[latex3-commits] [git/LaTeX3-latex3-latex2e] picture-lengths: document using advance with defaultunitsset (6e4675ba)

[David Carlisle]

Repository : https://github.com/latex3/latex2e
On branch  : picture-lengths
Link       : https://github.com/latex3/latex2e/commit/6e4675bae3931cfd8b4ef9d9318aca7ae7b52d29

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commit 6e4675bae3931cfd8b4ef9d9318aca7ae7b52d29
Author: David Carlisle <d.p.carlisle at gmail.com>
Date:   Sun Aug 16 17:04:34 2020 +0100

    document using advance with defaultunitsset


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6e4675bae3931cfd8b4ef9d9318aca7ae7b52d29
 base/ltpictur.dtx | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/base/ltpictur.dtx b/base/ltpictur.dtx
index fdd0e64a..5bef4037 100644
--- a/base/ltpictur.dtx
+++ b/base/ltpictur.dtx
@@ -197,6 +197,11 @@
 % accepting number or an etex length expression, |#2|,
 % with default unit, |#3|.
 %
+% The register name in |#1| can be prefixed by |\advance| so that
+% the register is incremented by the supplied value.
+%
+% |\@defaultunitsset{\advance\@vxx}{\textwidth-15pt}\unitlength|
+%
 % |#3| can be a literal unit such as |cm| or a length register such
 % as |\unitlength|.
 %