Function printf_put_char

examples/stdlib.c:3812–3819

#define PRINTF_FLAG_64          0x1000

static __attribute__((__noinline__)) size_t printf_put_char(char *str,
    size_t size, size_t idx, char c)
{
    if (str == NULL || idx >= size)
        return idx+1;
    str[idx++] = c;
    return idx;
}

static __attribute__((__noinline__)) size_t printf_put_num(char *str,
    size_t size, size_t idx, unsigned flags, size_t width, size_t precision,