From b5f077d22cf0efe77f53e43d66c05e2bb2a1d36f Mon Sep 17 00:00:00 2001
From: Christoph Hertzberg <chtz@informatik.uni-bremen.de>
Date: Thu, 25 Oct 2018 16:49:25 +0200
Subject: Document EIGEN_NO_IO preprocessor directive

---
 doc/PreprocessorDirectives.dox | 1 +
 1 file changed, 1 insertion(+)

(limited to 'doc/PreprocessorDirectives.dox')

diff --git a/doc/PreprocessorDirectives.dox b/doc/PreprocessorDirectives.dox
index d801798c9..7e9e30c4b 100644
--- a/doc/PreprocessorDirectives.dox
+++ b/doc/PreprocessorDirectives.dox
@@ -78,6 +78,7 @@ functions by defining EIGEN_HAS_C99_MATH=1.
    Automatic detection disabled if EIGEN_MAX_CPP_VER<11.
  - \b EIGEN_HAS_CXX11_NOEXCEPT - defines whether noexcept is supported
    Automatic detection disabled if EIGEN_MAX_CPP_VER<11.
+ - \b EIGEN_NO_IO - Disables any usage and support for `<iostreams>`.
 
 \section TopicPreprocessorDirectivesAssertions Assertions
 
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