Security-55471.tar.gz

[apple/security.git] / utilities / src / comparison.h

diff --git a/utilities/src/comparison.h b/utilities/src/comparison.h
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+++ b/utilities/src/comparison.h
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+//
+//  comparison.h
+//  utilities
+//
+//  Created by Mitch Adler on 6/14/12.
+//  Copyright (c) 2012 Apple Inc. All rights reserved.
+//
+
+#ifndef utilities_comparison_h
+#define utilities_comparison_h
+
+#define MIN(a, b) ({ __typeof__ (a) _a = (a); __typeof__ (b) _b = (b); _a <= _b ? _a : _b; })
+#define MAX(a, b) ({ __typeof__ (a) _a = (a); __typeof__ (b) _b = (b); _a >= _b ? _a : _b; })
+
+uint64_t constant_memcmp(const uint8_t *first, const uint8_t *second, size_t count);
+
+#endif