File

Hi
I want to open a file like:

FILE *fp;
fp=fopen("c:\\leite.txt","w+");

My question is if i want to open the file like this;

Ansistring FileName;
FileName="leite.txt"

fp=fopen("c:\\"+FileName,"w+");

Something like this, i want to use outside AnsiString variable and then use it on fopen how i can do it???

Well with a std::string, it would be

std::string filename = "file.txt";
std::string = "c:\\" + filename;
fp = fopen( filename.c_str(), "w+" );

Does your ansiString come with a suitable method to return a const char * equivalent?

Hi
i did something like this but dont work:

FILE *fp;

AnsiString FileName;

FileName=Edit1->Text;
FileName="c:\\"+FileName;

fp=fopen(FileName.c_str(),"w+");
fclose(fp);

What i have to change??? Help..... Do i have to use AnsiString and make it Char???

Quote:

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Originally Posted by Leite33

Hi
i did something like this but dont work:

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be more specific

what interface AnsiString provides?

> Does your ansiString come with a suitable method to return a const char * equivalent?
Hint - this means you should go RTFM and find out what the API of ansiString is.

It's been a while since I used C++ Builder, but I believe AnsiString provided the c_str() function which returns a const char *. You shuold be able to press F1 and check what functions it provides to get a const char * back.

If that isnt the problem then you have to be more clear about what "doesnt work".
Just saying something doesnt work helps us nothing. it doesnt compile? the program crashes? no file is generated? what?