ifstream and stl
Author
How do I use ifstream and stl together ?
To use stl I have to declare "using namespace std", but then fstream.h gets screwed and my ifstream becomes an ambiuous symbol.
Any ideas ?
Thanks,
Nitzan
-------------------------
www.geocities.com/nitzanw
www.scorchedearth3d.net
-------------------------
Author
My bad, I figured it out. fstream.h was screwing up because the std:: calls were no longer valid.
So I add std:: to all my stl calls and now it compiles and runs great.
My new question is:
Is the following code (taken from a site explaining STL) valid ?
Seems to me it should be :
Nitzan
-------------------------
www.geocities.com/nitzanw
www.scorchedearth3d.net
-------------------------
So I add std:: to all my stl calls and now it compiles and runs great.
My new question is:
Is the following code (taken from a site explaining STL) valid ?
quote:
vector vec1;
string line;
vec1.clear();
ifstream infile ("stl2in.txt");
while (getline(infile,line,''\n''))
{
vec1.push_back (line);
}
Seems to me it should be :
quote:
std::vector vec1;
std::string line;
vec1.clear();
ifstream infile ("stl2in.txt");
while (getline(infile,line,''\n''))
{
vec1.push_back (line);
}
Nitzan
-------------------------
www.geocities.com/nitzanw
www.scorchedearth3d.net
-------------------------
Looks to me like the difference between those snippets is that the first one makes use of including the entire std namespace (though it isn''t shown.)
Saying:
using namespace std;
vector myVector;
Is valid. The vector class is in the namespace std. Without telling the compiler to use the namespace std by default, to declare a vector you would have to say:
std::vector myVector;
aut viam inveniam aut faciam
MoonStar Projects
Saying:
using namespace std;
vector myVector;
Is valid. The vector class is in the namespace std. Without telling the compiler to use the namespace std by default, to declare a vector you would have to say:
std::vector myVector;
aut viam inveniam aut faciam
MoonStar Projects
This topic is closed to new replies.
Advertisement
Popular Topics
Advertisement
