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Fix uninitialized-variable warning.

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In passing, add an Assert defending the presumption that bytes_left
is positive to start with.  (I'm not exactly convinced that using an
unsigned type was such a bright thing here, but let's at least do
this much.)
This commit is contained in:
Tom Lane 2014-11-25 15:16:49 -05:00
parent aedccb1f6f
commit d934a05234
1 changed files with 4 additions and 2 deletions
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4
src/backend/utils/misc/guc.c
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@ -8741,9 +8741,10 @@ SerializeGUCState(Size maxsize, char *start_address)
Size actual_size;
Size bytes_left;
int i;
int i_role;
int i_role = -1;
/* Reserve space for saving the actual size of the guc state */
Assert(maxsize > sizeof(actual_size));
curptr = start_address + sizeof(actual_size);
bytes_left = maxsize - sizeof(actual_size);
@ -8759,6 +8760,7 @@ SerializeGUCState(Size maxsize, char *start_address)
else
serialize_variable(&curptr, &bytes_left, guc_variables[i]);
}
if (i_role >= 0)
serialize_variable(&curptr, &bytes_left, guc_variables[i_role]);
/* Store actual size without assuming alignment of start_address. */