From e78bd69619289eb8a981a0d33f17a1ca0e233bee Mon Sep 17 00:00:00 2001
From: Araq <rumpf_a@web.de>
Date: Mon, 27 Feb 2017 16:16:14 +0100
Subject: [PATCH] C codegen: escape '?' because C has trigraphs

---
 compiler/msgs.nim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler/msgs.nim b/compiler/msgs.nim
index 0d30651bb4..acf171cbe8 100644
--- a/compiler/msgs.nim
+++ b/compiler/msgs.nim
@@ -532,7 +532,7 @@ var
 proc toCChar*(c: char): string =
   case c
   of '\0'..'\x1F', '\x80'..'\xFF': result = '\\' & toOctal(c)
-  of '\'', '\"', '\\': result = '\\' & c
+  of '\'', '\"', '\\', '?': result = '\\' & c
   else: result = $(c)
 
 proc makeCString*(s: string): Rope =