Function fgetc_unlocked

examples/stdlib.c:3596–3615

}

static int fgetc_unlocked(FILE *stream)
{
    if (stdio_stream_read_init(stream) < 0)
        return EOF;
    if (stream->unget != EOF)
    {
        int c = stream->unget;
        stream->unget = EOF;
        return c;
    }
    if (stream->read_ptr == NULL)
    {
        char buf[1];
        if (stdio_stream_read_buf(stream, buf, buf+1) < 0)
            return EOF;
        return (int)buf[0];
    }
    char c = *stream->read_ptr++;
    return (int)c;
}

static int fgetc(FILE *stream)
{