From: Jason Merrill <jason@gcc.gnu.org>
Date: Fri, 1 Dec 2017 21:17:32 +0000 (-0500)
Subject: * doc/extend.texi: Mention C++14 library complex suffix.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=19041dad9b7f03b32775864c41649a81ebca8092;p=gcc.git

* doc/extend.texi: Mention C++14 library complex suffix.

From-SVN: r255339
---

diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index 30f89b09699..3d5e15c9744 100644
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -897,6 +897,10 @@ conforming C library (such as the GNU C Library), and want to construct complex
 constants of floating type, you should include @code{<complex.h>} and
 use the macros @code{I} or @code{_Complex_I} instead.
 
+The ISO C++14 library also defines the @samp{i} suffix, so C++14 code
+that includes the @samp{<complex>} header cannot use @samp{i} for the
+GNU extension.  The @samp{j} suffix still has the GNU meaning.
+
 @cindex @code{__real__} keyword
 @cindex @code{__imag__} keyword
 To extract the real part of a complex-valued expression @var{exp}, write