#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <assert.h>
#include <errno.h>
#include <string.h>

int main(int argc, char* argv[]) {
    FILE* missing_file = fopen(
            "some_folder/missing_file.txt", "w");

    if (missing_file != NULL) {
        fputc('A', missing_file);
        fclose(missing_file);
    }
    else {
        printf("Unable to open file, error %d:\n%s\n",
                errno, strerror(errno));
    }

    return EXIT_SUCCESS;
}
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