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[PATCH] ignore-value: port to gcc -pedantic
From: |
Paul Eggert |
Subject: |
[PATCH] ignore-value: port to gcc -pedantic |
Date: |
Sun, 23 Jun 2013 11:55:33 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130510 Thunderbird/17.0.6 |
* lib/ignore-value.h (ignore_value):
Port to gcc -pedantic, by using __extension__.
Reindent as per usual gnulib style nowadays.
Simplify GCC version check.
---
ChangeLog | 8 ++++++++
lib/ignore-value.h | 13 +++++++------
2 files changed, 15 insertions(+), 6 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index ce43380..5898ff0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2013-06-23 Paul Eggert <address@hidden>
+
+ ignore-value: port to gcc -pedantic
+ * lib/ignore-value.h (ignore_value):
+ Port to gcc -pedantic, by using __extension__.
+ Reindent as per usual gnulib style nowadays.
+ Simplify GCC version check.
+
2013-06-21 Paul Eggert <address@hidden>
extern-inline: port to gcc -std=c89
diff --git a/lib/ignore-value.h b/lib/ignore-value.h
index 63ecde8..ebd6bf4 100644
--- a/lib/ignore-value.h
+++ b/lib/ignore-value.h
@@ -33,15 +33,16 @@
declared with attribute warn_unused_result". */
#ifndef _GL_IGNORE_VALUE_H
-# define _GL_IGNORE_VALUE_H
+#define _GL_IGNORE_VALUE_H
/* The __attribute__((__warn_unused_result__)) feature
is available in gcc versions 3.4 and newer,
while the typeof feature has been available since 2.7 at least. */
-# if __GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 4)
-# define ignore_value(x) ((void) (x))
-# else
-# define ignore_value(x) (({ __typeof__ (x) __x = (x); (void) __x; }))
-# endif
+#if 3 < __GNUC__ + (4 <= __GNUC_MINOR__)
+# define ignore_value(x) \
+ (__extension__ ({ __typeof__ (x) __x = (x); (void) __x; }))
+#else
+# define ignore_value(x) ((void) (x))
+#endif
#endif
--
1.7.11.7
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