Nikos Nikoleris has uploaded this change for review. (
https://gem5-review.googlesource.com/10441
Change subject: base: Add M5 flag for [[nodiscard]] attribute
......................................................................
base: Add M5 flag for [[nodiscard]] attribute
This change adds the M5_NODISCARD keyword to allow use of the
[[nodiscard]] attribute with compilers that support C++17. Currently,
C++17 is not a requirement and therefore the M5_NODISCARD has not
effect and does not break compilation for older compilers.
Change-Id: Ifc5c8f34764da3c7291066dcb2ff908c97738c3d
---
M src/base/compiler.hh
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/src/base/compiler.hh b/src/base/compiler.hh
index 6b00914..4765adc 100644
--- a/src/base/compiler.hh
+++ b/src/base/compiler.hh
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2012,2017 ARM Limited
+ * Copyright (c) 2012,2017-2018 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
@@ -73,9 +73,17 @@
#else
#define M5_FALLTHROUGH
#endif
+
+ #if __has_cpp_attribute(nodiscard)
+ #define M5_NODISCARD [[nodiscard]]
+ #else
+ #define M5_NODISCARD
+ #endif
#else
// Unsupported (and no warning) on GCC < 7.
#define M5_FALLTHROUGH
+
+ #define M5_NODISCARD
#endif
// std::make_unique redefined for C++11 compilers
--
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Gerrit-Project: public/gem5
Gerrit-Branch: master
Gerrit-Change-Id: Ifc5c8f34764da3c7291066dcb2ff908c97738c3d
Gerrit-Change-Number: 10441
Gerrit-PatchSet: 1
Gerrit-Owner: Nikos Nikoleris <nikos.nikole...@arm.com>
Gerrit-MessageType: newchange
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