Re: help with c++ program

From:
"Bo Persson" <bop@gmb.dk>
Newsgroups:
microsoft.public.vc.language
Date:
Sun, 15 Oct 2006 23:33:01 +0200
Message-ID:
<4pfnobFhcuslU1@individual.net>
marsze@yahoo.com wrote:

Hi, I hope this is the right group for this question.
i'm writing a simple form program in Visual C++ express.

the following code reads a configuration file and works fine:
private: void ReadCfg(void) {
string fileline;
char* Adir;
Adir = "C:\\demand\\MipMenu\\MipMenu.cfg" ;
ifstream CfgFile (Adir);
getline(CfgFile, fileline);
processline(fileline, 1) ;
....

now i want to put the configuration file in the current directory.
this works fine in debug, but gives an error when executing without
debugging (I checked the file is in the debug and release
directories).

private: void ReadCfg(void) {
string fileline;
char* Adir;
const char *fname = "\\MipMenu.cfg";
// Get the current working directory:
if( (Adir = _getcwd( NULL, 0 )) == NULL )
perror( "_getcwd error" );
strcat(Adir, fname);


You cannot do this here. There is no space allocated for the combined
string!

That it seems to work in debug mode is just (bad) luck.

Why don't you try to use a std::string for the file name as well, not
just for the fileline.

Bo Persson

ifstream CfgFile (Adir); //C:\\demand\\MipMenu\\
getline(CfgFile, fileline);
processline(fileline, 1) ;
....

Any help will be appreciated
Marcos

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