From 1658edceee85bd5f57e8dd39075f1d127260d5b6 Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Fri, 28 Nov 2014 10:03:38 +0200 Subject: lib: Add swap() macro MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit swap() will swap its two arguments while keeping the required tmp variable hidden. Makes for neater code. Signed-off-by: Ville Syrjälä --- lib/igt_aux.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'lib/igt_aux.h') diff --git a/lib/igt_aux.h b/lib/igt_aux.h index 6c83c53e..63e1b06a 100644 --- a/lib/igt_aux.h +++ b/lib/igt_aux.h @@ -90,4 +90,10 @@ void intel_require_memory(uint32_t count, uint32_t size, unsigned mode); #define min(a, b) ((a) < (b) ? (a) : (b)) #define max(a, b) ((a) > (b) ? (a) : (b)) +#define swap(a, b) do { \ + typeof(a) _tmp = (a); \ + (a) = (b); \ + (b) = _tmp; \ +} while (0) + #endif /* IGT_AUX_H */ -- cgit v1.2.3