bkietz commented on a change in pull request #9294:
URL: https://github.com/apache/arrow/pull/9294#discussion_r566363820
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File path: cpp/src/arrow/type_traits.h
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@@ -929,6 +929,46 @@ static inline bool is_fixed_width(Type::type type_id) {
return is_primitive(type_id) || is_dictionary(type_id) ||
is_fixed_size_binary(type_id);
}
+static inline int bit_width(Type::type type_id) {
+ switch (type_id) {
+ case Type::BOOL:
+ return 1;
+ case Type::UINT8:
+ case Type::INT8:
+ return 8;
+ case Type::UINT16:
+ case Type::INT16:
+ return 16;
+ case Type::UINT32:
+ case Type::INT32:
+ case Type::DATE32:
+ case Type::TIME32:
+ return 32;
+ case Type::UINT64:
+ case Type::INT64:
+ case Type::DATE64:
+ case Type::TIME64:
+ case Type::TIMESTAMP:
+ case Type::DURATION:
+ return 64;
+
+ case Type::HALF_FLOAT:
+ return 16;
+ case Type::FLOAT:
+ return 32;
+ case Type::DOUBLE:
+ return 64;
+
+ case Type::INTERVAL_MONTHS:
+ return 32;
+ case Type::INTERVAL_DAY_TIME:
+ return 64;
+ default:
Review comment:
Alright, will do
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