From ce768453c1c676c74a6f310d9f948f7555fa3314 Mon Sep 17 00:00:00 2001 From: Stefan Monnier Date: Mon, 26 Nov 2001 02:19:38 +0000 Subject: [PATCH] (set_text_properties_1): Clearly mark that the interval should not be empty. --- src/textprop.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/textprop.c b/src/textprop.c index a473bebeab6..cd07484204b 100644 --- a/src/textprop.c +++ b/src/textprop.c @@ -1303,7 +1303,8 @@ set_text_properties (start, end, properties, object, signal_after_change_p) properties PROPERTIES. BUFFER is the buffer containing the text. This does not obey any hooks. You can provide the interval that START is located in as I, - or pass NULL for I and this function will find it. */ + or pass NULL for I and this function will find it. + This function assumes that START < END. */ void set_text_properties_1 (start, end, properties, buffer, i) @@ -1316,6 +1317,7 @@ set_text_properties_1 (start, end, properties, buffer, i) s = XINT (start); len = XINT (end) - s; + eassert (len > 0); if (i == 0) i = find_interval (BUF_INTERVALS (XBUFFER (buffer)), s); -- 2.39.2