* config/locale/c_locale_generic.cc: Check errno for ERANGE

[pf3gnuchains/gcc-fork.git] / libstdc++-v3 / config / locale / c_locale_generic.cc

diff --git a/libstdc++-v3/config/locale/c_locale_generic.cc b/libstdc++-v3/config/locale/c_locale_generic.cc
index 46fdc28..0d601ae 100644 (file)
--- a/libstdc++-v3/config/locale/c_locale_generic.cc
+++ b/libstdc++-v3/config/locale/c_locale_generic.cc
@@ -1,6 +1,6 @@
 // Wrapper for underlying C-language localization -*- C++ -*-
 
 // Wrapper for underlying C-language localization -*- C++ -*-
 

-// Copyright (C) 2001 Free Software Foundation, Inc.
+// Copyright (C) 2001, 2002 Free Software Foundation, Inc.

 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the


@@ -37,6 +37,149 @@
 
 namespace std 
 {
 
 namespace std 
 {

+  // Specializations for all types used in num_get.
+  template<>
+    void
+    __convert_to_v(const char* __s, long& __v, ios_base::iostate& __err, 
+                  const __c_locale&, int __base)
+    {
+      if (!(__err & ios_base::failbit))
+      {
+       char* __sanity;
+       errno = 0;
+       long __l = strtol(__s, &__sanity, __base);
+       if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
+         __v = __l;
+       else
+         __err |= ios_base::failbit;
+      }
+    }
+
+  template<>
+    void
+    __convert_to_v(const char* __s, unsigned long& __v, 
+                  ios_base::iostate& __err, const __c_locale&, int __base)
+    {
+      if (!(__err & ios_base::failbit))
+       {
+         char* __sanity;
+         errno = 0;
+         unsigned long __ul = strtoul(__s, &__sanity, __base);
+          if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
+           __v = __ul;
+         else
+           __err |= ios_base::failbit;
+       }
+    }
+
+#ifdef _GLIBCPP_USE_LONG_LONG
+  template<>
+    void
+    __convert_to_v(const char* __s, long long& __v, ios_base::iostate& __err, 
+                  const __c_locale&, int __base)
+    {
+      if (!(__err & ios_base::failbit))
+       {
+         char* __sanity;
+         errno = 0;
+         long long __ll = strtoll(__s, &__sanity, __base);
+          if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
+           __v = __ll;
+         else
+           __err |= ios_base::failbit;
+       }
+    }
+
+  template<>
+    void
+    __convert_to_v(const char* __s, unsigned long long& __v, 
+                  ios_base::iostate& __err, const __c_locale&, int __base)
+    {
+      if (!(__err & ios_base::failbit))
+       {      
+         char* __sanity;
+         errno = 0;
+         unsigned long long __ull = strtoull(__s, &__sanity, __base);
+          if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
+           __v = __ull;
+         else
+           __err |= ios_base::failbit;
+       }  
+    }
+#endif
+
+  template<>
+    void
+    __convert_to_v(const char* __s, float& __v, ios_base::iostate& __err, 
+                  const __c_locale&, int)            
+    {
+      if (!(__err & ios_base::failbit))
+       {
+         // Assumes __s formatted for "C" locale.
+         const char* __old = setlocale(LC_ALL, "C");
+         char* __sanity;
+         errno = 0;
+#ifdef _GLIBCPP_USE_C99
+         float __f = strtof(__s, &__sanity);
+#else
+         float __f = static_cast<float>(strtod(__s, &__sanity));
+#endif
+          if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
+           __v = __f;
+         else
+           __err |= ios_base::failbit;
+         setlocale(LC_ALL, __old);
+       }
+    }
+
+  template<>
+    void
+    __convert_to_v(const char* __s, double& __v, ios_base::iostate& __err, 
+                  const __c_locale&, int) 
+    {
+      if (!(__err & ios_base::failbit))
+       {
+         // Assumes __s formatted for "C" locale.
+         const char* __old = setlocale(LC_ALL, "C");
+         char* __sanity;
+         errno = 0;
+         double __d = strtod(__s, &__sanity);
+          if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
+           __v = __d;
+         else
+           __err |= ios_base::failbit;
+         setlocale(LC_ALL, __old);
+       }
+    }
+
+  template<>
+    void
+    __convert_to_v(const char* __s, long double& __v, 
+                  ios_base::iostate& __err, const __c_locale&, int) 
+    {
+      if (!(__err & ios_base::failbit))
+       {
+         // Assumes __s formatted for "C" locale.
+         const char* __old = setlocale(LC_ALL, "C");
+#if defined(_GLIBCPP_USE_C99) && !defined(__hpux)
+         char* __sanity;
+         errno = 0;
+         long double __ld = strtold(__s, &__sanity);
+          if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
+           __v = __ld;
+#else
+         typedef char_traits<char>::int_type int_type;
+         long double __ld;
+         int __p = sscanf(__s, "%Lf", &__ld);
+         if (__p && static_cast<int_type>(__p) != char_traits<char>::eof())
+           __v = __ld;
+#endif
+         else
+           __err |= ios_base::failbit;
+         setlocale(LC_ALL, __old);
+       }
+    }
+

   void
   locale::facet::_S_create_c_locale(__c_locale& __cloc, const char*)
   { __cloc = NULL; }
   void
   locale::facet::_S_create_c_locale(__c_locale& __cloc, const char*)
   { __cloc = NULL; }