Fractions in binary file

main.cpp

#include <iostream>
#include "main.h"

int main() {
    FILE* file;

    if (const auto path = "data.bin"; fopen_s(&file, path, "wb+") == 0) {
        constexpr Fraction fractions[] = {
            {2, 3},
            {1, 2},
            { 3, 5},
        };

        fwrite(fractions, sizeof(fractions), 1, file);

        fseek(file, 0, SEEK_SET);

        Fraction read[3];

        fread(read, sizeof(read), 1, file);

        printFractionArray(read, 3);

        fclose(file);
    }
}

main.h

#ifndef HW44_MAIN_H
#define HW44_MAIN_H

struct Fraction {
    int numerator;
    int denominator;

    void print() const {
        std::cout << numerator << "/" << denominator << std::endl;
    }
};

inline void printFractionArray(Fraction frac[], size_t length) {
    for (size_t i = 0; i < length; i++) {
        frac[i].print();
    }
}

#endif //HW44_MAIN_H