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Reading a file with out of FILE.

Hi experts,

I have the file data.dat with 2 columns such as this:

12asb24 31niel93
89bhgj83 57yv76
...
32dae56 49jsn01

with N data.
I need read the file using "ifstream" , not FILE . and store it in a matrix with dimention of N x 2 .

any idea? thanks a lot. !

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itsmeandnobodyelse

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hernan007

ASKER

Hi Alex thanks !!

In order to use the function only is with a call like this? rigth?

main(){
....
vector<Record> x;
..........
int val= readData("data.dat", x);
....

hernan007

ASKER

Well I have this error msg :(

main.cc: In function ‘int readData(const std::string&, std::vector<Record, std::allocator<Record> >&)’:main.cc:38: error: no matching function for call to ‘std::basic_ifstream<char, std::char_traits<char> >::basic_ifstream(<unresolved overloaded function type>)’
/usr/lib/gcc/i386-redhat-linux/4.1.1/../../../../include/c++/4.1.1/fstream:442: note: candidates are: std::basic_ifstream<_CharT, _Traits>::basic_ifstream(const char*, std::_Ios_Openmode) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i386-redhat-linux/4.1.1/../../../../include/c++/4.1.1/fstream:428: note: std::basic_ifstream<_CharT, _Traits>::basic_ifstream() [with _CharT = char, _Traits = std::char_traits<char>]

itsmeandnobodyelse

It needs to be

ifstream ifs(filename.c_str());

It was a typo.

>>>> with a call like this? rigth?

Yes, beside that main should have an int type and should return 0 ;-)

hernan007

ASKER

Thanks! alex.