end of line...

Hello, friends...
I am attempting to write a program that read characters from a file until the end of a line. However, my while loop refuses to stop. Does anyone know how I can test a single character to see if it is at the end of the line. In case it matters, I'm using Borland C++ 5.0

if (c == '\n') ...

or if this is C++ Builder & you're using AnsiString

if (astr[n] == '\n')

also in Windows, text files are usually end with line feed ('\n') and carriage return pairs ('\r').

Thank you much