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ab0fed1b91
- In ruler show the current line number as a percentage of the total lines - Link macro for hyperlink - Add showfilename set option - Fix undefined string comparison - Replace Clang-only __builtin_is_aligned with C code - Use memmove to realign buffers
21 lines
579 B
C
21 lines
579 B
C
--- common/mem.h.orig 2023-09-25 08:47:42 UTC
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+++ common/mem.h
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@@ -212,6 +212,18 @@ p2roundup(size_t n)
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return (n);
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}
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+/*
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+ * is_aligned --
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+ * Determine whether the program can safely read an object with an
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+ * alignment requirement from ptr.
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+ *
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+ * See also: https://clang.llvm.org/docs/LanguageExtensions.html#alignment-builtins
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+ */
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+static __inline int
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+is_aligned(void *ptr, size_t alignment) {
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+ return ((uintptr_t)ptr % alignment) == 0;
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+}
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+
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/* Additional TAILQ helper. */
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#define TAILQ_ENTRY_ISVALID(elm, field) \
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((elm)->field.tqe_prev != NULL)
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