config_8h-source.html

著名的密码库Crypto++的文档 C++语言的杰作。程序员必备。

<a name="l00100"></a>00100 <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> byte;             <span class="comment">// put in global namespace to avoid ambiguity with other byte typedefs</span>
<a name="l00101"></a>00101 
<a name="l00102"></a>00102 NAMESPACE_BEGIN(CryptoPP)
<a name="l00103"></a>00103 
<a name="l00104"></a>00104 typedef <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> word16;
<a name="l00105"></a>00105 typedef <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> word32;
<a name="l00106"></a>00106 
<a name="l00107"></a>00107 <span class="preprocessor">#if defined(__GNUC__) || defined(__MWERKS__) || defined(__SUNPRO_CC)</span>
<a name="l00108"></a>00108 <span class="preprocessor"></span><span class="preprocessor">        #define WORD64_AVAILABLE</span>
<a name="l00109"></a>00109 <span class="preprocessor"></span>        <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> word64;
<a name="l00110"></a>00110 <span class="preprocessor">        #define W64LIT(x) x##LL</span>
<a name="l00111"></a>00111 <span class="preprocessor"></span><span class="preprocessor">#elif defined(_MSC_VER) || defined(__BORLANDC__)</span>
<a name="l00112"></a>00112 <span class="preprocessor"></span><span class="preprocessor">        #define WORD64_AVAILABLE</span>
<a name="l00113"></a>00113 <span class="preprocessor"></span>        <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> __int64 word64;
<a name="l00114"></a>00114 <span class="preprocessor">        #define W64LIT(x) x##ui64</span>
<a name="l00115"></a>00115 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00116"></a>00116 <span class="preprocessor"></span>
<a name="l00117"></a>00117 <span class="comment">// define large word type, used for file offsets and such</span>
<a name="l00118"></a>00118 <span class="preprocessor">#ifdef WORD64_AVAILABLE</span>
<a name="l00119"></a>00119 <span class="preprocessor"></span>        <span class="keyword">typedef</span> word64 lword;
<a name="l00120"></a>00120         <span class="keyword">const</span> lword LWORD_MAX = W64LIT(0xffffffffffffffff);
<a name="l00121"></a>00121 <span class="preprocessor">#else</span>
<a name="l00122"></a>00122 <span class="preprocessor"></span>        <span class="keyword">typedef</span> word32 lword;
<a name="l00123"></a>00123         <span class="keyword">const</span> lword LWORD_MAX = 0xffffffffUL;
<a name="l00124"></a>00124 <span class="preprocessor">#endif</span>
<a name="l00125"></a>00125 <span class="preprocessor"></span>
<a name="l00126"></a>00126 <span class="comment">// define hword, word, and dword. these are used for multiprecision integer arithmetic</span>
<a name="l00127"></a>00127 <span class="comment">// Intel compiler won't have _umul128 until version 10.0. See http://softwarecommunity.intel.com/isn/Community/en-US/forums/thread/30231625.aspx</span>
<a name="l00128"></a>00128 <span class="preprocessor">#if (defined(_MSC_VER) &amp;&amp; (!defined(__INTEL_COMPILER) || __INTEL_COMPILER &gt;= 1000) &amp;&amp; (defined(_M_X64) || defined(_M_IA64))) || (defined(__DECCXX) &amp;&amp; defined(__alpha__))</span>
<a name="l00129"></a>00129 <span class="preprocessor"></span>        <span class="keyword">typedef</span> word32 hword;
<a name="l00130"></a>00130         <span class="keyword">typedef</span> word64 word;
<a name="l00131"></a>00131 <span class="preprocessor">#else</span>
<a name="l00132"></a>00132 <span class="preprocessor"></span><span class="preprocessor">        #define CRYPTOPP_NATIVE_DWORD_AVAILABLE</span>
<a name="l00133"></a>00133 <span class="preprocessor"></span><span class="preprocessor">        #if defined(__alpha__) || defined(__ia64__) || defined(_ARCH_PPC64) || defined(__x86_64__) || defined(__mips64) || defined(__sparc64__)</span>
<a name="l00134"></a>00134 <span class="preprocessor"></span><span class="preprocessor">                #if defined(__GNUC__) &amp;&amp; !defined(__INTEL_COMPILER)</span>
<a name="l00135"></a>00135 <span class="preprocessor"></span>                        <span class="keyword">typedef</span> word32 hword;
<a name="l00136"></a>00136                         <span class="keyword">typedef</span> word64 word;
<a name="l00137"></a>00137                         <span class="keyword">typedef</span> __uint128_t dword;
<a name="l00138"></a>00138                         <span class="keyword">typedef</span> __uint128_t word128;
<a name="l00139"></a>00139 <span class="preprocessor">                        #define CRYPTOPP_WORD128_AVAILABLE</span>
<a name="l00140"></a>00140 <span class="preprocessor"></span><span class="preprocessor">                #else</span>
<a name="l00141"></a>00141 <span class="preprocessor"></span>                        <span class="comment">// if we're here, it means we're on a 64-bit CPU but we don't have a way to obtain 128-bit multiplication results</span>
<a name="l00142"></a>00142                         <span class="keyword">typedef</span> word16 hword;
<a name="l00143"></a>00143                         <span class="keyword">typedef</span> word32 word;
<a name="l00144"></a>00144                         <span class="keyword">typedef</span> word64 dword;
<a name="l00145"></a>00145 <span class="preprocessor">                #endif</span>
<a name="l00146"></a>00146 <span class="preprocessor"></span><span class="preprocessor">        #elif defined(WORD64_AVAILABLE)</span>
<a name="l00147"></a>00147 <span class="preprocessor"></span><span class="preprocessor">                #define CRYPTOPP_SLOW_WORD64 // use alternative code that avoids word64</span>
<a name="l00148"></a>00148 <span class="preprocessor"></span>                <span class="keyword">typedef</span> word16 hword;
<a name="l00149"></a>00149                 <span class="keyword">typedef</span> word32 word;
<a name="l00150"></a>00150                 <span class="keyword">typedef</span> word64 dword;
<a name="l00151"></a>00151 <span class="preprocessor">        #else</span>
<a name="l00152"></a>00152 <span class="preprocessor"></span>                <span class="keyword">typedef</span> byte hword;
<a name="l00153"></a>00153                 <span class="keyword">typedef</span> word16 word;
<a name="l00154"></a>00154                 <span class="keyword">typedef</span> word32 dword;
<a name="l00155"></a>00155 <span class="preprocessor">        #endif</span>
<a name="l00156"></a>00156 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00157"></a>00157 <span class="preprocessor"></span>
<a name="l00158"></a>00158 <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> WORD_SIZE = <span class="keyword">sizeof</span>(word);
<a name="l00159"></a>00159 <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> WORD_BITS = WORD_SIZE * 8;
<a name="l00160"></a>00160 
<a name="l00161"></a>00161 NAMESPACE_END
<a name="l00162"></a>00162 
<a name="l00163"></a>00163 <span class="preprocessor">#ifndef CRYPTOPP_L1_CACHE_LINE_SIZE</span>
<a name="l00164"></a>00164 <span class="preprocessor"></span>        <span class="comment">// This should be a lower bound on the L1 cache line size. It's used for defense against timing attacks.</span>
<a name="l00165"></a>00165 <span class="preprocessor">        #if defined(_M_X64) || defined(__x86_64__)</span>
<a name="l00166"></a>00166 <span class="preprocessor"></span><span class="preprocessor">                #define CRYPTOPP_L1_CACHE_LINE_SIZE 64</span>
<a name="l00167"></a>00167 <span class="preprocessor"></span><span class="preprocessor">        #else</span>
<a name="l00168"></a>00168 <span class="preprocessor"></span>                <span class="comment">// L1 cache line size is 32 on Pentium III and earlier</span>
<a name="l00169"></a>00169 <span class="preprocessor">                #define CRYPTOPP_L1_CACHE_LINE_SIZE 32</span>
<a name="l00170"></a>00170 <span class="preprocessor"></span><span class="preprocessor">        #endif</span>
<a name="l00171"></a>00171 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00172"></a>00172 <span class="preprocessor"></span>
<a name="l00173"></a>00173 <span class="preprocessor">#if defined(_MSC_VER)</span>
<a name="l00174"></a>00174 <span class="preprocessor"></span><span class="preprocessor">        #if _MSC_VER == 1200</span>
<a name="l00175"></a>00175 <span class="preprocessor"></span><span class="preprocessor">                #include &lt;malloc.h&gt;</span>
<a name="l00176"></a>00176 <span class="preprocessor">        #endif</span>
<a name="l00177"></a>00177 <span class="preprocessor"></span><span class="preprocessor">        #if _MSC_VER &gt; 1200 || defined(_mm_free)</span>
<a name="l00178"></a>00178 <span class="preprocessor"></span><span class="preprocessor">                #define CRYPTOPP_MSVC6PP_OR_LATER               // VC 6 processor pack or later</span>
<a name="l00179"></a>00179 <span class="preprocessor"></span><span class="preprocessor">        #else</span>
<a name="l00180"></a>00180 <span class="preprocessor"></span><span class="preprocessor">                #define CRYPTOPP_MSVC6_NO_PP                    // VC 6 without processor pack</span>
<a name="l00181"></a>00181 <span class="preprocessor"></span><span class="preprocessor">        #endif</span>
<a name="l00182"></a>00182 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00183"></a>00183 <span class="preprocessor"></span>
<a name="l00184"></a>00184 <span class="preprocessor">#ifdef __GNUC__</span>
<a name="l00185"></a>00185 <span class="preprocessor"></span><span class="preprocessor">        #define CRYPTOPP_GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)</span>
<a name="l00186"></a>00186 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00187"></a>00187 <span class="preprocessor"></span>
<a name="l00188"></a>00188 <span class="preprocessor">#ifndef CRYPTOPP_ALIGN_DATA</span>
<a name="l00189"></a>00189 <span class="preprocessor"></span><span class="preprocessor">        #if defined(CRYPTOPP_MSVC6PP_OR_LATER)</span>
<a name="l00190"></a>00190 <span class="preprocessor"></span><span class="preprocessor">                #define CRYPTOPP_ALIGN_DATA(x) __declspec(align(x))</span>
<a name="l00191"></a>00191 <span class="preprocessor"></span><span class="preprocessor">        #elif defined(__GNUC__) || __SUNPRO_CC &gt; 0x580</span>
<a name="l00192"></a>00192 <span class="preprocessor"></span><span class="preprocessor">                #define CRYPTOPP_ALIGN_DATA(x) __attribute__((aligned(x)))</span>
<a name="l00193"></a>00193 <span class="preprocessor"></span><span class="preprocessor">        #else</span>
<a name="l00194"></a>00194 <span class="preprocessor"></span><span class="preprocessor">                #define CRYPTOPP_ALIGN_DATA(x)</span>
<a name="l00195"></a>00195 <span class="preprocessor"></span><span class="preprocessor">        #endif</span>
<a name="l00196"></a>00196 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00197"></a>00197 <span class="preprocessor"></span>
<a name="l00198"></a>00198 <span class="preprocessor">#ifndef CRYPTOPP_SECTION_ALIGN16</span>
<a name="l00199"></a>00199 <span class="preprocessor"></span><span class="preprocessor">        #if defined(__GNUC__) &amp;&amp; !defined(__APPLE__)</span>
<a name="l00200"></a>00200 <span class="preprocessor"></span>                <span class="comment">// the alignment attribute doesn't seem to work without this section attribute when -fdata-sections is turned on</span>
<a name="l00201"></a>00201 <span class="preprocessor">                #define CRYPTOPP_SECTION_ALIGN16 __attribute__((section ("CryptoPP_Align16")))</span>
<a name="l00202"></a>00202 <span class="preprocessor"></span><span class="preprocessor">        #else</span>
<a name="l00203"></a>00203 <span class="preprocessor"></span><span class="preprocessor">                #define CRYPTOPP_SECTION_ALIGN16</span>
<a name="l00204"></a>00204 <span class="preprocessor"></span><span class="preprocessor">        #endif</span>
<a name="l00205"></a>00205 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00206"></a>00206 <span class="preprocessor"></span>
<a name="l00207"></a>00207 <span class="preprocessor">#if defined(_MSC_VER) || defined(__fastcall)</span>
<a name="l00208"></a>00208 <span class="preprocessor"></span><span class="preprocessor">        #define CRYPTOPP_FASTCALL __fastcall</span>
<a name="l00209"></a>00209 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00210"></a>00210 <span class="preprocessor"></span><span class="preprocessor">        #define CRYPTOPP_FASTCALL</span>
<a name="l00211"></a>00211 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00212"></a>00212 <span class="preprocessor"></span>
<a name="l00213"></a>00213 <span class="comment">// VC60 workaround: it doesn't allow typename in some places</span>
<a name="l00214"></a>00214 <span class="preprocessor">#if defined(_MSC_VER) &amp;&amp; (_MSC_VER &lt; 1300)</span>
<a name="l00215"></a>00215 <span class="preprocessor"></span><span class="preprocessor">#define CPP_TYPENAME</span>
<a name="l00216"></a>00216 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00217"></a>00217 <span class="preprocessor"></span><span class="preprocessor">#define CPP_TYPENAME typename</span>
<a name="l00218"></a>00218 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00219"></a>00219 <span class="preprocessor"></span>