text: /*----------------------------------------------------------------------------
      Copyright (c) 2017 Inhabited Type LLC.
  
      All rights reserved.
  
      Redistribution and use in source and binary forms, with or without
      modification, are permitted provided that the following conditions
      are met:
  
      1. Redistributions of source code must retain the above copyright
         notice, this list of conditions and the following disclaimer.
  
      2. Redistributions in binary form must reproduce the above copyright
         notice, this list of conditions and the following disclaimer in the
         documentation and/or other materials provided with the distribution.
  
      3. Neither the name of the author nor the names of his contributors
         may be used to endorse or promote products derived from this software
         without specific prior written permission.
  
      THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND ANY EXPRESS
      OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
      WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
      DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
      ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
      STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
      ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
      POSSIBILITY OF SUCH DAMAGE.
    ----------------------------------------------------------------------------*/
  
  #include <string.h>
  #include <caml/mlvalues.h>
  #include <caml/bigarray.h>
  
  void
  bigstringaf_blit_to_bytes(value vsrc, value vsrc_off, value vdst, value vdst_off, value vlen)
  {
      void *src = ((char *)Caml_ba_data_val(vsrc)) + Long_val(vsrc_off),
           *dst = ((char *)String_val(vdst))       + Long_val(vdst_off);
      size_t len = Long_val(vlen);
      memcpy(dst, src, len);
  }
  
  void
  bigstringaf_blit_to_bigstring(value vsrc, value vsrc_off, value vdst, value vdst_off, value vlen)
  {
      void *src = ((char *)Caml_ba_data_val(vsrc)) + Long_val(vsrc_off),
           *dst = ((char *)Caml_ba_data_val(vdst)) + Long_val(vdst_off);
      size_t len = Long_val(vlen);
      memmove(dst, src, len);
  }
  
  void
  bigstringaf_blit_from_bytes(value vsrc, value vsrc_off, value vdst, value vdst_off, value vlen)
  {
      void *src = ((char *)String_val(vsrc))       + Long_val(vsrc_off),
           *dst = ((char *)Caml_ba_data_val(vdst)) + Long_val(vdst_off);
      size_t len = Long_val(vlen);
      memcpy(dst, src, len);
  }
  
  CAMLprim value
  bigstringaf_memcmp_bigstring(value vba1, value vba1_off, value vba2, value vba2_off, value vlen)
  {
      void *ba1 = ((char *)Caml_ba_data_val(vba1)) + Long_val(vba1_off),
           *ba2 = ((char *)Caml_ba_data_val(vba2)) + Long_val(vba2_off);
      size_t len = Long_val(vlen);
  
      int result = memcmp(ba1, ba2, len);
      return Val_int(result);
  }
  
  CAMLprim value
  bigstringaf_memcmp_string(value vba, value vba_off, value vstr, value vstr_off, value vlen)
  {
      void *buf1 = ((char *)Caml_ba_data_val(vba)) + Long_val(vba_off),
           *buf2 = ((char *)String_val(vstr))      + Long_val(vstr_off);
      size_t len = Long_val(vlen);
  
      int result = memcmp(buf1, buf2, len);
      return Val_int(result);
  }
  