Segmentation fault ...while accessing the struct member of type vector

[jithin]

//defining structure

typedef struct config_files
{
string A;
string B;
string C;
vector<string>files;
config_files() : A(""),B(""),C(""){};//initializing the variables
}FILE_TYPES;

//updating the variables in another cpp file for eg file1.cpp

void XXX::aaa()
{
FILE_TYPES ffile;
ffile.A="AAA";
ffile.B="BBB";
ffile.C="CCC";

YYY::instance()->bbb(&ffile, NULL);

}

//then when we try to access the vector in another file its giving some junk value due to which it giving segentation fault in file2.cpp

void YYY::bbb()
{
if ( !ffile->files.empty() )
{
/*doing the related checks where it fails trying to access an uninitialised variable

which will be initialized in another file after executing this API .

So for this API to run successfully vector files should be empty ,which is not happening

as a result getting segmentation fault

*/
}

[firedraco]

Try clearing the vector...it should be cleared by default, but...