michael@0: /*
michael@0:  * Copyright (c) 1999
michael@0:  * Silicon Graphics Computer Systems, Inc.
michael@0:  *
michael@0:  * Copyright (c) 1999
michael@0:  * Boris Fomitchev
michael@0:  *
michael@0:  * This material is provided "as is", with absolutely no warranty expressed
michael@0:  * or implied. Any use is at your own risk.
michael@0:  *
michael@0:  * Permission to use or copy this software for any purpose is hereby granted
michael@0:  * without fee, provided the above notices are retained on all copies.
michael@0:  * Permission to modify the code and to distribute modified code is granted,
michael@0:  * provided the above notices are retained, and a notice that the code was
michael@0:  * modified is included with the above copyright notice.
michael@0:  *
michael@0:  */
michael@0: #include "stlport_prefix.h"
michael@0: 
michael@0: #include <locale>
michael@0: #include <istream>
michael@0: #include <algorithm>
michael@0: 
michael@0: _STLP_BEGIN_NAMESPACE
michael@0: _STLP_MOVE_TO_PRIV_NAMESPACE
michael@0: 
michael@0: // __valid_grouping compares two strings, one representing the
michael@0: // group sizes encountered when reading an integer, and the other
michael@0: // representing the valid group sizes as returned by the numpunct
michael@0: // grouping() member function.  Both are interpreted right-to-left.
michael@0: // The grouping string is treated as if it were extended indefinitely
michael@0: // with its last value.  For a grouping to be valid, each term in
michael@0: // the first string must be equal to the corresponding term in the
michael@0: // second, except for the last, which must be less than or equal.
michael@0: 
michael@0: // boris : this takes reversed first string !
michael@0: bool  _STLP_CALL
michael@0: __valid_grouping(const char * first1, const char * last1,
michael@0:                  const char * first2, const char * last2) {
michael@0:   if (first1 == last1 || first2 == last2) return true;
michael@0: 
michael@0:   --last1; --last2;
michael@0: 
michael@0:   while (first1 != last1) {
michael@0:     if (*last1 != *first2)
michael@0:       return false;
michael@0:     --last1;
michael@0:     if (first2 != last2) ++first2;
michael@0:   }
michael@0: 
michael@0:   return *last1 <= *first2;
michael@0: }
michael@0: 
michael@0: _STLP_DECLSPEC unsigned char _STLP_CALL __digit_val_table(unsigned __index) {
michael@0:   static const unsigned char __val_table[128] = {
michael@0:     0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
michael@0:     0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
michael@0:     0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
michael@0:     0, 1, 2, 3, 4, 5, 6, 7, 8, 9,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
michael@0:     0xFF,10,11,12,13,14,15,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
michael@0:     0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
michael@0:     0xFF,10,11,12,13,14,15,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
michael@0:     0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF
michael@0:   };
michael@0: 
michael@0:   return __val_table[__index];
michael@0: }
michael@0: 
michael@0: _STLP_DECLSPEC const char* _STLP_CALL __narrow_atoms()
michael@0: { return "+-0xX"; }
michael@0: 
michael@0: // index is actually a char
michael@0: 
michael@0: #if !defined (_STLP_NO_WCHAR_T)
michael@0: 
michael@0: // Similar, except return the character itself instead of the numeric
michael@0: // value.  Used for floating-point input.
michael@0: bool _STLP_CALL __get_fdigit(wchar_t& c, const wchar_t* digits) {
michael@0:   const wchar_t* p = find(digits, digits + 10, c);
michael@0:   if (p != digits + 10) {
michael@0:     c = (char)('0' + (p - digits));
michael@0:     return true;
michael@0:   }
michael@0:   else
michael@0:     return false;
michael@0: }
michael@0: 
michael@0: bool _STLP_CALL __get_fdigit_or_sep(wchar_t& c, wchar_t sep,
michael@0:                                     const wchar_t * digits) {
michael@0:   if (c == sep) {
michael@0:     c = (char)',';
michael@0:     return true;
michael@0:   }
michael@0:   else
michael@0:     return __get_fdigit(c, digits);
michael@0: }
michael@0: 
michael@0: #endif
michael@0: 
michael@0: _STLP_MOVE_TO_STD_NAMESPACE
michael@0: 
michael@0: #if !defined(_STLP_NO_FORCE_INSTANTIATE)
michael@0: //----------------------------------------------------------------------
michael@0: // Force instantiation of num_get<>
michael@0: template class _STLP_CLASS_DECLSPEC istreambuf_iterator<char, char_traits<char> >;
michael@0: // template class num_get<char, const char*>;
michael@0: template class num_get<char, istreambuf_iterator<char, char_traits<char> > >;
michael@0: 
michael@0: #  if !defined (_STLP_NO_WCHAR_T)
michael@0: template class _STLP_CLASS_DECLSPEC  istreambuf_iterator<wchar_t, char_traits<wchar_t> >;
michael@0: template class num_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > >;
michael@0: // template class num_get<wchar_t, const wchar_t*>;
michael@0: #  endif
michael@0: #endif
michael@0: 
michael@0: _STLP_END_NAMESPACE
michael@0: 
michael@0: // Local Variables:
michael@0: // mode:C++
michael@0: // End: