From: Rich Felker <dalias@aerifal.cx>
Date: Wed, 17 Dec 2014 21:44:43 +0000 (-0500)
Subject: make the result of the cimag macro a non-lvalue
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=4075af4318676ebbe5949eb9cee3fec7008de4d7;p=android-x86%2Fexternal-musl-libc.git

make the result of the cimag macro a non-lvalue

this change is not necessary but helps diagnose invalid code. based on
patch by Jens Gustedt.
---

diff --git a/include/complex.h b/include/complex.h
index 23bab7d5..bdddf87b 100644
--- a/include/complex.h
+++ b/include/complex.h
@@ -103,7 +103,7 @@ long double creall(long double complex);
 
 #ifndef __cplusplus
 #define __CIMAG(x, t) \
-	((union { _Complex t __z; t __xy[2]; }){(_Complex t)(x)}.__xy[1])
+	(+(union { _Complex t __z; t __xy[2]; }){(_Complex t)(x)}.__xy[1])
 
 #define creal(x) ((double)(x))
 #define crealf(x) ((float)(x))