diff options
Diffstat (limited to 'io.c')
-rw-r--r-- | io.c | 10 |
1 files changed, 5 insertions, 5 deletions
@@ -1972,11 +1972,11 @@ rb_io_write_nonblock(VALUE io, VALUE str) * <i>length</i> must be a non-negative integer or nil. * * If <i>length</i> is a positive integer, - * It reads <i>length</i> bytes and - * returns a string which is <i>length</i> bytes long. - * If EOF is met after 1 or more bytes read but before <i>length</i> bytes read, - * a shorter string is returned. - * If EOF is met at beginning, nil is returned. + * it try to read <i>length</i> bytes. + * It returns nil or a string which length is 1 to <i>length</i> bytes. + * nil means it met EOF at beginning. + * The 1 to <i>length</i>-1 bytes string means it met EOF after reading the result. + * The <i>length</i> bytes string means it doesn't meet EOF. * * If <i>length</i> is omitted or is <code>nil</code>, * it reads until EOF. |