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<h1>secblock.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// secblock.h - written and placed in the public domain by Wei Dai</span>
<a name="l00002"></a>00002
<a name="l00003"></a>00003 <span class="preprocessor">#ifndef CRYPTOPP_SECBLOCK_H</span>
<a name="l00004"></a>00004 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_SECBLOCK_H</span>
<a name="l00005"></a>00005 <span class="preprocessor"></span>
<a name="l00006"></a>00006 <span class="preprocessor">#include "config.h"</span>
<a name="l00007"></a>00007 <span class="preprocessor">#include "misc.h"</span>
<a name="l00008"></a>00008 <span class="preprocessor">#include <assert.h></span>
<a name="l00009"></a>00009
<a name="l00010"></a>00010 <span class="preprocessor">#if defined(CRYPTOPP_MEMALIGN_AVAILABLE) || defined(CRYPTOPP_MM_MALLOC_AVAILABLE) || defined(QNX)</span>
<a name="l00011"></a>00011 <span class="preprocessor"></span><span class="preprocessor"> #include <malloc.h></span>
<a name="l00012"></a>00012 <span class="preprocessor">#else</span>
<a name="l00013"></a>00013 <span class="preprocessor"></span><span class="preprocessor"> #include <stdlib.h></span>
<a name="l00014"></a>00014 <span class="preprocessor">#endif</span>
<a name="l00015"></a>00015 <span class="preprocessor"></span>
<a name="l00016"></a>00016 NAMESPACE_BEGIN(CryptoPP)
<a name="l00017"></a>00017
<a name="l00018"></a>00018 <span class="comment">// ************** secure memory allocation ***************</span>
<a name="l00019"></a>00019
<a name="l00020"></a>00020 template<class T>
<a name="l00021"></a><a class="code" href="class_allocator_base.html">00021</a> class <a class="code" href="class_allocator_base.html">AllocatorBase</a>
<a name="l00022"></a>00022 {
<a name="l00023"></a>00023 <span class="keyword">public</span>:
<a name="l00024"></a>00024 <span class="keyword">typedef</span> T value_type;
<a name="l00025"></a>00025 <span class="keyword">typedef</span> <span class="keywordtype">size_t</span> size_type;
<a name="l00026"></a>00026 <span class="preprocessor">#ifdef CRYPTOPP_MSVCRT6</span>
<a name="l00027"></a>00027 <span class="preprocessor"></span> <span class="keyword">typedef</span> ptrdiff_t difference_type;
<a name="l00028"></a>00028 <span class="preprocessor">#else</span>
<a name="l00029"></a>00029 <span class="preprocessor"></span> <span class="keyword">typedef</span> std::ptrdiff_t difference_type;
<a name="l00030"></a>00030 <span class="preprocessor">#endif</span>
<a name="l00031"></a>00031 <span class="preprocessor"></span> <span class="keyword">typedef</span> T * pointer;
<a name="l00032"></a>00032 <span class="keyword">typedef</span> <span class="keyword">const</span> T * const_pointer;
<a name="l00033"></a>00033 <span class="keyword">typedef</span> T & reference;
<a name="l00034"></a>00034 <span class="keyword">typedef</span> <span class="keyword">const</span> T & const_reference;
<a name="l00035"></a>00035
<a name="l00036"></a>00036 pointer address(reference r)<span class="keyword"> const </span>{<span class="keywordflow">return</span> (&r);}
<a name="l00037"></a>00037 const_pointer address(const_reference r)<span class="keyword"> const </span>{<span class="keywordflow">return</span> (&r); }
<a name="l00038"></a>00038 <span class="keywordtype">void</span> construct(pointer p, <span class="keyword">const</span> T& val) {<span class="keyword">new</span> (p) T(val);}
<a name="l00039"></a>00039 <span class="keywordtype">void</span> destroy(pointer p) {p->~T();}
<a name="l00040"></a>00040 size_type max_size()<span class="keyword"> const </span>{<span class="keywordflow">return</span> ~size_type(0)/<span class="keyword">sizeof</span>(T);} <span class="comment">// switch to std::numeric_limits<T>::max later</span>
<a name="l00041"></a>00041
<a name="l00042"></a>00042 <span class="keyword">protected</span>:
<a name="l00043"></a>00043 <span class="keyword">static</span> <span class="keywordtype">void</span> CheckSize(<span class="keywordtype">size_t</span> n)
<a name="l00044"></a>00044 {
<a name="l00045"></a>00045 <span class="keywordflow">if</span> (n > ~<span class="keywordtype">size_t</span>(0) / <span class="keyword">sizeof</span>(T))
<a name="l00046"></a>00046 <span class="keywordflow">throw</span> <a class="code" href="class_invalid_argument.html" title="exception thrown when an invalid argument is detected">InvalidArgument</a>(<span class="stringliteral">"AllocatorBase: requested size would cause integer overflow"</span>);
<a name="l00047"></a>00047 }
<a name="l00048"></a>00048 };
<a name="l00049"></a>00049
<a name="l00050"></a>00050 <span class="preprocessor">#define CRYPTOPP_INHERIT_ALLOCATOR_TYPES \</span>
<a name="l00051"></a>00051 <span class="preprocessor">typedef typename AllocatorBase<T>::value_type value_type;\</span>
<a name="l00052"></a>00052 <span class="preprocessor">typedef typename AllocatorBase<T>::size_type size_type;\</span>
<a name="l00053"></a>00053 <span class="preprocessor">typedef typename AllocatorBase<T>::difference_type difference_type;\</span>
<a name="l00054"></a>00054 <span class="preprocessor">typedef typename AllocatorBase<T>::pointer pointer;\</span>
<a name="l00055"></a>00055 <span class="preprocessor">typedef typename AllocatorBase<T>::const_pointer const_pointer;\</span>
<a name="l00056"></a>00056 <span class="preprocessor">typedef typename AllocatorBase<T>::reference reference;\</span>
<a name="l00057"></a>00057 <span class="preprocessor">typedef typename AllocatorBase<T>::const_reference const_reference;</span>
<a name="l00058"></a>00058 <span class="preprocessor"></span>
<a name="l00059"></a>00059 <span class="preprocessor">#if defined(_MSC_VER) && (_MSC_VER < 1300)</span>
<a name="l00060"></a>00060 <span class="preprocessor"></span><span class="comment">// this pragma causes an internal compiler error if placed immediately before std::swap(a, b)</span>
<a name="l00061"></a>00061 <span class="preprocessor">#pragma warning(push)</span>
<a name="l00062"></a>00062 <span class="preprocessor"></span><span class="preprocessor">#pragma warning(disable: 4700) // VC60 workaround: don't know how to get rid of this warning</span>
<a name="l00063"></a>00063 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00064"></a>00064 <span class="preprocessor"></span>
<a name="l00065"></a>00065 <span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keyword">class</span> A>
<a name="l00066"></a>00066 <span class="keyword">typename</span> A::pointer StandardReallocate(A& a, T *p, <span class="keyword">typename</span> A::size_type oldSize, <span class="keyword">typename</span> A::size_type newSize, <span class="keywordtype">bool</span> preserve)
<a name="l00067"></a>00067 {
<a name="l00068"></a>00068 <span class="keywordflow">if</span> (oldSize == newSize)
<a name="l00069"></a>00069 <span class="keywordflow">return</span> p;
<a name="l00070"></a>00070
<a name="l00071"></a>00071 <span class="keywordflow">if</span> (preserve)
<a name="l00072"></a>00072 {
<a name="l00073"></a>00073 <span class="keyword">typename</span> A::pointer newPointer = a.allocate(newSize, NULL);
<a name="l00074"></a>00074 memcpy_s(newPointer, <span class="keyword">sizeof</span>(T)*newSize, p, <span class="keyword">sizeof</span>(T)*STDMIN(oldSize, newSize));
<a name="l00075"></a>00075 a.deallocate(p, oldSize);
<a name="l00076"></a>00076 <span class="keywordflow">return</span> newPointer;
<a name="l00077"></a>00077 }
<a name="l00078"></a>00078 <span class="keywordflow">else</span>
<a name="l00079"></a>00079 {
<a name="l00080"></a>00080 a.deallocate(p, oldSize);
<a name="l00081"></a>00081 <span class="keywordflow">return</span> a.allocate(newSize, NULL);
<a name="l00082"></a>00082 }
<a name="l00083"></a>00083 }
<a name="l00084"></a>00084
<a name="l00085"></a>00085 <span class="preprocessor">#if defined(_MSC_VER) && (_MSC_VER < 1300)</span>
<a name="l00086"></a>00086 <span class="preprocessor"></span><span class="preprocessor">#pragma warning(pop)</span>
<a name="l00087"></a>00087 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00088"></a>00088 <span class="preprocessor"></span>
<a name="l00089"></a>00089 <span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keywordtype">bool</span> T_Align16 = false>
<a name="l00090"></a><a class="code" href="class_allocator_with_cleanup.html">00090</a> <span class="keyword">class </span><a class="code" href="class_allocator_with_cleanup.html">AllocatorWithCleanup</a> : <span class="keyword">public</span> <a class="code" href="class_allocator_base.html">AllocatorBase</a><T>
<a name="l00091"></a>00091 {
<a name="l00092"></a>00092 <span class="keyword">public</span>:
<a name="l00093"></a>00093 CRYPTOPP_INHERIT_ALLOCATOR_TYPES
<a name="l00094"></a>00094
<a name="l00095"></a>00095 pointer allocate(size_type n, <span class="keyword">const</span> <span class="keywordtype">void</span> * = NULL)
<a name="l00096"></a>00096 {
<a name="l00097"></a>00097 CheckSize(n);
<a name="l00098"></a>00098 <span class="keywordflow">if</span> (n == 0)
<a name="l00099"></a>00099 <span class="keywordflow">return</span> NULL;
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="keywordflow">if</span> (CRYPTOPP_BOOL_ALIGN16_ENABLED && T_Align16 && n*<span class="keyword">sizeof</span>(T) >= 16)
<a name="l00102"></a>00102 {
<a name="l00103"></a>00103 byte *p;
<a name="l00104"></a>00104 <span class="preprocessor"> #ifdef CRYPTOPP_MM_MALLOC_AVAILABLE</span>
<a name="l00105"></a>00105 <span class="preprocessor"></span> <span class="keywordflow">while</span> (!(p = (byte *)_mm_malloc(<span class="keyword">sizeof</span>(T)*n, 16)))
<a name="l00106"></a>00106 <span class="preprocessor"> #elif defined(CRYPTOPP_MEMALIGN_AVAILABLE)</span>
<a name="l00107"></a>00107 <span class="preprocessor"></span> <span class="keywordflow">while</span> (!(p = (byte *)memalign(16, <span class="keyword">sizeof</span>(T)*n)))
<a name="l00108"></a>00108 <span class="preprocessor"> #elif defined(CRYPTOPP_MALLOC_ALIGNMENT_IS_16)</span>
<a name="l00109"></a>00109 <span class="preprocessor"></span> <span class="keywordflow">while</span> (!(p = (byte *)malloc(<span class="keyword">sizeof</span>(T)*n)))
<a name="l00110"></a>00110 <span class="preprocessor"> #else</span>
<a name="l00111"></a>00111 <span class="preprocessor"></span> <span class="keywordflow">while</span> (!(p = (byte *)malloc(<span class="keyword">sizeof</span>(T)*n + 16)))
<a name="l00112"></a>00112 <span class="preprocessor"> #endif</span>
<a name="l00113"></a>00113 <span class="preprocessor"></span> CallNewHandler();
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <span class="preprocessor"> #ifdef CRYPTOPP_NO_ALIGNED_ALLOC</span>
<a name="l00116"></a>00116 <span class="preprocessor"></span> <span class="keywordtype">size_t</span> adjustment = 16-((size_t)p%16);
<a name="l00117"></a>00117 p += adjustment;
<a name="l00118"></a>00118 p[-1] = (byte)adjustment;
<a name="l00119"></a>00119 <span class="preprocessor"> #endif</span>
<a name="l00120"></a>00120 <span class="preprocessor"></span>
<a name="l00121"></a>00121 assert(IsAlignedOn(p, 16));
<a name="l00122"></a>00122 <span class="keywordflow">return</span> (pointer)p;
<a name="l00123"></a>00123 }
<a name="l00124"></a>00124
<a name="l00125"></a>00125 pointer p;
<a name="l00126"></a>00126 <span class="keywordflow">while</span> (!(p = (pointer)malloc(<span class="keyword">sizeof</span>(T)*n)))
<a name="l00127"></a>00127 CallNewHandler();
<a name="l00128"></a>00128 <span class="keywordflow">return</span> p;
<a name="l00129"></a>00129 }
<a name="l00130"></a>00130
<a name="l00131"></a>00131 <span class="keywordtype">void</span> deallocate(<span class="keywordtype">void</span> *p, size_type n)
<a name="l00132"></a>00132 {
<a name="l00133"></a>00133 SecureWipeArray((pointer)p, n);
<a name="l00134"></a>00134
<a name="l00135"></a>00135 <span class="keywordflow">if</span> (CRYPTOPP_BOOL_ALIGN16_ENABLED && T_Align16 && n*<span class="keyword">sizeof</span>(T) >= 16)
<a name="l00136"></a>00136 {
<a name="l00137"></a>00137 <span class="preprocessor"> #ifdef CRYPTOPP_MM_MALLOC_AVAILABLE</span>
<a name="l00138"></a>00138 <span class="preprocessor"></span> _mm_free(p);
<a name="l00139"></a>00139 <span class="preprocessor"> #elif defined(CRYPTOPP_NO_ALIGNED_ALLOC)</span>
<a name="l00140"></a>00140 <span class="preprocessor"></span> p = (byte *)p - ((byte *)p)[-1];
<a name="l00141"></a>00141 free(p);
<a name="l00142"></a>00142 <span class="preprocessor"> #else</span>
<a name="l00143"></a>00143 <span class="preprocessor"></span> free(p);
<a name="l00144"></a>00144 <span class="preprocessor"> #endif</span>
<a name="l00145"></a>00145 <span class="preprocessor"></span> <span class="keywordflow">return</span>;
<a name="l00146"></a>00146 }
<a name="l00147"></a>00147
<a name="l00148"></a>00148 free(p);
<a name="l00149"></a>00149 }
<a name="l00150"></a>00150
<a name="l00151"></a>00151 pointer reallocate(T *p, size_type oldSize, size_type newSize, <span class="keywordtype">bool</span> preserve)
<a name="l00152"></a>00152 {
<a name="l00153"></a>00153 <span class="keywordflow">return</span> StandardReallocate(*<span class="keyword">this</span>, p, oldSize, newSize, preserve);
<a name="l00154"></a>00154 }
<a name="l00155"></a>00155
<a name="l00156"></a>00156 <span class="comment">// VS.NET STL enforces the policy of "All STL-compliant allocators have to provide a</span>
<a name="l00157"></a>00157 <span class="comment">// template class member called rebind".</span>
<a name="l00158"></a><a class="code" href="struct_allocator_with_cleanup_1_1rebind.html">00158</a> <span class="keyword">template</span> <<span class="keyword">class</span> U> <span class="keyword">struct </span><a class="code" href="struct_allocator_with_cleanup_1_1rebind.html">rebind</a> { <span class="keyword">typedef</span> <a class="code" href="class_allocator_with_cleanup.html">AllocatorWithCleanup<U, T_Align16></a> <a class="code" href="class_allocator_with_cleanup.html">other</a>; };
<a name="l00159"></a>00159 <span class="preprocessor">#if _MSC_VER >= 1500</span>
<a name="l00160"></a>00160 <span class="preprocessor"></span> <a class="code" href="class_allocator_with_cleanup.html">AllocatorWithCleanup</a>() {}
<a name="l00161"></a>00161 <span class="keyword">template</span> <<span class="keyword">class</span> U, <span class="keywordtype">bool</span> A> <a class="code" href="class_allocator_with_cleanup.html">AllocatorWithCleanup</a>(<span class="keyword">const</span> <a class="code" href="class_allocator_with_cleanup.html">AllocatorWithCleanup<U, A></a> &) {}
<a name="l00162"></a>00162 <span class="preprocessor">#endif</span>
<a name="l00163"></a>00163 <span class="preprocessor"></span>};
<a name="l00164"></a>00164
<a name="l00165"></a>00165 CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_allocator_with_cleanup.html">AllocatorWithCleanup<byte></a>;
<a name="l00166"></a>00166 CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_allocator_with_cleanup.html">AllocatorWithCleanup<word16></a>;
<a name="l00167"></a>00167 CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_allocator_with_cleanup.html">AllocatorWithCleanup<word32></a>;
<a name="l00168"></a>00168 CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_allocator_with_cleanup.html">AllocatorWithCleanup<word64></a>;
<a name="l00169"></a>00169 <span class="preprocessor">#if CRYPTOPP_BOOL_X86</span>
<a name="l00170"></a>00170 <span class="preprocessor"></span>CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_allocator_with_cleanup.html">AllocatorWithCleanup<word, true></a>; <span class="comment">// for Integer</span>
<a name="l00171"></a>00171 <span class="preprocessor">#endif</span>
<a name="l00172"></a>00172 <span class="preprocessor"></span>
<a name="l00173"></a>00173 <span class="keyword">template</span> <<span class="keyword">class</span> T>
<a name="l00174"></a><a class="code" href="class_null_allocator.html">00174</a> <span class="keyword">class </span><a class="code" href="class_null_allocator.html">NullAllocator</a> : <span class="keyword">public</span> <a class="code" href="class_allocator_base.html">AllocatorBase</a><T>
<a name="l00175"></a>00175 {
<a name="l00176"></a>00176 <span class="keyword">public</span>:
<a name="l00177"></a>00177 CRYPTOPP_INHERIT_ALLOCATOR_TYPES
<a name="l00178"></a>00178
<a name="l00179"></a>00179 pointer allocate(size_type n, <span class="keyword">const</span> <span class="keywordtype">void</span> * = NULL)
<a name="l00180"></a>00180 {
<a name="l00181"></a>00181 assert(<span class="keyword">false</span>);
<a name="l00182"></a>00182 <span class="keywordflow">return</span> NULL;
<a name="l00183"></a>00183 }
<a name="l00184"></a>00184
<a name="l00185"></a>00185 <span class="keywordtype">void</span> deallocate(<span class="keywordtype">void</span> *p, size_type n)
<a name="l00186"></a>00186 {
<a name="l00187"></a>00187 assert(<span class="keyword">false</span>);
<a name="l00188"></a>00188 }
<a name="l00189"></a>00189
<a name="l00190"></a>00190 size_type max_size()<span class="keyword"> const </span>{<span class="keywordflow">return</span> 0;}
<a name="l00191"></a>00191 };
<a name="l00192"></a>00192
<a name="l00193"></a>00193 <span class="comment">// This allocator can't be used with standard collections because</span>
<a name="l00194"></a>00194 <span class="comment">// they require that all objects of the same allocator type are equivalent.</span>
<a name="l00195"></a>00195 <span class="comment">// So this is for use with SecBlock only.</span>
<a name="l00196"></a>00196 <span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keywordtype">size_t</span> S, <span class="keyword">class</span> A = NullAllocator<T>, <span class="keywordtype">bool</span> T_Align16 = false>
<a name="l00197"></a><a class="code" href="class_fixed_size_allocator_with_cleanup.html">00197</a> <span class="keyword">class </span><a class="code" href="class_fixed_size_allocator_with_cleanup.html">FixedSizeAllocatorWithCleanup</a> : <span class="keyword">public</span> <a class="code" href="class_allocator_base.html">AllocatorBase</a><T>
<a name="l00198"></a>00198 {
<a name="l00199"></a>00199 <span class="keyword">public</span>:
<a name="l00200"></a>00200 CRYPTOPP_INHERIT_ALLOCATOR_TYPES
<a name="l00201"></a>00201
<a name="l00202"></a>00202 <a class="code" href="class_fixed_size_allocator_with_cleanup.html">FixedSizeAllocatorWithCleanup</a>() : m_allocated(<span class="keyword">false</span>) {}
<a name="l00203"></a>00203
<a name="l00204"></a>00204 pointer allocate(size_type n)
<a name="l00205"></a>00205 {
<a name="l00206"></a>00206 assert(IsAlignedOn(m_array, 8));
<a name="l00207"></a>00207
<a name="l00208"></a>00208 <span class="keywordflow">if</span> (n <= S && !m_allocated)
<a name="l00209"></a>00209 {
<a name="l00210"></a>00210 m_allocated = <span class="keyword">true</span>;
<a name="l00211"></a>00211 <span class="keywordflow">return</span> GetAlignedArray();
<a name="l00212"></a>00212 }
<a name="l00213"></a>00213 <span class="keywordflow">else</span>
<a name="l00214"></a>00214 <span class="keywordflow">return</span> m_fallbackAllocator.allocate(n);
<a name="l00215"></a>00215 }
<a name="l00216"></a>00216
<a name="l00217"></a>00217 pointer allocate(size_type n, <span class="keyword">const</span> <span class="keywordtype">void</span> *hint)
<a name="l00218"></a>00218 {
<a name="l00219"></a>00219 <span class="keywordflow">if</span> (n <= S && !m_allocated)
<a name="l00220"></a>00220 {
<a name="l00221"></a>00221 m_allocated = <span class="keyword">true</span>;
<a name="l00222"></a>00222 <span class="keywordflow">return</span> GetAlignedArray();
<a name="l00223"></a>00223 }
<a name="l00224"></a>00224 <span class="keywordflow">else</span>
<a name="l00225"></a>00225 <span class="keywordflow">return</span> m_fallbackAllocator.allocate(n, hint);
<a name="l00226"></a>00226 }
<a name="l00227"></a>00227
<a name="l00228"></a>00228 <span class="keywordtype">void</span> deallocate(<span class="keywordtype">void</span> *p, size_type n)
<a name="l00229"></a>00229 {
<a name="l00230"></a>00230 <span class="keywordflow">if</span> (p == GetAlignedArray())
<a name="l00231"></a>00231 {
<a name="l00232"></a>00232 assert(n <= S);
<a name="l00233"></a>00233 assert(m_allocated);
<a name="l00234"></a>00234 m_allocated = <span class="keyword">false</span>;
<a name="l00235"></a>00235 SecureWipeArray((pointer)p, n);
<a name="l00236"></a>00236 }
<a name="l00237"></a>00237 <span class="keywordflow">else</span>
<a name="l00238"></a>00238 m_fallbackAllocator.deallocate(p, n);
<a name="l00239"></a>00239 }
<a name="l00240"></a>00240
<a name="l00241"></a>00241 pointer reallocate(pointer p, size_type oldSize, size_type newSize, <span class="keywordtype">bool</span> preserve)
<a name="l00242"></a>00242 {
<a name="l00243"></a>00243 <span class="keywordflow">if</span> (p == GetAlignedArray() && newSize <= S)
<a name="l00244"></a>00244 {
<a name="l00245"></a>00245 assert(oldSize <= S);
<a name="l00246"></a>00246 <span class="keywordflow">if</span> (oldSize > newSize)
<a name="l00247"></a>00247 SecureWipeArray(p+newSize, oldSize-newSize);
<a name="l00248"></a>00248 <span class="keywordflow">return</span> p;
<a name="l00249"></a>00249 }
<a name="l00250"></a>00250
<a name="l00251"></a>00251 pointer newPointer = allocate(newSize, NULL);
<a name="l00252"></a>00252 <span class="keywordflow">if</span> (preserve)
<a name="l00253"></a>00253 memcpy(newPointer, p, <span class="keyword">sizeof</span>(T)*STDMIN(oldSize, newSize));
<a name="l00254"></a>00254 deallocate(p, oldSize);
<a name="l00255"></a>00255 <span class="keywordflow">return</span> newPointer;
<a name="l00256"></a>00256 }
<a name="l00257"></a>00257
<a name="l00258"></a>00258 size_type max_size()<span class="keyword"> const </span>{<span class="keywordflow">return</span> STDMAX(m_fallbackAllocator.max_size(), S);}
<a name="l00259"></a>00259
<a name="l00260"></a>00260 <span class="keyword">private</span>:
<a name="l00261"></a>00261 <span class="preprocessor">#ifdef __BORLANDC__</span>
<a name="l00262"></a>00262 <span class="preprocessor"></span> T* GetAlignedArray() {<span class="keywordflow">return</span> m_array;}
<a name="l00263"></a>00263 T m_array[S];
<a name="l00264"></a>00264 <span class="preprocessor">#else</span>
<a name="l00265"></a>00265 <span class="preprocessor"></span> T* GetAlignedArray() {<span class="keywordflow">return</span> (CRYPTOPP_BOOL_ALIGN16_ENABLED && T_Align16) ? (T*)(((byte *)m_array) + (0-(size_t)m_array)%16) : m_array;}
<a name="l00266"></a>00266 CRYPTOPP_ALIGN_DATA(8) T m_array[(CRYPTOPP_BOOL_ALIGN16_ENABLED && T_Align16) ? S+8/<span class="keyword">sizeof</span>(T) : S];
<a name="l00267"></a>00267 <span class="preprocessor">#endif</span>
<a name="l00268"></a>00268 <span class="preprocessor"></span> A m_fallbackAllocator;
<a name="l00269"></a>00269 <span class="keywordtype">bool</span> m_allocated;
<a name="l00270"></a>00270 };
<a name="l00271"></a>00271 <span class="comment"></span>
<a name="l00272"></a>00272 <span class="comment">//! a block of memory allocated using A</span>
<a name="l00273"></a>00273 <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keyword">class</span> A = AllocatorWithCleanup<T> >
<a name="l00274"></a><a class="code" href="class_sec_block.html">00274</a> <span class="keyword">class </span><a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock</a>
<a name="l00275"></a>00275 {
<a name="l00276"></a>00276 <span class="keyword">public</span>:
<a name="l00277"></a>00277 <span class="keyword">typedef</span> <span class="keyword">typename</span> A::value_type value_type;
<a name="l00278"></a>00278 <span class="keyword">typedef</span> <span class="keyword">typename</span> A::pointer iterator;
<a name="l00279"></a>00279 <span class="keyword">typedef</span> <span class="keyword">typename</span> A::const_pointer const_iterator;
<a name="l00280"></a>00280 <span class="keyword">typedef</span> <span class="keyword">typename</span> A::size_type size_type;
<a name="l00281"></a>00281
<a name="l00282"></a>00282 <span class="keyword">explicit</span> <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock</a>(size_type size=0)
<a name="l00283"></a>00283 : m_size(size) {m_ptr = m_alloc.allocate(size, NULL);}
<a name="l00284"></a>00284 <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock</a>(<span class="keyword">const</span> <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock<T, A></a> &t)
<a name="l00285"></a>00285 : m_size(t.m_size) {m_ptr = m_alloc.allocate(m_size, NULL); memcpy_s(m_ptr, m_size*<span class="keyword">sizeof</span>(T), t.m_ptr, m_size*<span class="keyword">sizeof</span>(T));}
<a name="l00286"></a>00286 <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock</a>(<span class="keyword">const</span> T *t, size_type len)
<a name="l00287"></a>00287 : m_size(len)
<a name="l00288"></a>00288 {
<a name="l00289"></a>00289 m_ptr = m_alloc.allocate(len, NULL);
<a name="l00290"></a>00290 <span class="keywordflow">if</span> (t == NULL)
<a name="l00291"></a>00291 memset_z(m_ptr, 0, len*<span class="keyword">sizeof</span>(T));
<a name="l00292"></a>00292 <span class="keywordflow">else</span>
<a name="l00293"></a>00293 memcpy(m_ptr, t, len*<span class="keyword">sizeof</span>(T));
<a name="l00294"></a>00294 }
<a name="l00295"></a>00295
<a name="l00296"></a>00296 ~<a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock</a>()
<a name="l00297"></a>00297 {m_alloc.deallocate(m_ptr, m_size);}
<a name="l00298"></a>00298
<a name="l00299"></a>00299 <span class="preprocessor">#ifdef __BORLANDC__</span>
<a name="l00300"></a>00300 <span class="preprocessor"></span> operator T *()<span class="keyword"> const</span>
<a name="l00301"></a>00301 <span class="keyword"> </span>{<span class="keywordflow">return</span> (T*)m_ptr;}
<a name="l00302"></a>00302 <span class="preprocessor">#else</span>
<a name="l00303"></a>00303 <span class="preprocessor"></span> operator const void *()<span class="keyword"> const</span>
<a name="l00304"></a>00304 <span class="keyword"> </span>{<span class="keywordflow">return</span> m_ptr;}
<a name="l00305"></a>00305 operator void *()
<a name="l00306"></a>00306 {<span class="keywordflow">return</span> m_ptr;}
<a name="l00307"></a>00307
<a name="l00308"></a>00308 operator const T *()<span class="keyword"> const</span>
<a name="l00309"></a>00309 <span class="keyword"> </span>{<span class="keywordflow">return</span> m_ptr;}
<a name="l00310"></a>00310 operator T *()
<a name="l00311"></a>00311 {<span class="keywordflow">return</span> m_ptr;}
<a name="l00312"></a>00312 <span class="preprocessor">#endif</span>
<a name="l00313"></a>00313 <span class="preprocessor"></span>
<a name="l00314"></a>00314 <span class="comment">// T *operator +(size_type offset)</span>
<a name="l00315"></a>00315 <span class="comment">// {return m_ptr+offset;}</span>
<a name="l00316"></a>00316
<a name="l00317"></a>00317 <span class="comment">// const T *operator +(size_type offset) const</span>
<a name="l00318"></a>00318 <span class="comment">// {return m_ptr+offset;}</span>
<a name="l00319"></a>00319
<a name="l00320"></a>00320 <span class="comment">// T& operator[](size_type index)</span>
<a name="l00321"></a>00321 <span class="comment">// {assert(index >= 0 && index < m_size); return m_ptr[index];}</span>
<a name="l00322"></a>00322
<a name="l00323"></a>00323 <span class="comment">// const T& operator[](size_type index) const</span>
<a name="l00324"></a>00324 <span class="comment">// {assert(index >= 0 && index < m_size); return m_ptr[index];}</span>
<a name="l00325"></a>00325
<a name="l00326"></a>00326 iterator begin()
<a name="l00327"></a>00327 {<span class="keywordflow">return</span> m_ptr;}
<a name="l00328"></a>00328 const_iterator begin()<span class="keyword"> const</span>
<a name="l00329"></a>00329 <span class="keyword"> </span>{<span class="keywordflow">return</span> m_ptr;}
<a name="l00330"></a>00330 iterator end()
<a name="l00331"></a>00331 {<span class="keywordflow">return</span> m_ptr+m_size;}
<a name="l00332"></a>00332 const_iterator end()<span class="keyword"> const</span>
<a name="l00333"></a>00333 <span class="keyword"> </span>{<span class="keywordflow">return</span> m_ptr+m_size;}
<a name="l00334"></a>00334
<a name="l00335"></a>00335 <span class="keyword">typename</span> A::pointer data() {<span class="keywordflow">return</span> m_ptr;}
<a name="l00336"></a>00336 <span class="keyword">typename</span> A::const_pointer data()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_ptr;}
<a name="l00337"></a>00337
<a name="l00338"></a>00338 size_type size()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_size;}
<a name="l00339"></a>00339 <span class="keywordtype">bool</span> empty()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_size == 0;}
<a name="l00340"></a>00340
<a name="l00341"></a>00341 byte * BytePtr() {<span class="keywordflow">return</span> (byte *)m_ptr;}
<a name="l00342"></a>00342 <span class="keyword">const</span> byte * BytePtr()<span class="keyword"> const </span>{<span class="keywordflow">return</span> (<span class="keyword">const</span> byte *)m_ptr;}
<a name="l00343"></a>00343 size_type SizeInBytes()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_size*<span class="keyword">sizeof</span>(T);}
<a name="l00344"></a>00344 <span class="comment"></span>
<a name="l00345"></a>00345 <span class="comment"> //! set contents and size</span>
<a name="l00346"></a><a class="code" href="class_sec_block.html#a2cf5dc5e31c63eb927f935af6104f36a">00346</a> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_sec_block.html#a2cf5dc5e31c63eb927f935af6104f36a" title="set contents and size">Assign</a>(<span class="keyword">const</span> T *t, size_type len)
<a name="l00347"></a>00347 {
<a name="l00348"></a>00348 <a class="code" href="class_sec_block.html#a90d46e577c951d81a2d25a4742a3e979" title="change size, without preserving contents">New</a>(len);
<a name="l00349"></a>00349 memcpy_s(m_ptr, m_size*<span class="keyword">sizeof</span>(T), t, len*<span class="keyword">sizeof</span>(T));
<a name="l00350"></a>00350 }
<a name="l00351"></a>00351 <span class="comment"></span>
<a name="l00352"></a>00352 <span class="comment"> //! copy contents and size from another SecBlock</span>
<a name="l00353"></a><a class="code" href="class_sec_block.html#a309d571ffb1b7d58185a8309ca58e6b2">00353</a> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_sec_block.html#a2cf5dc5e31c63eb927f935af6104f36a" title="set contents and size">Assign</a>(<span class="keyword">const</span> <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock<T, A></a> &t)
<a name="l00354"></a>00354 {
<a name="l00355"></a>00355 <a class="code" href="class_sec_block.html#a90d46e577c951d81a2d25a4742a3e979" title="change size, without preserving contents">New</a>(t.m_size);
<a name="l00356"></a>00356 memcpy_s(m_ptr, m_size*<span class="keyword">sizeof</span>(T), t.m_ptr, m_size*<span class="keyword">sizeof</span>(T));
<a name="l00357"></a>00357 }
<a name="l00358"></a>00358
<a name="l00359"></a>00359 <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock<T, A></a>& operator=(<span class="keyword">const</span> <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock<T, A></a> &t)
<a name="l00360"></a>00360 {
<a name="l00361"></a>00361 <a class="code" href="class_sec_block.html#a2cf5dc5e31c63eb927f935af6104f36a" title="set contents and size">Assign</a>(t);
<a name="l00362"></a>00362 <span class="keywordflow">return</span> *<span class="keyword">this</span>;
<a name="l00363"></a>00363 }
<a name="l00364"></a>00364
<a name="l00365"></a>00365 <span class="comment">// append to this object</span>
<a name="l00366"></a>00366 <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock<T, A></a>& operator+=(<span class="keyword">const</span> <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock<T, A></a> &t)
<a name="l00367"></a>00367 {
<a name="l00368"></a>00368 size_type oldSize = m_size;
<a name="l00369"></a>00369 <a class="code" href="class_sec_block.html#a8dea287fba8236b0979b52beece0ec1b" title="change size only if newSize &gt; current size. contents are preserved">Grow</a>(m_size+t.m_size);
<a name="l00370"></a>00370 memcpy_s(m_ptr+oldSize, m_size*<span class="keyword">sizeof</span>(T), t.m_ptr, t.m_size*<span class="keyword">sizeof</span>(T));
<a name="l00371"></a>00371 <span class="keywordflow">return</span> *<span class="keyword">this</span>;
<a name="l00372"></a>00372 }
<a name="l00373"></a>00373
<a name="l00374"></a>00374 <span class="comment">// append operator</span>
<a name="l00375"></a>00375 <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock<T, A></a> operator+(<span class="keyword">const</span> <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock<T, A></a> &t)
<a name="l00376"></a>00376 {
<a name="l00377"></a>00377 <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock<T, A></a> result(m_size+t.m_size);
<a name="l00378"></a>00378 memcpy_s(result.m_ptr, result.m_size*<span class="keyword">sizeof</span>(T), m_ptr, m_size*<span class="keyword">sizeof</span>(T));
<a name="l00379"></a>00379 memcpy_s(result.m_ptr+m_size, t.m_size*<span class="keyword">sizeof</span>(T), t.m_ptr, t.m_size*<span class="keyword">sizeof</span>(T));
<a name="l00380"></a>00380 <span class="keywordflow">return</span> result;
<a name="l00381"></a>00381 }
<a name="l00382"></a>00382
<a name="l00383"></a>00383 <span class="keywordtype">bool</span> operator==(<span class="keyword">const</span> <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock<T, A></a> &t)<span class="keyword"> const</span>
<a name="l00384"></a>00384 <span class="keyword"> </span>{
<a name="l00385"></a>00385 <span class="keywordflow">return</span> m_size == t.m_size && VerifyBufsEqual(m_ptr, t.m_ptr, m_size*<span class="keyword">sizeof</span>(T));
<a name="l00386"></a>00386 }
<a name="l00387"></a>00387
<a name="l00388"></a>00388 <span class="keywordtype">bool</span> operator!=(<span class="keyword">const</span> <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock<T, A></a> &t)<span class="keyword"> const</span>
<a name="l00389"></a>00389 <span class="keyword"> </span>{
<a name="l00390"></a>00390 <span class="keywordflow">return</span> !operator==(t);
<a name="l00391"></a>00391 }
<a name="l00392"></a>00392 <span class="comment"></span>
<a name="l00393"></a>00393 <span class="comment"> //! change size, without preserving contents</span>
<a name="l00394"></a><a class="code" href="class_sec_block.html#a90d46e577c951d81a2d25a4742a3e979">00394</a> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_sec_block.html#a90d46e577c951d81a2d25a4742a3e979" title="change size, without preserving contents">New</a>(size_type newSize)
<a name="l00395"></a>00395 {
<a name="l00396"></a>00396 m_ptr = m_alloc.reallocate(m_ptr, m_size, newSize, <span class="keyword">false</span>);
<a name="l00397"></a>00397 m_size = newSize;
<a name="l00398"></a>00398 }
<a name="l00399"></a>00399 <span class="comment"></span>
<a name="l00400"></a>00400 <span class="comment"> //! change size and set contents to 0</span>
<a name="l00401"></a><a class="code" href="class_sec_block.html#a2d78e75002fd02e5b89bd72a9e65e769">00401</a> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_sec_block.html#a2d78e75002fd02e5b89bd72a9e65e769" title="change size and set contents to 0">CleanNew</a>(size_type newSize)
<a name="l00402"></a>00402 {
<a name="l00403"></a>00403 <a class="code" href="class_sec_block.html#a90d46e577c951d81a2d25a4742a3e979" title="change size, without preserving contents">New</a>(newSize);
<a name="l00404"></a>00404 memset_z(m_ptr, 0, m_size*<span class="keyword">sizeof</span>(T));
<a name="l00405"></a>00405 }
<a name="l00406"></a>00406 <span class="comment"></span>
<a name="l00407"></a>00407 <span class="comment"> //! change size only if newSize > current size. contents are preserved</span>
<a name="l00408"></a><a class="code" href="class_sec_block.html#a8dea287fba8236b0979b52beece0ec1b">00408</a> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_sec_block.html#a8dea287fba8236b0979b52beece0ec1b" title="change size only if newSize &gt; current size. contents are preserved">Grow</a>(size_type newSize)
<a name="l00409"></a>00409 {
<a name="l00410"></a>00410 <span class="keywordflow">if</span> (newSize > m_size)
<a name="l00411"></a>00411 {
<a name="l00412"></a>00412 m_ptr = m_alloc.reallocate(m_ptr, m_size, newSize, <span class="keyword">true</span>);
<a name="l00413"></a>00413 m_size = newSize;
<a name="l00414"></a>00414 }
<a name="l00415"></a>00415 }
<a name="l00416"></a>00416 <span class="comment"></span>
<a name="l00417"></a>00417 <span class="comment"> //! change size only if newSize > current size. contents are preserved and additional area is set to 0</span>
<a name="l00418"></a><a class="code" href="class_sec_block.html#a4ef9516e973051e6afa38bba526da3e9">00418</a> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_sec_block.html#a4ef9516e973051e6afa38bba526da3e9" title="change size only if newSize &gt; current size. contents are preserved and additional...">CleanGrow</a>(size_type newSize)
<a name="l00419"></a>00419 {
<a name="l00420"></a>00420 <span class="keywordflow">if</span> (newSize > m_size)
<a name="l00421"></a>00421 {
<a name="l00422"></a>00422 m_ptr = m_alloc.reallocate(m_ptr, m_size, newSize, <span class="keyword">true</span>);
<a name="l00423"></a>00423 memset(m_ptr+m_size, 0, (newSize-m_size)*<span class="keyword">sizeof</span>(T));
<a name="l00424"></a>00424 m_size = newSize;
<a name="l00425"></a>00425 }
<a name="l00426"></a>00426 }
<a name="l00427"></a>00427 <span class="comment"></span>
<a name="l00428"></a>00428 <span class="comment"> //! change size and preserve contents</span>
<a name="l00429"></a><a class="code" href="class_sec_block.html#af9e98d3f4a7af1156fcf3e6e68f4ae5a">00429</a> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_sec_block.html#af9e98d3f4a7af1156fcf3e6e68f4ae5a" title="change size and preserve contents">resize</a>(size_type newSize)
<a name="l00430"></a>00430 {
<a name="l00431"></a>00431 m_ptr = m_alloc.reallocate(m_ptr, m_size, newSize, <span class="keyword">true</span>);
<a name="l00432"></a>00432 m_size = newSize;
<a name="l00433"></a>00433 }
<a name="l00434"></a>00434 <span class="comment"></span>
<a name="l00435"></a>00435 <span class="comment"> //! swap contents and size with another SecBlock</span>
<a name="l00436"></a><a class="code" href="class_sec_block.html#a3872f50f03372fa859803971961f02cd">00436</a> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_sec_block.html#a3872f50f03372fa859803971961f02cd" title="swap contents and size with another SecBlock">swap</a>(<a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock<T, A></a> &b)
<a name="l00437"></a>00437 {
<a name="l00438"></a>00438 <a class="code" href="class_sec_block.html#a3872f50f03372fa859803971961f02cd" title="swap contents and size with another SecBlock">std::swap</a>(m_alloc, b.m_alloc);
<a name="l00439"></a>00439 <a class="code" href="class_sec_block.html#a3872f50f03372fa859803971961f02cd" title="swap contents and size with another SecBlock">std::swap</a>(m_size, b.m_size);
<a name="l00440"></a>00440 <a class="code" href="class_sec_block.html#a3872f50f03372fa859803971961f02cd" title="swap contents and size with another SecBlock">std::swap</a>(m_ptr, b.m_ptr);
<a name="l00441"></a>00441 }
<a name="l00442"></a>00442
<a name="l00443"></a>00443 <span class="comment">//private:</span>
<a name="l00444"></a>00444 A m_alloc;
<a name="l00445"></a>00445 size_type m_size;
<a name="l00446"></a>00446 T *m_ptr;
<a name="l00447"></a>00447 };
<a name="l00448"></a>00448
<a name="l00449"></a>00449 <span class="keyword">typedef</span> <a class="code" href="class_sec_block.html">SecBlock<byte></a> <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecByteBlock</a>;
<a name="l00450"></a>00450 <span class="keyword">typedef</span> <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock<byte, AllocatorWithCleanup<byte, true></a> > <a class="code" href="class_sec_block.html">AlignedSecByteBlock</a>;
<a name="l00451"></a>00451 <span class="keyword">typedef</span> <a class="code" href="class_sec_block.html">SecBlock<word></a> <a class="code" href="class_sec_block.html">SecWordBlock</a>;
<a name="l00452"></a>00452 <span class="comment"></span>
<a name="l00453"></a>00453 <span class="comment">//! a SecBlock with fixed size, allocated statically</span>
<a name="l00454"></a>00454 <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> S, <span class="keyword">class</span> A = FixedSizeAllocatorWithCleanup<T, S> >
<a name="l00455"></a><a class="code" href="class_fixed_size_sec_block.html">00455</a> <span class="keyword">class </span><a class="code" href="class_fixed_size_sec_block.html" title="a SecBlock with fixed size, allocated statically">FixedSizeSecBlock</a> : <span class="keyword">public</span> <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock</a><T, A>
<a name="l00456"></a>00456 {
<a name="l00457"></a>00457 <span class="keyword">public</span>:
<a name="l00458"></a>00458 <span class="keyword">explicit</span> <a class="code" href="class_fixed_size_sec_block.html" title="a SecBlock with fixed size, allocated statically">FixedSizeSecBlock</a>() : <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock<T, A></a>(S) {}
<a name="l00459"></a>00459 };
<a name="l00460"></a>00460
<a name="l00461"></a>00461 <span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> S, <span class="keywordtype">bool</span> T_Align16 = true>
<a name="l00462"></a><a class="code" href="class_fixed_size_aligned_sec_block.html">00462</a> <span class="keyword">class </span><a class="code" href="class_fixed_size_aligned_sec_block.html">FixedSizeAlignedSecBlock</a> : <span class="keyword">public</span> <a class="code" href="class_fixed_size_sec_block.html" title="a SecBlock with fixed size, allocated statically">FixedSizeSecBlock</a><T, S, FixedSizeAllocatorWithCleanup<T, S, NullAllocator<T>, T_Align16> >
<a name="l00463"></a>00463 {
<a name="l00464"></a>00464 };
<a name="l00465"></a>00465 <span class="comment"></span>
<a name="l00466"></a>00466 <span class="comment">//! a SecBlock that preallocates size S statically, and uses the heap when this size is exceeded</span>
<a name="l00467"></a>00467 <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> S, <span class="keyword">class</span> A = FixedSizeAllocatorWithCleanup<T, S, AllocatorWithCleanup<T> > >
<a name="l00468"></a><a class="code" href="class_sec_block_with_hint.html">00468</a> <span class="keyword">class </span><a class="code" href="class_sec_block_with_hint.html" title="a SecBlock that preallocates size S statically, and uses the heap when this size...">SecBlockWithHint</a> : <span class="keyword">public</span> <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock</a><T, A>
<a name="l00469"></a>00469 {
<a name="l00470"></a>00470 <span class="keyword">public</span>:
<a name="l00471"></a>00471 <span class="keyword">explicit</span> <a class="code" href="class_sec_block_with_hint.html" title="a SecBlock that preallocates size S statically, and uses the heap when this size...">SecBlockWithHint</a>(<span class="keywordtype">size_t</span> size) : <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock<T, A></a>(size) {}
<a name="l00472"></a>00472 };
<a name="l00473"></a>00473
<a name="l00474"></a>00474 <span class="keyword">template</span><<span class="keyword">class</span> T, <span class="keywordtype">bool</span> A, <span class="keyword">class</span> U, <span class="keywordtype">bool</span> B>
<a name="l00475"></a>00475 <span class="keyword">inline</span> <span class="keywordtype">bool</span> operator==(<span class="keyword">const</span> CryptoPP::AllocatorWithCleanup<T, A>&, <span class="keyword">const</span> CryptoPP::AllocatorWithCleanup<U, B>&) {<span class="keywordflow">return</span> (<span class="keyword">true</span>);}
<a name="l00476"></a>00476 <span class="keyword">template</span><<span class="keyword">class</span> T, <span class="keywordtype">bool</span> A, <span class="keyword">class</span> U, <span class="keywordtype">bool</span> B>
<a name="l00477"></a>00477 <span class="keyword">inline</span> <span class="keywordtype">bool</span> operator!=(<span class="keyword">const</span> CryptoPP::AllocatorWithCleanup<T, A>&, <span class="keyword">const</span> CryptoPP::AllocatorWithCleanup<U, B>&) {<span class="keywordflow">return</span> (<span class="keyword">false</span>);}
<a name="l00478"></a>00478
<a name="l00479"></a>00479 NAMESPACE_END
<a name="l00480"></a>00480
<a name="l00481"></a>00481 NAMESPACE_BEGIN(std)
<a name="l00482"></a>00482 template <class T, class A>
<a name="l00483"></a>00483 inline <span class="keywordtype">void</span> swap(CryptoPP::<a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock</a><T, A> &a, CryptoPP::<a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecBlock</a><T, A> &b)
<a name="l00484"></a>00484 {
<a name="l00485"></a>00485 a.swap(b);
<a name="l00486"></a>00486 }
<a name="l00487"></a>00487
<a name="l00488"></a>00488 <span class="preprocessor">#if defined(_STLP_DONT_SUPPORT_REBIND_MEMBER_TEMPLATE) || (defined(_STLPORT_VERSION) && !defined(_STLP_MEMBER_TEMPLATE_CLASSES))</span>
<a name="l00489"></a>00489 <span class="preprocessor"></span><span class="comment">// working for STLport 5.1.3 and MSVC 6 SP5</span>
<a name="l00490"></a>00490 <span class="keyword">template</span> <<span class="keyword">class</span> _Tp1, <span class="keyword">class</span> _Tp2>
<a name="l00491"></a>00491 <span class="keyword">inline</span> CryptoPP::AllocatorWithCleanup<_Tp2>&
<a name="l00492"></a>00492 __stl_alloc_rebind(CryptoPP::AllocatorWithCleanup<_Tp1>& __a, <span class="keyword">const</span> _Tp2*)
<a name="l00493"></a>00493 {
<a name="l00494"></a>00494 <span class="keywordflow">return</span> (CryptoPP::AllocatorWithCleanup<_Tp2>&)(__a);
<a name="l00495"></a>00495 }
<a name="l00496"></a>00496 <span class="preprocessor">#endif</span>
<a name="l00497"></a>00497 <span class="preprocessor"></span>
<a name="l00498"></a>00498 NAMESPACE_END
<a name="l00499"></a>00499
<a name="l00500"></a>00500 <span class="preprocessor">#endif</span>
</pre></div></div>
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