std::fgetc, std::getc

#include <cstdio>
#include <iostream>
                                                                                                                
using std::FILE,
    std::fopen,
    std::fclose,
    std::fgetc,
    std::getc,
    std::rewind,
    std::cerr;

int main(){
    FILE* f = fopen("ztext.txt", "a+");
    int r = 0;
    cerr << "fgetc:\n";
    while((r = fgetc(f)) != EOF){
        cerr << (char)r << "\n";
    }
    rewind(f);
    r = 0;
    cerr << "getc:\n";
    while((r = getc(f)) != EOF){
        cerr << (char)r << "\n";
    }
    fclose(f);
    return 0;
}