open file for different name everytime it runs

**Jasonymk** · 03-02-2003

Code:

char id[10];
cout << "enter file name"
cin.getline(id,10);

if i entered "123456", how to wirte the syntax for openning the file 123456.txt?

**Stoned_Coder** · 03-02-2003

use strcat() from string.h or cstring. Look it up in your helpfiles.
Make an attempt. If you find its broken and u cant fix it then repost in this thread.

**Jasonymk** · 03-02-2003

Code:

char id[10];
cout << "please enter the file name:";
cin.getline(id,10);

if i entered 123456,
what i mean is how to write the syntax so that the progam can reconize what i type as:

ifstream file1(C:\\dir1\\dir2\\123456.txt) ???

strcat() is to combine two string right??so i think it is different from what i am trying to do.....

**Stoned_Coder** · 03-02-2003

well dont you think strcat(input,".txt"); might be a good starting point?

**Jasonymk** · 03-02-2003

Code:

char id[10]="565656";
char buf1[100] = "\"C:\\testing\\script\\data\\";

strcat(buf1,id);
strcat(buf1,".txt\"");

cout << buf1 ;

ofstream filex(buf1);
filex << "testing";
filex.close();

while the output of buf1 is "C:\testing\script\data\565656.txt"
but the file have not created in the directory.

is the problem happened in ofstream filex(buf1)???

**Jasonymk** · 03-02-2003

problem fixed....i should not add the " sign at the beginning and the end of C:\.........

**scottmanc** · 03-03-2003

all you needed to do was put it into a string and then use the + operator to add the ".txt"

**Jasonymk** · 03-03-2003

i have tried that before but it cant......

or can you send me the code?

**scottmanc** · 03-04-2003

for example

Code:

fstream instream;
string filename;
string name;
cin>>name;
string addon = ".txt";
filename = name + addon;
instream.open(filename.c_str())
...

and so on

**Codeplug** · 03-04-2003

Don't confuse the poor guy with STL...he should atleast implement his own String class first

gg

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open file for different name everytime it runs

mmmmm...what i mean is.....

...i can make the statement...but cant create the file...

problem fixed

no it cant

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