READ 600MB text file in efficient and fast way???

[ahmedurrehman]

I want to read 600MB text file in a way as fast as possible.. please help me if any can

[toum]

use read() http://www.cplusplus.com/reference/istream/istream/read/

[SamuelAdams]

one line at a time.

[Cubbi]

memory mapping is usually helful when dealing with fast access to files.

There's portable support for it in boost: http://www.boost.org/doc/libs/release/libs/iostreams/doc/classes/mapped_file.html#mapped_file_source