string.cpp

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/*
 * $Id$
 *
 * Author: David Fournier
 * Copyright (c) 2008-2012 Regents of the University of California
 */
#include <fvar.hpp>
#include <string.h>
#include <stdlib.h>

void adstring::allocate(const size_t sz)
{
  shape = new adstring_shape(sz);
  s =  new unsigned char[sz+1];
  if (!s) {
    cerr << "Error allocating memory for adstring" << endl;
    exit(1);
  }
  s--;
}

void adstring::deallocate()
{
  if (shape)
  {
    delete shape;
    shape=0;
  }
  if (s)
  {
    s++;

    delete [] s;
    s=0;
  }
}
adstring::operator unsigned char*()
{
  return (unsigned char*)s + 1;
}

adstring::operator char*()
{
  return (char*)(s + 1);
}

adstring::operator const unsigned char*() const
{
  return (const unsigned char*)s + 1;
}

adstring::operator const char*() const
{
  return (const char*)(s + 1);
}

size_t adstring::size() const
{
  return s ? strlen((char*)(s+1)) : 0;
}

size_t adstring::buff_size() const
{
  return shape->size();
}

ostream& operator<<(ostream& c, const adstring& t)
{
  for (unsigned int i = 1; i <= t.size(); i++)
  {
  #if (defined __ZTC__) || (defined __NDPX__)
    c << (char)(t.s)[i];
  #else
    c << (t.s)[i];
  #endif
  }
  return (c);
}

adstring& adstring::operator=(const char t)
{
  *this = adstring(t);
  return *this;
}