Reading CSV Files with Standard C++
summary
Claims that ranges::split fails on quoted fields, because CSV permits commas, quotes and embedded newlines. Notes std::quoted is stream-only and returns strings not string_views, so it doesn't avoid allocations. Shows getline breaks when fields contain newline characters. Describes a practical approach: treat the file as a buffer of characters, use views to split then merge quoted segments back together, and handle multiple input files for real datasets (butterfly records) to compute trends without copying the whole file.
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