_num_put.c

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#if defined (_STLP_LONG_LONG)
typedef _STLP_LONG_LONG __max_int_t;
typedef unsigned _STLP_LONG_LONG __umax_int_t;
#else
typedef long __max_int_t;
typedef unsigned long __umax_int_t;
#endif

_STLP_DECLSPEC const char* _STLP_CALL __hex_char_table_lo();
_STLP_DECLSPEC const char* _STLP_CALL __hex_char_table_hi();

template <class _Integer>
inline char* _STLP_CALL
__write_decimal_backward(char* __ptr, _Integer __x, ios_base::fmtflags __flags, const __true_type& /* is_signed */) {
  const bool __negative = __x < 0 ;
  __max_int_t __temp = __x;
  __umax_int_t __utemp = __negative?-__temp:__temp;

  for (; __utemp != 0; __utemp /= 10)
    *--__ptr = (char)((int)(__utemp % 10) + '0');
  // put sign if needed or requested
  if (__negative)
    *--__ptr = '-';
  else if (__flags & ios_base::showpos)
    *--__ptr = '+';
  return __ptr;
}

template <class _Integer>
inline char* _STLP_CALL
__write_decimal_backward(char* __ptr, _Integer __x, ios_base::fmtflags __flags, const __false_type& /* is_signed */) {
  for (; __x != 0; __x /= 10)
    *--__ptr = (char)((int)(__x % 10) + '0');
  // put sign if requested
  if (__flags & ios_base::showpos)
    *--__ptr = '+';
  return __ptr;
}

template <class _Integer>
char* _STLP_CALL
__write_integer_backward(char* __buf, ios_base::fmtflags __flags, _Integer __x) {
  char* __ptr = __buf;

  if (__x == 0) {
    *--__ptr = '0';
    if ((__flags & ios_base::showpos) && ((__flags & (ios_base::oct | ios_base::hex)) == 0))
      *--__ptr = '+';
    // oct or hex base shall not be added to the 0 value (see '#' flag in C formating strings)
  }
  else {
    switch (__flags & ios_base::basefield) {
      case ios_base::oct:
        {
          __umax_int_t __temp = __x;
          // if the size of integer is less than 8, clear upper part
          if ( sizeof(__x) < 8  && sizeof(__umax_int_t) >= 8 )
            __temp &= 0xFFFFFFFF;

          for (; __temp != 0; __temp >>=3)
            *--__ptr = (char)((((unsigned)__temp)& 0x7) + '0');

          // put leading '0' if showbase is set
          if (__flags & ios_base::showbase)
            *--__ptr = '0';
        }
        break;
      case ios_base::hex:
        {
          const char* __table_ptr = (__flags & ios_base::uppercase) ?
            __hex_char_table_hi() : __hex_char_table_lo();
          __umax_int_t __temp = __x;
          // if the size of integer is less than 8, clear upper part
          if ( sizeof(__x) < 8  && sizeof(__umax_int_t) >= 8 )
            __temp &= 0xFFFFFFFF;

          for (; __temp != 0; __temp >>=4)
            *--__ptr = __table_ptr[((unsigned)__temp & 0xF)];

          if (__flags & ios_base::showbase) {
            *--__ptr = __table_ptr[16];
            *--__ptr = '0';
          }
        }
        break;
      //case ios_base::dec:
      default:
        {
#if defined(__HP_aCC) && (__HP_aCC == 1)
          bool _IsSigned = !((_Integer)-1 > 0);
          if (_IsSigned)
            __ptr = __write_decimal_backward(__ptr, __x, __flags, __true_type() );
          else
            __ptr = __write_decimal_backward(__ptr, __x, __flags, __false_type() );
#else
          typedef typename __bool2type<numeric_limits<_Integer>::is_signed>::_Ret _IsSigned;
          __ptr = __write_decimal_backward(__ptr, __x, __flags, _IsSigned());
#endif
        }
        break;
    }
  }

  // return pointer to beginning of the string
  return __ptr;
}

template <class _CharT, class _OutputIter, class _Integer>
_OutputIter _STLP_CALL
__do_put_integer(_OutputIter __s, ios_base& __f, _CharT __fill, _Integer __x) {
  // buffer size = number of bytes * number of digit necessary in the smallest Standard base (base 8, 3 digits/byte)
  //               plus the longest base representation '0x'
  // Do not use __buf_size to define __buf static buffer, some compilers (HP aCC) do not accept const variable as
  // the specification of a static buffer size.
  char __buf[sizeof(_Integer) * 3 + 2];
  const ptrdiff_t __buf_size = sizeof(__buf) / sizeof(char);
  ios_base::fmtflags __flags = __f.flags();
  char* __ibeg = __write_integer_backward((char*)__buf + __buf_size, __flags, __x);
  return __put_integer(__ibeg, (char*)__buf + __buf_size, __s, __f, __flags, __fill);
}

template <class _CharT, class _OutputIter>
_OutputIter _STLP_CALL
__do_put_bool(_OutputIter __s, ios_base& __f, _CharT __fill, bool __x) {
  const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__f.getloc());

  basic_string<_CharT, char_traits<_CharT>, allocator<_CharT> > __str = __x ? __np.truename() : __np.falsename();

  streamsize __wid = __f.width(0);
  if (__str.size() >= __STATIC_CAST(size_t, __wid))
    return _STLP_STD::copy(__str.begin(), __str.end(), __s);
  else {
    streamsize __pad = __wid - __str.size();
    ios_base::fmtflags __dir = __f.flags() & ios_base::adjustfield;

    if (__dir == ios_base::left) {
      __s = _STLP_STD::copy(__str.begin(), __str.end(), __s);
      return __fill_n(__s, __pad, __fill);
    }
    else /* covers right and internal padding */ {
      __s = __fill_n(__s, __pad, __fill);
      return _STLP_STD::copy(__str.begin(), __str.end(), __s);
    }
  }
}
_STLP_MOVE_TO_STD_NAMESPACE

//
// num_put<>
//

template <class _CharT, class _OutputIterator>
locale::id num_put<_CharT, _OutputIterator>::id;

#if !defined (_STLP_NO_BOOL)
template <class _CharT, class _OutputIter>
_OutputIter
num_put<_CharT, _OutputIter>::do_put(_OutputIter __s, ios_base& __f, _CharT __fill,
                                     bool __val) const {
  if (!(__f.flags() & ios_base::boolalpha))
    // 22.2.2.2.2.23: shall return do_put for int and not directly __do_put_integer.
    return do_put(__s, __f, __fill, __STATIC_CAST(long, __val));

  return _STLP_PRIV __do_put_bool(__s, __f, __fill, __val);
}
#endif

template <class _CharT, class _OutputIter>
_OutputIter
num_put<_CharT, _OutputIter>::do_put(_OutputIter __s, ios_base& __f, _CharT __fill,
                                     long __val) const
{ return _STLP_PRIV __do_put_integer(__s, __f, __fill, __val); }

template <class _CharT, class _OutputIter>
_OutputIter
num_put<_CharT, _OutputIter>::do_put(_OutputIter __s, ios_base& __f, _CharT __fill,
                                     unsigned long __val) const
{ return _STLP_PRIV __do_put_integer(__s, __f, __fill, __val); }

template <class _CharT, class _OutputIter>
_OutputIter
num_put<_CharT, _OutputIter>::do_put(_OutputIter __s, ios_base& __f, _CharT __fill,
                                     double __val) const
{ return _STLP_PRIV __do_put_float(__s, __f, __fill, __val); }

#if !defined (_STLP_NO_LONG_DOUBLE)
template <class _CharT, class _OutputIter>
_OutputIter
num_put<_CharT, _OutputIter>::do_put(_OutputIter __s, ios_base& __f, _CharT __fill,
                                     long double __val) const
{ return _STLP_PRIV __do_put_float(__s, __f, __fill, __val); }
#endif

#if defined (_STLP_LONG_LONG)
template <class _CharT, class _OutputIter>
_OutputIter
num_put<_CharT, _OutputIter>::do_put(_OutputIter __s, ios_base& __f, _CharT __fill,
                                     _STLP_LONG_LONG __val) const
{ return _STLP_PRIV __do_put_integer(__s, __f, __fill, __val); }

template <class _CharT, class _OutputIter>
_OutputIter
num_put<_CharT, _OutputIter>::do_put(_OutputIter __s, ios_base& __f, _CharT __fill,
                                     unsigned _STLP_LONG_LONG __val) const
{ return _STLP_PRIV __do_put_integer(__s, __f, __fill, __val); }
#endif /* _STLP_LONG_LONG */


// 22.2.2.2.2 Stage 1: "For conversion from void* the specifier is %p."
// This is not clear and I'm really don't follow this (below).
template <class _CharT, class _OutputIter>
_OutputIter
num_put<_CharT, _OutputIter>::do_put(_OutputIter __s, ios_base& __f, _CharT /*__fill*/,
                                     const void* __val) const {
  const ctype<_CharT>& __c_type = use_facet<ctype<_CharT> >(__f.getloc());
  ios_base::fmtflags __save_flags = __f.flags();

  __f.setf(ios_base::hex, ios_base::basefield);
  __f.setf(ios_base::showbase);
  __f.setf(ios_base::internal, ios_base::adjustfield);
  __f.width((sizeof(void*) * 2) + 2); // digits in pointer type plus '0x' prefix
  if ( __val == 0 ) {
    // base ('0x') not shown for null, but I really want to type it
    // for pointer. Print it first in this case.
    const char* __table_ptr = (__save_flags & ios_base::uppercase) ?
            _STLP_PRIV __hex_char_table_hi() : _STLP_PRIV __hex_char_table_lo();
    __s++ = __c_type.widen( '0' );
    __s++ = __c_type.widen( __table_ptr[16] );
    __f.width((sizeof(void*) * 2)); // digits in pointer type
  } else {
    __f.width((sizeof(void*) * 2) + 2); // digits in pointer type plus '0x' prefix
  }
#if defined (_STLP_MSVC)
#  pragma warning (push)
#  pragma warning (disable : 4311) //pointer truncation from 'const void*' to 'unsigned long'
#endif
  _OutputIter result =
#ifdef _STLP_LONG_LONG
    ( sizeof(void*) == sizeof(unsigned long) ) ?
#endif
    _STLP_PRIV __do_put_integer(__s, __f, __c_type.widen('0'), __REINTERPRET_CAST(unsigned long,__val))
#ifdef _STLP_LONG_LONG
      : /* ( sizeof(void*) == sizeof(unsigned _STLP_LONG_LONG) ) ? */
    _STLP_PRIV __do_put_integer(__s, __f, __c_type.widen('0'), __REINTERPRET_CAST(unsigned _STLP_LONG_LONG,__val))
#endif
        ;
#if defined (_STLP_MSVC)
#  pragma warning (pop)
#endif
  __f.flags(__save_flags);
  return result;
}

_STLP_END_NAMESPACE

#endif /* _STLP_NUM_PUT_C */

// Local Variables:
// mode:C++
// End: