OBuffer.cpp

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#include <OBuffer.h>
#include <assert.h>
 
OBuffer::OBuffer() :
  precision_(8), buf_(0)
{
  new_buffer();
}
 
void OBuffer::new_buffer()
{
  ostream_ = std::make_unique<std::ostringstream>();
  // Typed view - memory is managed by Sortie:
  buf_ = static_cast<std::ostringstream *>(ostream_.get());
 
  buf_->setf(ios::scientific);
  buf_->precision(precision_);
}
 
void OBuffer::precision(int i)
{
  precision_ = i;
  buf_->precision(i);
}
 
int OBuffer::get_precision()
{
  return (int)buf_->precision();
}
/*! @brief Force l'ecriture sur disque des donnees dans le tampon Utilise l'implementation de la classe ofstream
 *
 * @return (Sortie&) *this
 */
Sortie& OBuffer::flush()
{
  return *this;
}
 
/*! @brief ajoute le caractere nul a la fin du buffer pour en faire une chaine de caracteres valide.
 *
 * len() renvoie la longueur du buffer, y compris le \0
 *   Voir Ecr_Fic_Par::syncfile()
 *
 */
void OBuffer::put_null_char()
{
  assert(! bin_); // Ca n'a pas de sens en binaire
  buf_->put('\0');
}
 
/*! @brief Renvoie un pointeur sur le debut du buffer.
 *
 */
const char* OBuffer::str()
{
  // Need a copy:
  string_ = std::string(buf_->str());
  return string_.c_str();
}
 
// Renvoie le nombre d'octets contenus dans le buffer.
int OBuffer::len()
{
  return (int)buf_->tellp();
}