ARROW-14842: [C++] Improve precision range error messages for Decimal #11773
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cyb70289
commented
Nov 25, 2021
cpp/src/arrow/type.cc
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It's mysterious why direct referencing kMinPrecision in Status::Invalid function leads to "undefined symbol" link error.
Maybe related to constexpr?
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It looks like we forgot to declare the constexpr in the .cc file. This compiles and links for me:
diff --git a/cpp/src/arrow/type.cc b/cpp/src/arrow/type.cc
index 7b761b3a6..fb872725f 100644
--- a/cpp/src/arrow/type.cc
+++ b/cpp/src/arrow/type.cc
@@ -823,6 +823,10 @@ int32_t DecimalType::DecimalSize(int32_t precision) {
// ----------------------------------------------------------------------
// Decimal128 type
+constexpr int32_t Decimal128Type::kMinPrecision;
+constexpr int32_t Decimal128Type::kMaxPrecision;
+constexpr int32_t Decimal128Type::kByteWidth;
+
Decimal128Type::Decimal128Type(int32_t precision, int32_t scale)
: DecimalType(type_id, 16, precision, scale) {
ARROW_CHECK_GE(precision, kMinPrecision);
@@ -831,9 +835,8 @@ Decimal128Type::Decimal128Type(int32_t precision, int32_t scale)
Result<std::shared_ptr<DataType>> Decimal128Type::Make(int32_t precision, int32_t scale) {
if (precision < kMinPrecision || precision > kMaxPrecision) {
- const auto min = kMinPrecision, max = kMaxPrecision;
- return Status::Invalid("Decimal precision out of range [", min, ", ", max,
- "]: ", precision);
+ return Status::Invalid("Decimal precision out of range [", kMinPrecision, ", ",
+ kMaxPrecision, "]: ", precision);
}
return std::make_shared<Decimal128Type>(precision, scale);
}
@@ -841,6 +844,10 @@ Result<std::shared_ptr<DataType>> Decimal128Type::Make(int32_t precision, int32_
// ----------------------------------------------------------------------
// Decimal256 type
+constexpr int32_t Decimal256Type::kMinPrecision;
+constexpr int32_t Decimal256Type::kMaxPrecision;
+constexpr int32_t Decimal256Type::kByteWidth;
+
Decimal256Type::Decimal256Type(int32_t precision, int32_t scale)
: DecimalType(type_id, 32, precision, scale) {
ARROW_CHECK_GE(precision, kMinPrecision);
@@ -849,9 +856,8 @@ Decimal256Type::Decimal256Type(int32_t precision, int32_t scale)
Result<std::shared_ptr<DataType>> Decimal256Type::Make(int32_t precision, int32_t scale) {
if (precision < kMinPrecision || precision > kMaxPrecision) {
- const auto min = kMinPrecision, max = kMaxPrecision;
- return Status::Invalid("Decimal precision out of range [", min, ", ", max,
- "]: ", precision);
+ return Status::Invalid("Decimal precision out of range [", kMinPrecision, ", ",
+ kMaxPrecision, "]: ", precision);
}
return std::make_shared<Decimal256Type>(precision, scale);
}
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This issue should have been fixed in C++17.
The workaround in http://ostack.cn/?qa=744640/ looks simpler.
Original post: https://stackoverflow.com/questions/40690260/undefined-reference-error-for-static-constexpr-member
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|
@nealrichardson , looks the RTools 35 job timed out |
lidavidm
approved these changes
Nov 29, 2021
cpp/src/arrow/type.cc
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It looks like we forgot to declare the constexpr in the .cc file. This compiles and links for me:
diff --git a/cpp/src/arrow/type.cc b/cpp/src/arrow/type.cc
index 7b761b3a6..fb872725f 100644
--- a/cpp/src/arrow/type.cc
+++ b/cpp/src/arrow/type.cc
@@ -823,6 +823,10 @@ int32_t DecimalType::DecimalSize(int32_t precision) {
// ----------------------------------------------------------------------
// Decimal128 type
+constexpr int32_t Decimal128Type::kMinPrecision;
+constexpr int32_t Decimal128Type::kMaxPrecision;
+constexpr int32_t Decimal128Type::kByteWidth;
+
Decimal128Type::Decimal128Type(int32_t precision, int32_t scale)
: DecimalType(type_id, 16, precision, scale) {
ARROW_CHECK_GE(precision, kMinPrecision);
@@ -831,9 +835,8 @@ Decimal128Type::Decimal128Type(int32_t precision, int32_t scale)
Result<std::shared_ptr<DataType>> Decimal128Type::Make(int32_t precision, int32_t scale) {
if (precision < kMinPrecision || precision > kMaxPrecision) {
- const auto min = kMinPrecision, max = kMaxPrecision;
- return Status::Invalid("Decimal precision out of range [", min, ", ", max,
- "]: ", precision);
+ return Status::Invalid("Decimal precision out of range [", kMinPrecision, ", ",
+ kMaxPrecision, "]: ", precision);
}
return std::make_shared<Decimal128Type>(precision, scale);
}
@@ -841,6 +844,10 @@ Result<std::shared_ptr<DataType>> Decimal128Type::Make(int32_t precision, int32_
// ----------------------------------------------------------------------
// Decimal256 type
+constexpr int32_t Decimal256Type::kMinPrecision;
+constexpr int32_t Decimal256Type::kMaxPrecision;
+constexpr int32_t Decimal256Type::kByteWidth;
+
Decimal256Type::Decimal256Type(int32_t precision, int32_t scale)
: DecimalType(type_id, 32, precision, scale) {
ARROW_CHECK_GE(precision, kMinPrecision);
@@ -849,9 +856,8 @@ Decimal256Type::Decimal256Type(int32_t precision, int32_t scale)
Result<std::shared_ptr<DataType>> Decimal256Type::Make(int32_t precision, int32_t scale) {
if (precision < kMinPrecision || precision > kMaxPrecision) {
- const auto min = kMinPrecision, max = kMaxPrecision;
- return Status::Invalid("Decimal precision out of range [", min, ", ", max,
- "]: ", precision);
+ return Status::Invalid("Decimal precision out of range [", kMinPrecision, ", ",
+ kMaxPrecision, "]: ", precision);
}
return std::make_shared<Decimal256Type>(precision, scale);
}
Member
I'm not sure why that would be, but it seems to have happened again. |
Decimal128: "Invalid: Decimal precision out of range [1, 38]: 0" Decimal256: "Invalid: Decimal precision out of range [1, 76]: 100"
|
Benchmark runs are scheduled for baseline = debf48d and contender = 29f98dd. 29f98dd is a master commit associated with this PR. Results will be available as each benchmark for each run completes. |
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Decimal128:
Invalid: Decimal precision out of range [1, 38]: 0Decimal256:
Invalid: Decimal precision out of range [1, 76]: 100