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