#include <stdio.h>
#include <stdlib.h>
#include <string.h>

[[nodiscard]] char *f_getline(char buffer[static 1], int bytes, FILE *fptr) {
    char *r = fgets(buffer, bytes, fptr);
    if (r) {
        auto pos = strchr(r, '\n');
        if (pos) {
            *pos = '\0';
            return r;
        }
    }
    return nullptr;
}

int main(void) {
    static constexpr int bytes = 1024 * 4;
    char buffer[bytes];
    printf("Enter text: ");
    if (f_getline(buffer, bytes - 1, stdin)) {
        printf("%s\n", buffer);
    }
    // must capture return value
    // f_getline(buffer, bytes -1 , stdin);
    return EXIT_SUCCESS;
}