edponce commented on a change in pull request #11064:
URL: https://github.com/apache/arrow/pull/11064#discussion_r700687522
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File path: cpp/src/arrow/util/value_parsing.h
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@@ -273,6 +273,96 @@ inline bool ParseUnsigned(const char* s, size_t length,
uint64_t* out) {
#undef PARSE_UNSIGNED_ITERATION
#undef PARSE_UNSIGNED_ITERATION_LAST
+#define PARSE_HEX_ITERATION(C_TYPE) \
+ if (length > 0) { \
Review comment:
I suggest to make this a function. The use of macros is undesired in the
general case.
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