reactos/include/c++/stlport/stl/_stdexcept_base.c

   1 /*
   2  * Copyright (c) 1996,1997
   3  * Silicon Graphics Computer Systems, Inc.
   4  *
   5  * Copyright (c) 1999
   6  * Boris Fomitchev
   7  *
   8  * This material is provided "as is", with absolutely no warranty expressed
   9  * or implied. Any use is at your own risk.
  10  *
  11  * Permission to use or copy this software for any purpose is hereby granted
  12  * without fee, provided the above notices are retained on all copies.
  13  * Permission to modify the code and to distribute modified code is granted,
  14  * provided the above notices are retained, and a notice that the code was
  15  * modified is included with the above copyright notice.
  16  *
  17  */
  18
  19 __Named_exception::__Named_exception(const string& __str) {
  20   size_t __size = strlen(_STLP_PRIV __get_c_string(__str)) + 1;
  21   if (__size > _S_bufsize) {
  22     _M_name = __STATIC_CAST(char*, malloc(__size * sizeof(char)));
  23     if (!_M_name) {
  24       __size = _S_bufsize;
  25       _M_name = _M_static_name;
  26     }
  27     else {
  28       *(__REINTERPRET_CAST(size_t*, &_M_static_name[0])) = __size * sizeof(char);
  29     }
  30   }
  31   else {
  32     _M_name = _M_static_name;
  33   }
  34 #if !defined (_STLP_USE_SAFE_STRING_FUNCTIONS)
  35   strncpy(_M_name, _STLP_PRIV __get_c_string(__str), __size - 1);
  36   _M_name[__size - 1] = '\0';
  37 #else
  38   strncpy_s(_M_name, __size, _STLP_PRIV __get_c_string(__str), __size - 1);
  39 #endif
  40 }
  41
  42 __Named_exception::__Named_exception(const __Named_exception& __x) {
  43   size_t __size = strlen(__x._M_name) + 1;
  44   if (__size > _S_bufsize) {
  45     _M_name = __STATIC_CAST(char*, malloc(__size * sizeof(char)));
  46     if (!_M_name) {
  47       __size = _S_bufsize;
  48       _M_name = _M_static_name;
  49     }
  50     else {
  51       *(__REINTERPRET_CAST(size_t*, &_M_static_name[0])) = __size * sizeof(char);
  52     }
  53   }
  54   else {
  55     _M_name = _M_static_name;
  56   }
  57 #if !defined (_STLP_USE_SAFE_STRING_FUNCTIONS)
  58   strncpy(_M_name, __x._M_name, __size - 1);
  59   _M_name[__size - 1] = '\0';
  60 #else
  61   strncpy_s(_M_name, __size, __x._M_name, __size - 1);
  62 #endif
  63 }
  64
  65 __Named_exception& __Named_exception::operator = (const __Named_exception& __x) {
  66   size_t __size = strlen(__x._M_name) + 1;
  67   size_t __buf_size = _M_name != _M_static_name ? *(__REINTERPRET_CAST(size_t*, &_M_static_name[0])) : _S_bufsize;
  68   if (__size > __buf_size) {
  69     // Being here necessarily mean that we need to allocate a buffer:
  70     if (_M_name != _M_static_name) free(_M_name);
  71     _M_name = __STATIC_CAST(char*, malloc(__size * sizeof(char)));
  72     if (!_M_name) {
  73       __size = _S_bufsize;
  74       _M_name = _M_static_name;
  75     }
  76     else {
  77       *(__REINTERPRET_CAST(size_t*, &_M_static_name[0])) = __size * sizeof(char);
  78     }
  79   }
  80 #if !defined (_STLP_USE_SAFE_STRING_FUNCTIONS)
  81   strncpy(_M_name, __x._M_name, __size - 1);
  82   _M_name[__size - 1] = '\0';
  83 #else
  84   strncpy_s(_M_name, __size, __x._M_name, __size - 1);
  85 #endif
  86   return *this;
  87 }
  88
  89 __Named_exception::~__Named_exception() _STLP_NOTHROW_INHERENTLY {
  90   if (_M_name != _M_static_name)
  91     free(_M_name);
  92 }
  93
  94 const char* __Named_exception::what() const _STLP_NOTHROW_INHERENTLY
  95 { return _M_name; }