method

getbyte

v1_9_1_378 - Show latest stable - 0 notes - Class: IO

1_8_6_287
1_8_7_72 (0)
1_8_7_330 (0)
1_9_1_378 (-38)
1_9_2_180 (0)
1_9_3_125 (0)
1_9_3_392 (0)
2_1_10 (0)
2_2_9 (-12)
2_4_6 (0)
2_5_5 (0)
2_6_3 (0)
What's this?

getbyte() public

Gets the next 8-bit byte (0..255) from ios. Returns nil if called at end of file.

f = File.new("testfile")
f.getbyte   #=> 84
f.getbyte   #=> 104

Show source

VALUE
rb_io_getbyte(VALUE io)
{
    rb_io_t *fptr;
    int c;

    GetOpenFile(io, fptr);
    rb_io_check_readable(fptr);
    READ_CHECK(fptr);
    if (fptr->fd == 0 && (fptr->mode & FMODE_TTY) && TYPE(rb_stdout) == T_FILE) {
        rb_io_t *ofp;
        GetOpenFile(rb_stdout, ofp);
        if (ofp->mode & FMODE_TTY) {
            rb_io_flush(rb_stdout);
        }
    }
    if (io_fillbuf(fptr) < 0) {
        return Qnil;
    }
    fptr->rbuf_off++;
    fptr->rbuf_len--;
    c = (unsigned char)fptr->rbuf[fptr->rbuf_off-1];
    return INT2FIX(c & 0xff);
}

getbyte

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