Kód: Vybrať všetko

#include "stdio.h"
#include "malloc.h"
#include "string.h"

#define MAX_LENGTH 100
#define COUNT_ITEM 50
struct PARAM
{
	char *Meno;
	char *Priezvisko;
	char *Rocnik;
	char *Odbor;
	char *Cislo;
};

struct PARAM *g_Param[COUNT_ITEM];
FILE  *g_file;

void Vypis( int PocetZ )
{
  int i;

  for( i = 0; i < PocetZ; i++ )
  {
    printf( "[%d] %s\t  %s\t\t  %s  %s  %s\n", i, 
             g_Param[i]->Priezvisko,
             g_Param[i]->Meno,
             g_Param[i]->Rocnik,
             g_Param[i]->Odbor,
             g_Param[i]->Cislo);
  }
}

void FreeMem( int UvolniP  )
{
   free( g_Param[UvolniP ]->Meno );
   free( g_Param[UvolniP ]->Priezvisko );
   free( g_Param[UvolniP ]->Rocnik );
   free( g_Param[UvolniP ]->Odbor );
   free( g_Param[UvolniP ]->Cislo );

   free( g_Param[UvolniP ]);
}

void Pridaj( int *pPocetZ )
{
    if( *pPocetZ < COUNT_ITEM )
    {
		g_Param[*pPocetZ] = (struct PARAM *) malloc(sizeof(struct PARAM));

      g_Param[*pPocetZ]->Meno = (char*) malloc(MAX_LENGTH);
      printf( "Zadaj meno : ");
      scanf( "%s", g_Param[*pPocetZ]->Meno );

      g_Param[*pPocetZ]->Priezvisko = (char*) malloc(MAX_LENGTH);
      printf( "\nZadaj priezvisko : ");
      scanf( "%s", g_Param[*pPocetZ]->Priezvisko );

      g_Param[*pPocetZ]->Rocnik = (char*) malloc(MAX_LENGTH);
      printf( "\nZadaj aktualny rocnik : ");
      scanf( "%s", g_Param[*pPocetZ]->Rocnik );

      g_Param[*pPocetZ]->Odbor = (char*) malloc(MAX_LENGTH);
      printf( "\nZadaj studijny odbor : ");
      scanf( "%s", g_Param[*pPocetZ]->Odbor );

      g_Param[*pPocetZ]->Cislo = (char*) malloc(MAX_LENGTH);
      printf( "\nZadaj evidencne cislo : ");
      scanf( "%s", g_Param[*pPocetZ]->Cislo );

      (*pPocetZ)++;
    }
    else
    {
      printf( "Zoznam je plny" );
    }
}

void Zmaz(int *pPocetZ)
{
  int i;
  int UvolniP ;

  Vypis( *pPocetZ );

  if( *pPocetZ != 0 )
  {
    printf( "Zadaj cislo zaznamu ktory chces zmazat : " );
    scanf( "%d", &UvolniP  );

    for( i = UvolniP ; i < ((*pPocetZ)-1); i++ )
    {
		strcpy( g_Param[i]->Meno,g_Param[i+1]->Meno);
		strcpy( g_Param[i]->Priezvisko,g_Param[i+1]->Priezvisko);
		strcpy( g_Param[i]->Rocnik,g_Param[i+1]->Rocnik);
		strcpy( g_Param[i]->Odbor,g_Param[i+1]->Odbor);
		strcpy( g_Param[i]->Cislo,g_Param[i+1]->Cislo);
    }

	if ((*pPocetZ)-1==0)
	{
		FreeMem( 0 );
	}
	else
	{
		FreeMem( (*pPocetZ)-1 );
	}
  
    (*pPocetZ)--;
  }
  else
  {
    printf( "!!! Prazdny zoznam !!!\n" );
  }
}

void Zotried(int PocetZ)
{
  int i;
  int j;

  struct PARAM *helpParam;

  for( i = 0; i < PocetZ-1; i++)
  {
    for( j = i+1; j < PocetZ; j++ )
    {
      if( strcmp( g_Param[j]->Priezvisko, g_Param[i]->Priezvisko ) < 0 )
      {
          helpParam = g_Param[j];
          g_Param[j] = g_Param[i];
          g_Param[i] = helpParam;
      }
    }
  }
}


void Nacitaj( int *pPocetZ )
{
  int nRet;
  int i;

  for( i = 0; i < *pPocetZ; i++ )
  {
    FreeMem( i );
  }

  *pPocetZ = 0;

  g_file = fopen( "zoznam studentov.dat", "r" );
  do
  {
    if( *pPocetZ < COUNT_ITEM )
    {
		g_Param[*pPocetZ] = (struct PARAM *) malloc(sizeof(struct PARAM));

      g_Param[*pPocetZ]->Meno = (char*) malloc(MAX_LENGTH);
      g_Param[*pPocetZ]->Priezvisko = (char*) malloc(MAX_LENGTH);
      g_Param[*pPocetZ]->Rocnik = (char*) malloc(MAX_LENGTH);
      g_Param[*pPocetZ]->Odbor = (char*) malloc(MAX_LENGTH);
      g_Param[*pPocetZ]->Cislo = (char*) malloc(MAX_LENGTH);
      
      nRet = fscanf( g_file, "%s\t%s\t%s\t%s\t%s\n",
                     g_Param[*pPocetZ]->Meno,
                     g_Param[*pPocetZ]->Priezvisko,
                     g_Param[*pPocetZ]->Rocnik,
                     g_Param[*pPocetZ]->Odbor,
                     g_Param[*pPocetZ]->Cislo);

      if( nRet != EOF )
      {
        (*pPocetZ)++;
      }
      else
      {
        FreeMem( *pPocetZ );
//		(*pPocetZ)--;
      }
    }
    else
    {
      printf( "Zoznam je plny" );
      break;
    }
  }while( nRet != EOF );
  
  fclose( g_file );
}

void Uloz( int PocetZ )
{     
  int i;

  g_file = fopen( "zoznam studentov.dat", "w" );
  if( g_file == NULL )
  {
    printf("nemozem zapisat");
  }
  else
  {
    for( i = 0; i < PocetZ; i++ )
    {
      fprintf( g_file, "%s\t%s\t%s\t%s\t%s\n",
               g_Param[i]->Meno,
               g_Param[i]->Priezvisko,
               g_Param[i]->Rocnik,
               g_Param[i]->Odbor,
               g_Param[i]->Cislo);
    }

    fclose( g_file );
  }
}

void main()
{
    char CisloO;
    int PocetZ;
    int i;

    PocetZ = 0;

    do
    {
      printf( "\n******************* MENU *******************\n\n" );
      printf( "\t[1]. \tPridanie studenta\n");
      printf( "\t[2]. \tOdstranenie studenta\n");
      printf( "\t[3]. \tUsporiadanie podla priezviska\n");
      printf( "\t[4]. \tHladanie podla evidencneho cisla\n");
      printf( "\t[5]. \tVypis studentov\n" );
      printf( "\t[6]. \tUlozenie do suboru\n");
      printf( "\t[7]. \tNacitanie zo suboru\n");
      printf( "\t[8]. \tUkoncenie programu\n" );
      printf( "\n******************* MENU *******************\n" );
      printf( "\nZadaj volbu : " );
      scanf( "%s", &CisloO );
      printf( "\n" );


      switch( CisloO )
      {
        case '1': Pridaj( &PocetZ );
                  break;
        case '2': Zmaz( &PocetZ );
                  break;
        case '3': Zotried( PocetZ);
                  break;
       case '4': Hladaj( PocetZ );
                  break;
        case '5': Vypis( PocetZ );
                  break;
        case '6': Uloz( PocetZ );
                  break;
        case '7': Nacitaj( &PocetZ );
                  break;
      }
    }while( CisloO != '8' );

    for( i = 0; i < PocetZ; i++ )
    {
      FreeMem( i );
    }
}

Kód: Vybrať všetko

void Hladaj( int PocetZ ){
     
  int i;
  int Chyba=1;
  char Pomoc[MAX_LENGTH];
  
  printf("Zadaj EV: ");
  scanf("%s", Pomoc);
  
  for(i=0;i<PocetZ;i++){
    if(strcmp(g_Param[i]->Cislo, Pomoc) == 0){
      printf( "[%d] %s\t  %s\t\t  %s  %s  %s\n", i,
             g_Param[i]->Priezvisko,
             g_Param[i]->Meno,
             g_Param[i]->Rocnik,
             g_Param[i]->Odbor,
             g_Param[i]->Cislo);
      
      Chyba = 0;
    }  
  }
  if(Chyba == 1)
    printf("Ev cislo nieje ...");
}