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string: Fix string/tst-memmove-overflow to compile with GCC 7
GCC 8 relaxed what kind of expressions can be used in initializers, and the previous use of static const variables relied on that. Switch to wide (non-int) enum constants instead, which is another GCC extension that is more widely implemented. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
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@ -42,11 +42,11 @@ IMPL (memmove, 1)
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/* Size of the part of the allocation which is not shared, at the
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start and the end of the overall allocation. 4 MiB. */
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static const size_t unshared_size = 4U << 20;
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enum { unshared_size = (size_t) 4U << 20 };
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/* The allocation is 2 GiB plus 8 MiB. This should work with all page
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sizes that occur in practice. */
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static const size_t allocation_size = (2U << 30) + 2 * unshared_size;
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enum { allocation_size = ((size_t) 2U << 30) + 2 * unshared_size };
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/* Compute the expected byte at the given index. This is used to
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produce a non-repeating pattern. */
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