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annotate libtomcrypt/src/headers/tomcrypt_cfg.h @ 1925:7ac3b6c380b1

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Fix C99 comment
author Matt Johnston <matt@ucc.asn.au>
date Wed, 30 Mar 2022 14:28:59 +0800
parents 6dba84798cd5
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 */
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9
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10 /* This is the build config file.
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11 *
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12 * With this you can setup what to inlcude/exclude automatically during any build. Just comment
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13 * out the line that #define's the word for the thing you want to remove. phew!
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14 */
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15
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16 #ifndef TOMCRYPT_CFG_H
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17 #define TOMCRYPT_CFG_H
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18
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19 #if defined(_WIN32) || defined(_MSC_VER)
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20 #define LTC_CALL __cdecl
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21 #elif !defined(LTC_CALL)
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22 #define LTC_CALL
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23 #endif
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24
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25 #ifndef LTC_EXPORT
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26 #define LTC_EXPORT
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27 #endif
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28
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29 /* certain platforms use macros for these, making the prototypes broken */
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30 #ifndef LTC_NO_PROTOTYPES
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31
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32 /* you can change how memory allocation works ... */
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33 LTC_EXPORT void * LTC_CALL XMALLOC(size_t n);
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34 LTC_EXPORT void * LTC_CALL XREALLOC(void *p, size_t n);
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35 LTC_EXPORT void * LTC_CALL XCALLOC(size_t n, size_t s);
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36 LTC_EXPORT void LTC_CALL XFREE(void *p);
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38 LTC_EXPORT void LTC_CALL XQSORT(void *base, size_t nmemb, size_t size, int(*compar)(const void *, const void *));
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39
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41 /* change the clock function too */
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42 LTC_EXPORT clock_t LTC_CALL XCLOCK(void);
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43
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44 /* various other functions */
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45 LTC_EXPORT void * LTC_CALL XMEMCPY(void *dest, const void *src, size_t n);
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46 LTC_EXPORT int LTC_CALL XMEMCMP(const void *s1, const void *s2, size_t n);
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47 LTC_EXPORT void * LTC_CALL XMEMSET(void *s, int c, size_t n);
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48
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49 LTC_EXPORT int LTC_CALL XSTRCMP(const char *s1, const char *s2);
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50
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51 #endif
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52
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53 /* some compilers do not like "inline" (or maybe "static inline"), namely: HP cc, IBM xlc */
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54 #if defined(__HP_cc) || defined(__xlc__)
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55 #define LTC_INLINE
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56 #elif defined(_MSC_VER)
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57 #define LTC_INLINE __inline
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58 #else
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59 #define LTC_INLINE inline
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60 #endif
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61
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62 /* type of argument checking, 0=default, 1=fatal and 2=error+continue, 3=nothing */
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63 #ifndef ARGTYPE
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64 #define ARGTYPE 0
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65 #endif
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66
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67 #undef LTC_ENCRYPT
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68 #define LTC_ENCRYPT 0
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69 #undef LTC_DECRYPT
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70 #define LTC_DECRYPT 1
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71
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72 /* Controls endianess and size of registers. Leave uncommented to get platform neutral [slower] code
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73 *
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74 * Note: in order to use the optimized macros your platform must support unaligned 32 and 64 bit read/writes.
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75 * The x86 platforms allow this but some others [ARM for instance] do not. On those platforms you **MUST**
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76 * use the portable [slower] macros.
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77 */
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78 /* detect x86/i386 32bit */
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79 #if defined(__i386__) || defined(__i386) || defined(_M_IX86)
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80 #define ENDIAN_LITTLE
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81 #define ENDIAN_32BITWORD
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82 #define LTC_FAST
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83 #endif
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84
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85 /* detect amd64/x64 */
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86 #if defined(__x86_64__) || defined(_M_X64) || defined(_M_AMD64)
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87 #define ENDIAN_LITTLE
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88 #define ENDIAN_64BITWORD
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89 #define LTC_FAST
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90 #endif
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91
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92 /* detect PPC32 */
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93 #if defined(LTC_PPC32)
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94 #define ENDIAN_BIG
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95 #define ENDIAN_32BITWORD
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96 #define LTC_FAST
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97 #endif
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98
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99 /* detects MIPS R5900 processors (PS2) */
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100 #if (defined(__R5900) || defined(R5900) || defined(__R5900__)) && (defined(_mips) || defined(__mips__) || defined(mips))
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101 #define ENDIAN_64BITWORD
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102 #if defined(_MIPSEB) || defined(__MIPSEB) || defined(__MIPSEB__)
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103 #define ENDIAN_BIG
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104 #endif
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105 #define ENDIAN_LITTLE
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106 #endif
285
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107 #endif
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108
1471
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109 /* detect AIX */
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110 #if defined(_AIX) && defined(_BIG_ENDIAN)
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111 #define ENDIAN_BIG
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112 #if defined(__LP64__) || defined(_ARCH_PPC64)
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113 #define ENDIAN_64BITWORD
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114 #else
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115 #define ENDIAN_32BITWORD
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116 #endif
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117 #endif
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118
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119 /* detect HP-UX */
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120 #if defined(__hpux) || defined(__hpux__)
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121 #define ENDIAN_BIG
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122 #if defined(__ia64) || defined(__ia64__) || defined(__LP64__)
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123 #define ENDIAN_64BITWORD
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124 #else
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125 #define ENDIAN_32BITWORD
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126 #endif
285
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127 #endif
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128
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129 /* detect Apple OS X */
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130 #if defined(__APPLE__) && defined(__MACH__)
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131 #if defined(__LITTLE_ENDIAN__) || defined(__x86_64__)
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132 #define ENDIAN_LITTLE
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133 #else
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134 #define ENDIAN_BIG
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135 #endif
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136 #if defined(__LP64__) || defined(__x86_64__)
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137 #define ENDIAN_64BITWORD
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138 #else
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139 #define ENDIAN_32BITWORD
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140 #endif
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141 #endif
382
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142
1471
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143 /* detect SPARC and SPARC64 */
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144 #if defined(__sparc__) || defined(__sparc)
382
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145 #define ENDIAN_BIG
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146 #if defined(__arch64__) || defined(__sparcv9) || defined(__sparc_v9__)
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147 #define ENDIAN_64BITWORD
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148 #else
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149 #define ENDIAN_32BITWORD
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150 #endif
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151 #endif
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152
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153 /* detect IBM S390(x) */
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154 #if defined(__s390x__) || defined(__s390__)
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155 #define ENDIAN_BIG
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156 #if defined(__s390x__)
382
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157 #define ENDIAN_64BITWORD
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158 #else
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159 #define ENDIAN_32BITWORD
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160 #endif
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161 #endif
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162
1471
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163 /* detect PPC64 */
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164 #if defined(__powerpc64__) || defined(__ppc64__) || defined(__PPC64__)
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165 #define ENDIAN_64BITWORD
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166 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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167 #define ENDIAN_BIG
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168 #elif __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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169 #define ENDIAN_LITTLE
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170 #endif
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171 #define LTC_FAST
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172 #endif
382
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173
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174 /* endianness fallback */
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175 #if !defined(ENDIAN_BIG) && !defined(ENDIAN_LITTLE)
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176 #if defined(_BYTE_ORDER) && _BYTE_ORDER == _BIG_ENDIAN || \
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177 defined(__BYTE_ORDER) && __BYTE_ORDER == __BIG_ENDIAN || \
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178 defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ || \
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179 defined(__BIG_ENDIAN__) || \
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180 defined(__ARMEB__) || defined(__THUMBEB__) || defined(__AARCH64EB__) || \
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181 defined(_MIPSEB) || defined(__MIPSEB) || defined(__MIPSEB__)
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182 #define ENDIAN_BIG
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183 #elif defined(_BYTE_ORDER) && _BYTE_ORDER == _LITTLE_ENDIAN || \
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184 defined(__BYTE_ORDER) && __BYTE_ORDER == __LITTLE_ENDIAN || \
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185 defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ || \
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186 defined(__LITTLE_ENDIAN__) || \
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187 defined(__ARMEL__) || defined(__THUMBEL__) || defined(__AARCH64EL__) || \
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188 defined(_MIPSEL) || defined(__MIPSEL) || defined(__MIPSEL__)
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189 #define ENDIAN_LITTLE
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190 #else
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191 #error Cannot detect endianness
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192 #endif
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193 #endif
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194
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195 /* ulong64: 64-bit data type */
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196 #ifdef _MSC_VER
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197 #define CONST64(n) n ## ui64
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198 typedef unsigned __int64 ulong64;
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199 #else
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200 #define CONST64(n) n ## ULL
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201 typedef unsigned long long ulong64;
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202 #endif
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203
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204 /* ulong32: "32-bit at least" data type */
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205 #if defined(__x86_64__) || defined(_M_X64) || defined(_M_AMD64) || \
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206 defined(__powerpc64__) || defined(__ppc64__) || defined(__PPC64__) || \
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207 defined(__s390x__) || defined(__arch64__) || defined(__aarch64__) || \
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208 defined(__sparcv9) || defined(__sparc_v9__) || defined(__sparc64__) || \
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209 defined(__ia64) || defined(__ia64__) || defined(__itanium__) || defined(_M_IA64) || \
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210 defined(__LP64__) || defined(_LP64) || defined(__64BIT__)
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211 typedef unsigned ulong32;
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212 #if !defined(ENDIAN_64BITWORD) && !defined(ENDIAN_32BITWORD)
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213 #define ENDIAN_64BITWORD
285
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214 #endif
1471
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215 #else
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216 typedef unsigned long ulong32;
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217 #if !defined(ENDIAN_64BITWORD) && !defined(ENDIAN_32BITWORD)
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218 #define ENDIAN_32BITWORD
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219 #endif
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220 #endif
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221
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222 #if defined(ENDIAN_64BITWORD) && !defined(_MSC_VER)
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223 typedef unsigned long long ltc_mp_digit;
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224 #else
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225 typedef unsigned long ltc_mp_digit;
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226 #endif
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227
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228 /* No asm is a quick way to disable anything "not portable" */
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229 #ifdef LTC_NO_ASM
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230 #define ENDIAN_NEUTRAL
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231 #undef ENDIAN_32BITWORD
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232 #undef ENDIAN_64BITWORD
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233 #undef LTC_FAST
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234 #define LTC_NO_ROLC
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235 #define LTC_NO_BSWAP
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236 #endif
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237
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238 /* No LTC_FAST if: explicitly disabled OR non-gcc/non-clang compiler OR old gcc OR using -ansi -std=c99 */
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239 #if defined(LTC_NO_FAST) || (__GNUC__ < 4) || defined(__STRICT_ANSI__)
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240 #undef LTC_FAST
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241 #endif
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242
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243 #ifdef LTC_FAST
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244 #define LTC_FAST_TYPE_PTR_CAST(x) ((LTC_FAST_TYPE*)(void*)(x))
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245 #ifdef ENDIAN_64BITWORD
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246 typedef ulong64 __attribute__((__may_alias__)) LTC_FAST_TYPE;
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247 #else
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248 typedef ulong32 __attribute__((__may_alias__)) LTC_FAST_TYPE;
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249 #endif
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250 #endif
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251
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252 #if !defined(ENDIAN_NEUTRAL) && (defined(ENDIAN_BIG) || defined(ENDIAN_LITTLE)) && !(defined(ENDIAN_32BITWORD) || defined(ENDIAN_64BITWORD))
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253 #error You must specify a word size as well as endianess in tomcrypt_cfg.h
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254 #endif
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255
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256 #if !(defined(ENDIAN_BIG) || defined(ENDIAN_LITTLE))
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257 #define ENDIAN_NEUTRAL
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258 #endif
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259
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260 #if (defined(ENDIAN_32BITWORD) && defined(ENDIAN_64BITWORD))
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261 #error Cannot be 32 and 64 bit words...
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262 #endif
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263
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264 /* gcc 4.3 and up has a bswap builtin; detect it by gcc version.
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265 * clang also supports the bswap builtin, and although clang pretends
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266 * to be gcc (macro-wise, anyway), clang pretends to be a version
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267 * prior to gcc 4.3, so we can't detect bswap that way. Instead,
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268 * clang has a __has_builtin mechanism that can be used to check
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269 * for builtins:
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270 * http://clang.llvm.org/docs/LanguageExtensions.html#feature_check */
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271 #ifndef __has_builtin
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272 #define __has_builtin(x) 0
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273 #endif
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274 #if !defined(LTC_NO_BSWAP) && defined(__GNUC__) && \
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275 ((__GNUC__ * 100 + __GNUC_MINOR__ >= 403) || \
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276 (__has_builtin(__builtin_bswap32) && __has_builtin(__builtin_bswap64)))
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277 #define LTC_HAVE_BSWAP_BUILTIN
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278 #endif
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279
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280
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281 /* ref: $Format:%D$ */
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282 /* git commit: $Format:%H$ */
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283 /* commit time: $Format:%ai$ */