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authorskidd13 <skidd13@openttd.org>2008-06-14 16:23:08 +0000
committerskidd13 <skidd13@openttd.org>2008-06-14 16:23:08 +0000
commit96fc91baf333b6fb874f53bf4cf0a744bd0303aa (patch)
treed5b906fe92067ad24f299aa231dd338520d277f1 /src/core/mem_func.hpp
parentbf9a32b4757aaf7b189889063c9a293a508494b1 (diff)
downloadopenttd-96fc91baf333b6fb874f53bf4cf0a744bd0303aa.tar.xz
(svn r13516) -Codechange: Move MemCpyT to a fitting core header
-Codechange: Split the sorting code from the sortlist to an appropriate header
Diffstat (limited to 'src/core/mem_func.hpp')
-rw-r--r--src/core/mem_func.hpp57
1 files changed, 57 insertions, 0 deletions
diff --git a/src/core/mem_func.hpp b/src/core/mem_func.hpp
new file mode 100644
index 000000000..5a2a6bcb3
--- /dev/null
+++ b/src/core/mem_func.hpp
@@ -0,0 +1,57 @@
+/* $Id$ */
+
+/** @file mem_func.hpp Functions related to memory operations. */
+
+#ifndef MEM_FUNC_HPP
+#define MEM_FUNC_HPP
+
+#include <string.h>
+#include "math_func.hpp"
+
+/**
+ * Type-safe version of memcpy().
+ *
+ * @param destination Pointer to the destination buffer
+ * @param source Pointer to the source buffer
+ * @param num number of items to be copied. (!not number of bytes!)
+ */
+template <typename T>
+FORCEINLINE void MemCpyT(T *destination, const T *source, uint num = 1)
+{
+ memcpy(destination, source, num * sizeof(T));
+}
+
+/**
+ * Type safe memory reverse operation.
+ * Reverse a block of memory in steps given by the
+ * type of the pointers.
+ *
+ * @param ptr1 Start-pointer to the block of memory.
+ * @param ptr2 End-pointer to the block of memory.
+ */
+template<typename T>
+FORCEINLINE void MemReverseT(T *ptr1, T *ptr2)
+{
+ assert(ptr1 != NULL && ptr2 != NULL);
+ assert(ptr1 < ptr2);
+
+ do {
+ Swap(*ptr1, *ptr2);
+ } while (++ptr1 < --ptr2);
+}
+
+/**
+ * Type safe memory reverse operation (overloaded)
+ *
+ * @param ptr Pointer to the block of memory.
+ * @param num The number of items we want to reverse.
+ */
+template<typename T>
+FORCEINLINE void MemReverseT(T *ptr, uint num)
+{
+ assert(ptr != NULL);
+
+ MemReverseT(ptr, ptr + (num - 1));
+}
+
+#endif /* MEM_FUNC_HPP */