/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8                               :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
│                                                                              │
│ Permission to use, copy, modify, and/or distribute this software for         │
│ any purpose with or without fee is hereby granted, provided that the         │
│ above copyright notice and this permission notice appear in all copies.      │
│                                                                              │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
│ PERFORMANCE OF THIS SOFTWARE.                                                │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/math.h"
#include "libc/mem/mem.h"
#include "libc/x/x.h"
#include "third_party/gdtoa/gdtoa.h"
#if !(LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024)

/**
 * Converts long double to string the easy way.
 *
 * @return string that needs to be free'd
 */
char *xdtoal(long double d) {
  char *p;
#if LDBL_MANT_DIG == 113
  p = xmalloc(64);
  g_Qfmt_p(p, &d, 16, 64, NIK(2, 0, 0));
#elif LDBL_MANT_DIG == 64
  p = xmalloc(32);
  g_xfmt_p(p, &d, 16, 32, NIK(2, 0, 0));
#else
#error "unsupported long double"
#endif
  return p;
}

#endif /* long double is long */