string format question

HarryBoy · 02-03-2010, 09:32 AM

I am using C.
I have a fuction that returns a string

Code:

 std::string name = getstingValue();

I need to format this string so that I can create a text file like so:

So I'm trying:

Code:

std::string newfilepath;
sprintf(newfilepath, "//myfolder//myfiles//%s", filename);
std::ofstream myfile(newfilepath.c_str());

But I get errors like:
cannot convert ‘std::string’ to ‘char*’ for argument ‘1’ to ‘int sprintf(char*, const char*, ...)’

How can I deal with this?

carbonfiber · 02-03-2010, 10:16 AM

Quote:

Originally Posted by HarryBoy

I am using C.

No you're not.

Quote:

How can I deal with this?

Learn the difference between char * and std::string.

smeezekitty · 02-03-2010, 04:38 PM

Code:

std::string newfilepath;
newfilepath=("//myfolder//myfiles//");
newfilepath+=filename;