node==0) )

     {

          printf("Memory Malloc 실패 \n"); return -1;

     }

     memset(P_720_Node,0x0,sizeof(struct Protocl_720_Node)*link_count);

 

/*    pP_720_Vertex[0]=(struct Protocl_720_Vertex *)malloc( sizeof(struct Protocl_720_Vertex)*max_vertex_count*link_count ) ; */

     pP_720_Vertex=(struct Protocl_720_Vertex **)malloc( sizeof(struct Protocl_720_Vertex)*link_count ) ; 

     for(int i=0; i<link_count; i++)

     {

         pP_720_Vertex[i]=(struct Protocl_720_Vertex *)malloc( sizeof(struct Protocl_720_Vertex)*max_vertex_count ) ; 

         if(pP_720_Vertex[i] == 0)

         {

             printf("Memory Malloc 실패 \n"); return -1;

         }

         else

            memset( pP_720_Vertex[i],0x0,sizeof(struct Protocl_720_Vertex)*max_vertex_count);

     }

     ret=sizeof(struct Protocl_720_Vertex)*link_count*max_vertex_count;

     printf("print for pP_720_Vertex size==>[%d]: \n",ret);

 

     ret = get_vertex_info(P_720_Node,pP_720_Vertex,link_count);

  

     if( ret < 1)

     {

         printf("get vertex_Info Error\n"); return -1;

     }

     printf("ending\n"); 

      return 1;

}

 

 

 

unsigned int get_vertex_info(struct Protocl_720_Node *P_Node,struct Protocl_720_Vertex **pP_Vertex,int link_count)

{

      int i,j=1;

     for(i=0;i<link_count;i++)

      {

             P_Node[i].stNodeID=i*10+j;

      }

      for(i=0;i<link_count;i++)

      {

             printf("i[%d] [%d]\n",i,P_Node[i].stNodeID);

      }

      

      for(i=0;i<link_count;i++)

      {

          for(j=0;j<3;j++)

          {

             pP_Vertex[i][j].angle=i*10+j;

          }

      }

      for(i=0;i<link_count;i++)

      {

          for(j=0;j<3;j++)

          {

             printf("[%d]   ",pP_Vertex[i][j].angle);

          }

          printf("\n");

      }

 

  return 1;

}