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-rw-r--r--gdb/doc/ChangeLog5
-rw-r--r--gdb/doc/python.texi5
2 files changed, 9 insertions, 1 deletions
diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog
index 1f41498..87e20d3 100644
--- a/gdb/doc/ChangeLog
+++ b/gdb/doc/ChangeLog
@@ -1,3 +1,8 @@
+2019-03-26 Andrew Burgess <andrew.burgess@embecosm.com>
+
+ * python.texi (Pretty Printing API): Document use of None for the
+ display_hint.
+
2019-03-22 Alan Hayward <alan.hayward@arm.com>
Jiong Wang <jiong.wang@arm.com>
diff --git a/gdb/doc/python.texi b/gdb/doc/python.texi
index 6fadaff..56c925d 100644
--- a/gdb/doc/python.texi
+++ b/gdb/doc/python.texi
@@ -1294,7 +1294,7 @@ consumer as a @samp{displayhint} attribute of the variable being
printed.
This method is optional. If it does exist, this method must return a
-string.
+string or the special value @code{None}.
Some display hints are predefined by @value{GDBN}:
@@ -1317,6 +1317,9 @@ string-printing function to format the string. For the CLI this means
adding quotation marks, possibly escaping some characters, respecting
@code{set print elements}, and the like.
@end table
+
+The special value @code{None} causes @value{GDBN} to apply the default
+display rules.
@end defun
@defun pretty_printer.to_string (self)