#include <stdio.h>
#include <string.h>

struct myParam
{
    char cType;
    int  iNmbr;
    char pMsg[16+1];
};

typedef struct myParam myParam_t;

/* 引数の構造体に値を設定する */
void setParam( char       cType_in
             , int        iNmbr_in
             , char*      pMsg_in
             , myParam_t* param_out
             )
{
    printf( "set :addr:%p\n", param_out );
    param_out->cType = cType_in;
    param_out->iNmbr = iNmbr_in;
    strcpy( param_out->pMsg, pMsg_in );
}

/* 引数の構造体の内容を表示する */
void dspParam( myParam_t param )
{
    printf( "dsp :addr:%p\n", &param );
    printf( "Type=%c Nmbr=%d Msg=[%s]\n"
          , param.cType
          , param.iNmbr
          , param.pMsg
          );
}

/* 構造体のアドレスを表示する(テスト用) */
void dsp2Param( myParam_t *param )
{
    printf( "dsp2:addr:%p\n", param );
}

int main( void )
{
    myParam_t param;
    printf( "main:addr:%p\n", &param );

    setParam( 'A', 1, "apple", &param );
    dspParam( param );
    dsp2Param( &param );

    setParam( 'B', 2, "bread", &param );
    dspParam( param );

    setParam( 'C', 3, "coffee", &param );
    dspParam( param );

    return( 0 );
}