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#include<iostream>
#include<fstream>
#include<cstring>
using namespace std;
string s_title;
int s_size;
class File
{
public:
string name;
int size;
ofstream out;
void PrintSize()
{ cout<<name<<"'s size is "<<size<<" kb"<<endl;
}
void SaveFile()
{
out<<s_title<<endl;
out<<s_size<<endl;
}
File();
File(string name, int size);
File *nxt, *bfr;
};
File *HEAD = NULL, *TAIL = NULL, *temp;
File::File(string n,int s)
{ name = n;
size = s;
nxt = NULL;
bfr = NULL;
}
void AddFileToTail(File *fail)
{ if(HEAD==NULL)
HEAD = fail;
if(TAIL!=NULL)
{ TAIL->nxt = fail;
fail->bfr = TAIL;
}
TAIL = fail;
}
void PrintFileList()
{ File *temp = HEAD;
int x=1;
while(temp!=NULL)
{ cout<<x<<". "; x++;
temp->PrintSize();
temp = temp->nxt;
}
}
File *loadFile()
{
File *add=NULL;
ifstream load;
load.open("File.txt");
string n;
int s;
while(true)
{
load>>n;
load>>s;
if(n=="#break#")
break;
add=new File(n,s); AddFileToTail(add);
}
load.close();
return add;
}
int main()
{
File *fail;
loadFile();
int x = 0; char y = 'n';
ofstream out;
while(true)
{ system("cls");
PrintFileList();
cout<<endl<<"Add a file? (y/n): "; cin>>y;
if(y=='y'||y=='Y')
{ string n; int s,b;
cout<<"input file name "; fflush(stdin);cin>>n;
cout<<"input file size "; fflush(stdin);cin>>s;
fail = new File(n,s);
AddFileToTail(fail);
system("cls");
PrintFileList();
}
else
break;
}
cout<<endl<<"~end~"<<endl<<endl;
system("pause");
return 0;
}
|
above is my program
which File.txt 's content is:
haha.doc
23
hello.ppt
42
form.xls
23
#break#
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I try to save the output of the program by doing this:
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temp=HEAD;
while(true)
{
string n;
int s;
cout<<"Save File...."<<endl;
if (temp==NULL)
{
new File(n,s);
out.open("File2.txt");
while(temp!=NULL)
{
s_title=temp->name;
s_size=temp->size;
ConvertName(s_title,false);
temp->SaveFile();// void SaveFile(){out<<s_title<<endl;out<<s_size<<endl;}
temp=temp->nxt;
}
out<<s_title;
out<<"#break#";
out.close();
cout<<endl<<endl;
cout<<"New item added successfully."<<endl;
break;
}
temp=temp->nxt;
}
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but it doesnt work, so how I gonna to solve this problem??
Last edited on
So your program works fine but just saving the output gives problems?
Are there any error messages?
From what I can see the second block initializes a File object with uninitialized variables n and s.
Last edited on