]> git.buserror.net Git - polintos/scott/priv.git/blobdiff - lib/c++/stlport/num_get.cpp
Add STLport 5.1.4
[polintos/scott/priv.git] / lib / c++ / stlport / num_get.cpp
diff --git a/lib/c++/stlport/num_get.cpp b/lib/c++/stlport/num_get.cpp
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+/*
+ * Copyright (c) 1999
+ * Silicon Graphics Computer Systems, Inc.
+ *
+ * Copyright (c) 1999
+ * Boris Fomitchev
+ *
+ * This material is provided "as is", with absolutely no warranty expressed
+ * or implied. Any use is at your own risk.
+ *
+ * Permission to use or copy this software for any purpose is hereby granted
+ * without fee, provided the above notices are retained on all copies.
+ * Permission to modify the code and to distribute modified code is granted,
+ * provided the above notices are retained, and a notice that the code was
+ * modified is included with the above copyright notice.
+ *
+ */
+#include "stlport_prefix.h"
+
+#include <locale>
+#include <istream>
+#include <algorithm>
+
+_STLP_BEGIN_NAMESPACE
+_STLP_MOVE_TO_PRIV_NAMESPACE
+
+// __valid_grouping compares two strings, one representing the
+// group sizes encountered when reading an integer, and the other
+// representing the valid group sizes as returned by the numpunct
+// grouping() member function.  Both are interpreted right-to-left.
+// The grouping string is treated as if it were extended indefinitely
+// with its last value.  For a grouping to be valid, each term in
+// the first string must be equal to the corresponding term in the
+// second, except for the last, which must be less than or equal.
+
+// boris : this takes reversed first string !
+bool  _STLP_CALL
+__valid_grouping(const char * first1, const char * last1,
+                 const char * first2, const char * last2) {
+  if (first1 == last1 || first2 == last2) return true;
+
+  --last1; --last2;
+
+  while (first1 != last1) {
+    if (*last1 != *first2)
+      return false;
+    --last1;
+    if (first2 != last2) ++first2;
+  }
+
+  return *last1 <= *first2;
+}
+
+_STLP_DECLSPEC unsigned char _STLP_CALL __digit_val_table(unsigned __index) {
+  static const unsigned char __val_table[128] = {
+    0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
+    0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
+    0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
+    0, 1, 2, 3, 4, 5, 6, 7, 8, 9,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
+    0xFF,10,11,12,13,14,15,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
+    0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
+    0xFF,10,11,12,13,14,15,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
+    0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF
+  };
+
+  return __val_table[__index];
+}
+
+_STLP_DECLSPEC const char* _STLP_CALL __narrow_atoms()
+{ return "+-0xX"; }
+
+// index is actually a char
+
+#if !defined (_STLP_NO_WCHAR_T)
+
+// Similar, except return the character itself instead of the numeric
+// value.  Used for floating-point input.
+bool _STLP_CALL __get_fdigit(wchar_t& c, const wchar_t* digits) {
+  const wchar_t* p = find(digits, digits + 10, c);
+  if (p != digits + 10) {
+    c = (char)('0' + (p - digits));
+    return true;
+  }
+  else
+    return false;
+}
+
+bool _STLP_CALL __get_fdigit_or_sep(wchar_t& c, wchar_t sep,
+                                    const wchar_t * digits) {
+  if (c == sep) {
+    c = (char)',';
+    return true;
+  }
+  else
+    return __get_fdigit(c, digits);
+}
+
+#endif
+
+_STLP_MOVE_TO_STD_NAMESPACE
+
+#if !defined(_STLP_NO_FORCE_INSTANTIATE)
+//----------------------------------------------------------------------
+// Force instantiation of of num_get<>
+template class _STLP_CLASS_DECLSPEC istreambuf_iterator<char, char_traits<char> >;
+// template class num_get<char, const char*>;
+template class num_get<char, istreambuf_iterator<char, char_traits<char> > >;
+
+#  if !defined (_STLP_NO_WCHAR_T)
+template class _STLP_CLASS_DECLSPEC  istreambuf_iterator<wchar_t, char_traits<wchar_t> >;
+template class num_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > >;
+// template class num_get<wchar_t, const wchar_t*>;
+#  endif
+#endif
+
+_STLP_END_NAMESPACE
+
+// Local Variables:
+// mode:C++
+// End: