emkornfield commented on a change in pull request #10823:
URL: https://github.com/apache/arrow/pull/10823#discussion_r679531328
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File path: cpp/src/arrow/util/decimal.cc
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@@ -528,29 +527,33 @@ Status Decimal128::FromString(const util::string_view& s,
Decimal128* out,
int32_t parsed_scale = 0;
if (dec.has_exponent) {
auto adjusted_exponent = dec.exponent;
- auto len = static_cast<int32_t>(significant_digits);
- parsed_scale = -adjusted_exponent + len - 1;
+ parsed_scale =
+ -adjusted_exponent +
static_cast<int32_t>(dec.fractional_digits.size());
} else {
parsed_scale = static_cast<int32_t>(dec.fractional_digits.size());
}
if (out != nullptr) {
- std::array<uint64_t, 2> little_endian_array = {0, 0};
+ static_assert(Decimal::kBitWidth % 64 == 0, "decimal bit-width not a
multiple of 64");
+ std::array<uint64_t, Decimal::kBitWidth / 64> little_endian_array = {0, 0};
Review comment:
I think just {0} works here?
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