From ae4b05e2c51d07369b5d131052099ac346b0841c Mon Sep 17 00:00:00 2001
From: Lorenz Meier <lm@inf.ethz.ch>
Date: Fri, 28 Nov 2014 09:27:42 +0100
Subject: Undefine C macros conflicting with equivalent functions in C++

---
 nuttx/include/cxx/cctype | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/nuttx/include/cxx/cctype b/nuttx/include/cxx/cctype
index 5d3b6dc70..d3304247a 100644
--- a/nuttx/include/cxx/cctype
+++ b/nuttx/include/cxx/cctype
@@ -42,6 +42,21 @@
 
 #include <ctype.h>
 
+// Remove macros in favor of real functions
+#undef isalnum
+#undef isalpha
+#undef iscntrl
+#undef isdigit
+#undef isgraph
+#undef islower
+#undef isprint
+#undef ispunct
+#undef isspace
+#undef isupper
+#undef isxdigit
+#undef tolower
+#undef toupper
+
 //***************************************************************************
 // Namespace
 //***************************************************************************
-- 
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