S390: For zero, let is_power_of_two() return false
This fixes a minor issue with the helper function is_power_of_two(), which returned non-zero ("true") if the argument was zero. This led to a wrong decision when passing a zero-sized struct in an inferior function call. gdb/ChangeLog: * s390-linux-tdep.c (is_power_of_two): Add comment. Return false if the argument is zero.
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2015-04-27 Andreas Arnez <arnez@linux.vnet.ibm.com>
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* s390-linux-tdep.c (is_power_of_two): Add comment. Return
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false if the argument is zero.
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2015-04-27 Pierre-Marie de Rodat <derodat@adacore.com>
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* ada-lang.c (template_to_static_fixed_type): Return input type
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@ -2484,11 +2484,12 @@ is_float_like (struct type *type)
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|| is_float_singleton (type));
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}
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/* Determine whether N is a power of two. */
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static int
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is_power_of_two (unsigned int n)
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{
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return ((n & (n - 1)) == 0);
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return n && ((n & (n - 1)) == 0);
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}
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/* Return non-zero if TYPE should be passed as a pointer to a copy,
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