Reprint of the Amiga Guru Book

[Piru]

I've found a couple of errors from the book. :-)

[Piru]

I've forgot the others, but the most obvious one is the wrong documentation and example usage of dos.library/ReadLink() and ACTION_READ_LINK. The return value is not BOOL success value, but:
dp_Res1
-2 the passed buffer was too small
-1 some other error occured, dp_Res2 has more info
other: length of the string filled to buffer

And the same mapped to ReadLink(), where dp_Res2 is in IoErr(), and dp_Res1 in D0.

Thus example code of

Code: [Select]


if (ReadLink(...))
{
  /* success - do stuff */
}
else
{
  /* failed */
}
...is wrong. It should be:

Code: [Select]


if (ReadLink(...) > 0)