diff options
Diffstat (limited to 'src/backend/utils/adt/numeric.c')
| -rw-r--r-- | src/backend/utils/adt/numeric.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/backend/utils/adt/numeric.c b/src/backend/utils/adt/numeric.c index 7ce41b78888..1bfa29e1b28 100644 --- a/src/backend/utils/adt/numeric.c +++ b/src/backend/utils/adt/numeric.c @@ -4769,7 +4769,9 @@ set_var_from_var(NumericVar *value, NumericVar *dest) newbuf = digitbuf_alloc(value->ndigits + 1); newbuf[0] = 0; /* spare digit for rounding */ - memcpy(newbuf + 1, value->digits, value->ndigits * sizeof(NumericDigit)); + if (value->ndigits > 0) /* else value->digits might be null */ + memcpy(newbuf + 1, value->digits, + value->ndigits * sizeof(NumericDigit)); digitbuf_free(dest->buf); @@ -5090,8 +5092,9 @@ make_result(NumericVar *var) result->choice.n_long.n_weight = weight; } - memcpy(NUMERIC_DIGITS(result), digits, n * sizeof(NumericDigit)); Assert(NUMERIC_NDIGITS(result) == n); + if (n > 0) + memcpy(NUMERIC_DIGITS(result), digits, n * sizeof(NumericDigit)); /* Check for overflow of int16 fields */ if (NUMERIC_WEIGHT(result) != weight || |