ref: 3668e19263f2c0a17055eb6fc31c97b16617f32d
dir: /test/bio-peek.myr/
use std
use bio
const main = {
var f
/* Must be bigger than a bio buffer (ie, > 64k) */
var buf : byte[64*1024]
match bio.open("data/datafile", bio.Rd)
| `std.Some bio: f = bio
| `std.None: std.fatal(1, "Unable to open data file")
;;
std.assert(bio.peekb(f) == 0x30, "wrong byte value read from datafile")
std.assert(bio.peekc(f) == '0', "wrong char value read from datafile")
bio.read(f, buf[:4]) /* skip ahead 4 bytes */
std.assert(bio.peekb(f) == 0x34, "wrong byte value read from datafile")
std.assert(bio.peekc(f) == '4', "wrong char value read from datafile")
bio.read(f, buf[:]) /* skip ahead 64k */
std.assert(bio.peekb(f) == 0x30, "wrong byte value read from datafile")
std.assert(bio.peekc(f) == '0', "wrong char value read from datafile")
bio.close(f);
std.put("Succeded peeeking values\n")
}