Оператор continue

for (level=0;level<CatalogueCount;level++)
   {
    if ((level>0)&&(cat==0))
    {
        cout << " Error : Wrong path : Folder not found. Press any key to try again...";
        getch();
        input_path();
        catalogue(RootFirstCluster);
        continue;
    }
}

#include <process.h> //exit()
#include <stdio.h>
#include <ctype.h> //toupper()
#include <dos.h>
#include <string.h>
#include <conio.h>
#include <stdlib.h>
#include <iostream.h>
#include <iomanip.h>
 
void input_path();
void separate_path();
void boot_record();
void int21h(unsigned char disk, unsigned long begin_sector,unsigned int sector_count,void far* segment);
void catalogue(unsigned long cluster_number);
void files();
 
unsigned char Cluster[8][512];
unsigned int CatalogueCount;
unsigned char SeparatedPath[20][11];
unsigned char Path[100];
unsigned char DiskChar;
unsigned long RootFirstCluster;
unsigned long FATFirstSector;
unsigned long FileAndCatalogueSector;
unsigned int ClusterSize;
unsigned int FATTablesCount;
 
struct NAME_SIZE
{
    unsigned char name[8];
        unsigned long size;
};
 
struct INT_PARAM
{
   unsigned long Begin_Sector;
   unsigned int Sector_Count;
   unsigned int Offset;
   unsigned int Count;
};
 
struct BOOT_RECORD
{
   char unused1[11];
   unsigned int sector_size;
   unsigned char cluster_size;
   unsigned int reserved_sectors;
   unsigned char fat_tables_count;
   char unused2[19];
   unsigned long fat_table_size;
   char unused3[4];
   unsigned long root_start_cluster;
   char unused4[512-48];
};
 
void int21h(unsigned char disk, unsigned long begin_sector,
     unsigned int sector_count, void far* segment)
{
   INT_PARAM param;
   unsigned char ah_error;
   unsigned char al_error;
   param.Begin_Sector = begin_sector;
   param.Sector_Count = sector_count;
   param.Count = FP_SEG(segment);
   param.Offset = FP_OFF(segment);
   disk=disk - 0x40;
   asm{
      mov ax, 7305h
      mov dl, disk
      mov cx, 0ffffh
      lea bx, param
      mov si,0
      int 21h
      jnc end
      mov ah_error, ah
      mov al_error, al
   }
   printf(" Error : Int21h Error : Error Codes AH - %.2xh, AL - %.2xh",ah_error,al_error);
   cout << "\n Press any key to try again...";
   getch();
   input_path();
   int21h(DiskChar, 0, 1, segment);
   end:
}
 
void catalogue(unsigned long cluster_number)
{
   int level,f,cat;
   for (level=0;level<CatalogueCount;level++)
   {
    if ((level>0)&&(cat==0))
    {
        cout << " Error : Wrong path : Folder not found. Press any key to try again...";
        getch();
        input_path();
        catalogue(RootFirstCluster);
        continue;
    }
    cat=0;
    int21h(DiskChar,FileAndCatalogueSector+(cluster_number-2)*ClusterSize,ClusterSize,&Cluster);
    for(int i=0;i<ClusterSize;i++)//8 clasters
    {
        for(int k=0;k<16;k++)//16 records (1 record 32 bytes)final
        {
            if((Cluster[i][32*k+11]!=0x0F)&&(Cluster[i][32*k]!=0x00)&&((Cluster[i][32*k+11]&0x10)==0x10))//it is standart element and folder?
                {
                f=1;
                for(int j=0;j<11;j++)
                    if(SeparatedPath[level][j]!=Cluster[i][32*k+j])
                        f=0;
                if(f==1)
                                {
                    cluster_number=(Cluster[i][32*k+27]<<8)+Cluster[i][32*k+26];
                    cat=1;
                }
             }
                }
    }
 
   }
}
 
void files()
{
NAME_SIZE ns[128];
unsigned long file_size;
int c=0,imin;
for(int i=0;i<ClusterSize;i++)
   {
      for(int k=0;k<16;k++)//16 records in one sector
     if((Cluster[i][32*k+0]!=0xE5)&&(Cluster[i][32*k+0]!=0x00)&&(Cluster[i][32*k+11]!=0x0F)&&((Cluster[i][32*k+11]&0x10)!=0x10))
         { 
 
                for (int j=0;j<8;j++)
                ns[c].name[j]=Cluster[i][32*k+j];
                file_size=Cluster[i][32*k+31];
                file_size=(file_size<<8)+Cluster[i][32*k+30];
                file_size=(file_size<<8)+Cluster[i][32*k+29];
                file_size=(file_size<<8)+Cluster[i][32*k+28];
            ns[c].size = file_size;
                        c++;
     }
   }
imin=0;
for (i=1;i<c;i++)
    if (ns[imin].size>ns[i].size)
        imin=i;
cout << " Files in catalogue:" << endl;
for (i=0;i<c;i++)
{
    cout << "  File:";
    for (int j=0;j<8;j++)
        cout << ns[i].name[j];
        cout << " Size:" << ns[i].size << endl;
}
cout << " Result (Smallest file in catalogue):" << endl;
cout << "  File:";
for (int j=0;j<8;j++)
    cout << ns[imin].name[j];
cout << " Size:" << ns[imin].size;
}
 
void boot_record()
{
   BOOT_RECORD boot;
   int21h(DiskChar, 0, 1, &boot);
   ClusterSize = boot.cluster_size;
   RootFirstCluster = boot.root_start_cluster;
   FATFirstSector = boot.reserved_sectors;
   FileAndCatalogueSector = FATFirstSector + 2 * boot.fat_table_size;
   FATTablesCount = boot.fat_tables_count;
 
   //cout << "Sector Size = " << boot.sector_size << endl;
   //cout << "Cluster Size = " << ClusterSize << endl;
   //cout << "Reserved Sector = " << boot.reserved_sectors << endl;
   //cout << "FAT Tables Count = " << FATTablesCount << endl;
   //cout << "FAT Table Size = "  << boot.fat_table_size << endl;
   //cout << "Root Start Cluster = " << boot.root_start_cluster << endl;
   //cout << "FAT First Sector = " << FATFirstSector << endl;
   //cout << "FAF Sector = " << FileAndCatalogueSector << endl;
}  
 
 
void input_path()
{
   clrscr();
   cout << " Input path:" << endl;
   gets(Path);
   //syntax
   if (Path[1] != ':' || Path[2] != '\\' || Path[strlen(Path)-1]!='\\')
   {
      cout << " Error : Wrong syntax" << endl;
      cout << " Right syntax example : X:\\Folder_Name\\..." << endl;
      cout << " Press any key to try again...";
      getch();
      input_path();
   }
   //upcase
   for(int i = 0; i < strlen(Path); i++)
      Path[i] = toupper(Path[i]);
   DiskChar = Path[0];
   //separate
   separate_path();
}
 
void separate_path()
{
   int i,j,m=0,n=0;
   char c;
   for(i=0;i<20;i++)
   for(j=0;j<11;j++)
         SeparatedPath[i][j]=' ';//space
   for(i=3;i<strlen(Path);i++)
   {
      c=Path[i];
    //check lenght of name and extention and check is extention final record
      if(m>8)
      {
        cout << " Error : Wrong syntax : Use format 8.3" << endl;
    cout << " Press any key to try again...";
    getch();
    clrscr();
        input_path();
      }
 
      if(c=='\\')
      {
     n++;
     m=0;
     continue;
      }
      SeparatedPath[n][m]=c;
      m++;
   }  
      CatalogueCount=n+1;
}
 
int main()
{
   input_path();
   boot_record();
   catalogue(RootFirstCluster);
   files();
   getch();
   return 0;
}