intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 62 insertions, 0 deletions

diff --git a/contrib/libs/hyperscan/src/rose/rose_build_util.h b/contrib/libs/hyperscan/src/rose/rose_build_util.h
new file mode 100644
index 0000000000..81bb68459b
--- /dev/null
+++ b/contrib/libs/hyperscan/src/rose/rose_build_util.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2015-2016, Intel Corporation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of Intel Corporation nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef ROSE_BUILD_UTIL_H
+#define ROSE_BUILD_UTIL_H
+
+#include "rose_graph.h"
+#include "util/graph.h"
+
+#include <algorithm>
+
+namespace ue2 {
+
+/** Max allowed width for transient graphs in block mode */
+#define ROSE_BLOCK_TRANSIENT_MAX_WIDTH 255U
+
+/**
+ * \brief Add two Rose depths together, coping correctly with infinity at
+ * ROSE_BOUND_INF.
+ */
+static inline
+u32 add_rose_depth(u32 a, u32 b) {
+    assert(a <= ROSE_BOUND_INF);
+    assert(b <= ROSE_BOUND_INF);
+
+    if (a == ROSE_BOUND_INF || b == ROSE_BOUND_INF) {
+        return ROSE_BOUND_INF;
+    }
+
+    u32 rv = a + b;
+    assert(rv >= a && rv >= b);
+    return rv;
+}
+
+} // namespace ue2
+
+#endif // ROSE_BUILD_UTIL_H