From 16d18724972298c4bf5fb59925649f869118fbac Mon Sep 17 00:00:00 2001
From: Jannick <unknown>
Date: Mon, 28 Aug 2017 17:03:55 +1000
Subject: Bug [#1966]. #define A is treated as #define A 1.

---
 lexers/LexCPP.cxx | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'lexers/LexCPP.cxx')

diff --git a/lexers/LexCPP.cxx b/lexers/LexCPP.cxx
index fbdbd77ca..3fa925b40 100644
--- a/lexers/LexCPP.cxx
+++ b/lexers/LexCPP.cxx
@@ -1333,6 +1333,8 @@ void SCI_METHOD LexerCPP::Lex(Sci_PositionU startPos, Sci_Position length, int i
 									while ((startValue < restOfLine.length()) && IsSpaceOrTab(restOfLine[startValue]))
 										startValue++;
 									std::string value = restOfLine.substr(startValue);
+									if (OnlySpaceOrTab(value))
+										value = "1";	// No value defaults to 1
 									preprocessorDefinitions[key] = value;
 									ppDefineHistory.push_back(PPDefinition(lineCurrent, key, value));
 									definitionsChanged = true;
-- 
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