method
eof
ruby latest stable - Class:
ARGF
eof()public
Returns true if the current file in ARGF is at end of file, i.e. it has no data to read. The stream must be opened for reading or an IOError will be raised.
$ echo "eof" | ruby argf.rb ARGF .eof? #=> false 3.times { ARGF .readchar } ARGF .eof? #=> false ARGF .readchar #=> "\n" ARGF .eof? #=> true
static VALUE
argf_eof(VALUE argf)
{
next_argv();
if (RTEST(ARGF.current_file)) {
if (ARGF.init_p == 0) return Qtrue;
next_argv();
ARGF_FORWARD(0, 0);
if (rb_io_eof(ARGF.current_file)) {
return Qtrue;
}
}
return Qfalse;
}