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| author | Kaz Kylheku <kaz@kylheku.com> | 2014-06-03 06:21:36 -0700 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2014-06-03 06:21:36 -0700 |
| commit | c66aa75d955df8eae0b5553a5a57601245ad65af (patch) | |
| tree | f63352f1f7966a0d7dd2efd9bb855a8c16bc099e /txr.1 | |
| parent | e2437397f8f4430fd479cafe9495e5a19e970f86 (diff) | |
| download | txr-c66aa75d955df8eae0b5553a5a57601245ad65af.tar.gz txr-c66aa75d955df8eae0b5553a5a57601245ad65af.tar.bz2 txr-c66aa75d955df8eae0b5553a5a57601245ad65af.zip | |
Documenting the return value of rplaca and rplacd, and changing
it to be the cell, rather than the new value.
* eval.c (transform_op): Fix use of rplacd that uses return value.
(force): Likewise.
* lib.c (rplaca, rplacd): Return cons.
(rem_lazy_rec, obj_init): Fix use of rplacd that uses return value.
* txr.1: Documented.
Diffstat (limited to 'txr.1')
| -rw-r--r-- | txr.1 | 5 |
1 files changed, 5 insertions, 0 deletions
@@ -7102,6 +7102,11 @@ is the same as the more generic (set (car x) y), and likewise It is an error if <cons> is not a cons or lazy cons. In particular, whereas (car nil) is correct, (rplaca nil ...) is erroneous. +The rplaca and rplacd functions return <cons>. + +Note: TXR versions 89 and earlier, these functions returned the new value. +The behavior was undocumented. + .SS Functions second, third, fourth, fifth and sixth .TP |