How do I read and write CSV efficiently?

Reading and writing CSV files in C++ can be done using the standard file input/output operations. Using ``, you can open a CSV file, read its contents line by line, and extract data using string manipulation functions.

Here is an example of how to read from and write to a CSV file in C++:


#include 
#include 
#include 
#include 
#include 

void readCSV(const std::string& filename) {
    std::ifstream file(filename);
    std::string line;

    while (std::getline(file, line)) {
        std::stringstream ss(line);
        std::string item;
        std::vector<:string> row;

        while (std::getline(ss, item, ',')) {
            row.push_back(item);
        }

        // Process row data
        for (const auto& element : row) {
            std::cout << element << " ";
        }
        std::cout << std::endl;
    }
    file.close();
}

void writeCSV(const std::string& filename) {
    std::ofstream file(filename);
    file << "Name,Age,Location\n";
    file << "Alice,30,New York\n";
    file << "Bob,25,Los Angeles\n";
    file.close();
}

int main() {
    writeCSV("output.csv");
    readCSV("output.csv");
    return 0;
}

How do I read and write CSV efficiently?

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How do I read and write CSV efficiently?

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