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authorBen Gamari <bgamari.foss@gmail.com>2017-04-22 09:34:18 -0400
committerBen Gamari <ben@smart-cactus.org>2017-04-23 11:05:48 -0400
commitf13eebcc9b1407e5aeaf010536fcb5e469dbfe71 (patch)
tree99bb45d293b74ba0570a2555e07fed09f8c3f659 /rts/Arena.h
parent87fbf39a61d2535a172fbcecec098730eba1777f (diff)
downloadhaskell-f13eebcc9b1407e5aeaf010536fcb5e469dbfe71.tar.gz
cpp: Use #pragma once instead of #ifndef guards
This both says what we mean and silences a bunch of spurious CPP linting warnings. This pragma is supported by all CPP implementations which we support. Reviewers: austin, erikd, simonmar, hvr Reviewed By: simonmar Subscribers: rwbarton, thomie Differential Revision: https://phabricator.haskell.org/D3482
Diffstat (limited to 'rts/Arena.h')
-rw-r--r--rts/Arena.h5
1 files changed, 1 insertions, 4 deletions
diff --git a/rts/Arena.h b/rts/Arena.h
index 086a0200ad..8fa8236d8d 100644
--- a/rts/Arena.h
+++ b/rts/Arena.h
@@ -4,8 +4,7 @@
Arena allocation interface.
-------------------------------------------------------------------------- */
-#ifndef ARENA_H
-#define ARENA_H
+#pragma once
// Abstract type of arenas
typedef struct _Arena Arena;
@@ -21,5 +20,3 @@ RTS_PRIVATE void arenaFree ( Arena * );
// For internal use only:
RTS_PRIVATE unsigned long arenaBlocks( void );
-
-#endif /* ARENA_H */