annotate src/macros.h @ 10590:3a140c0778e0

Added tag v8.0.0184 for changeset b0c9c1a050543d0cca567ff7b7464a2a1a62e364
author Christian Brabandt <cb@256bit.org>
date Sat, 14 Jan 2017 19:30:04 +0100
parents e70ff5756201
children 778c10516955
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* vi:set ts=8 sts=4 sw=4 noet:
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2 *
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3 * VIM - Vi IMproved by Bram Moolenaar
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4 *
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5 * Do ":help uganda" in Vim to read copying and usage conditions.
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6 * Do ":help credits" in Vim to see a list of people who contributed.
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7 */
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8
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9 /*
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10 * macros.h: macro definitions for often used code
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11 */
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12
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13 /*
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14 * pchar(lp, c) - put character 'c' at position 'lp'
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15 */
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16 #define pchar(lp, c) (*(ml_get_buf(curbuf, (lp).lnum, TRUE) + (lp).col) = (c))
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17
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18 /*
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19 * Position comparisons
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20 */
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21 #ifdef FEAT_VIRTUALEDIT
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22 # define lt(a, b) (((a).lnum != (b).lnum) \
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23 ? (a).lnum < (b).lnum \
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24 : (a).col != (b).col \
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25 ? (a).col < (b).col \
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26 : (a).coladd < (b).coladd)
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27 # define ltp(a, b) (((a)->lnum != (b)->lnum) \
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28 ? (a)->lnum < (b)->lnum \
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29 : (a)->col != (b)->col \
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30 ? (a)->col < (b)->col \
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31 : (a)->coladd < (b)->coladd)
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32 # define equalpos(a, b) (((a).lnum == (b).lnum) && ((a).col == (b).col) && ((a).coladd == (b).coladd))
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33 # define clearpos(a) {(a)->lnum = 0; (a)->col = 0; (a)->coladd = 0;}
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34 #else
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35 # define lt(a, b) (((a).lnum != (b).lnum) \
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36 ? ((a).lnum < (b).lnum) : ((a).col < (b).col))
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37 # define ltp(a, b) (((a)->lnum != (b)->lnum) \
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38 ? ((a)->lnum < (b)->lnum) : ((a)->col < (b)->col))
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39 # define equalpos(a, b) (((a).lnum == (b).lnum) && ((a).col == (b).col))
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40 # define clearpos(a) {(a)->lnum = 0; (a)->col = 0;}
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41 #endif
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42
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43 #define ltoreq(a, b) (lt(a, b) || equalpos(a, b))
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44
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45 /*
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46 * lineempty() - return TRUE if the line is empty
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47 */
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48 #define lineempty(p) (*ml_get(p) == NUL)
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49
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50 /*
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51 * bufempty() - return TRUE if the current buffer is empty
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52 */
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53 #define bufempty() (curbuf->b_ml.ml_line_count == 1 && *ml_get((linenr_T)1) == NUL)
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54
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55 /*
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56 * toupper() and tolower() that use the current locale.
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57 * On some systems toupper()/tolower() only work on lower/uppercase
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58 * characters, first use islower() or isupper() then.
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59 * Careful: Only call TOUPPER_LOC() and TOLOWER_LOC() with a character in the
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60 * range 0 - 255. toupper()/tolower() on some systems can't handle others.
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61 * Note: It is often better to use MB_TOLOWER() and MB_TOUPPER(), because many
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62 * toupper() and tolower() implementations only work for ASCII.
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63 */
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64 #ifdef MSWIN
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65 # define TOUPPER_LOC(c) toupper_tab[(c) & 255]
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66 # define TOLOWER_LOC(c) tolower_tab[(c) & 255]
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67 #else
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68 # ifdef BROKEN_TOUPPER
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69 # define TOUPPER_LOC(c) (islower(c) ? toupper(c) : (c))
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70 # define TOLOWER_LOC(c) (isupper(c) ? tolower(c) : (c))
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71 # else
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72 # define TOUPPER_LOC toupper
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73 # define TOLOWER_LOC tolower
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74 # endif
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75 #endif
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76
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77 /* toupper() and tolower() for ASCII only and ignore the current locale. */
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78 #ifdef EBCDIC
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79 # define TOUPPER_ASC(c) (islower(c) ? toupper(c) : (c))
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80 # define TOLOWER_ASC(c) (isupper(c) ? tolower(c) : (c))
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81 #else
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82 # define TOUPPER_ASC(c) (((c) < 'a' || (c) > 'z') ? (c) : (c) - ('a' - 'A'))
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83 # define TOLOWER_ASC(c) (((c) < 'A' || (c) > 'Z') ? (c) : (c) + ('a' - 'A'))
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84 #endif
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85
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86 /*
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87 * MB_ISLOWER() and MB_ISUPPER() are to be used on multi-byte characters. But
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88 * don't use them for negative values!
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89 */
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90 #ifdef FEAT_MBYTE
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91 # define MB_ISLOWER(c) vim_islower(c)
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92 # define MB_ISUPPER(c) vim_isupper(c)
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93 # define MB_TOLOWER(c) vim_tolower(c)
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94 # define MB_TOUPPER(c) vim_toupper(c)
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95 #else
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96 # define MB_ISLOWER(c) islower(c)
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97 # define MB_ISUPPER(c) isupper(c)
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98 # define MB_TOLOWER(c) TOLOWER_LOC(c)
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99 # define MB_TOUPPER(c) TOUPPER_LOC(c)
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100 #endif
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101
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102 /* Use our own isdigit() replacement, because on MS-Windows isdigit() returns
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103 * non-zero for superscript 1. Also avoids that isdigit() crashes for numbers
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104 * below 0 and above 255. */
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105 #define VIM_ISDIGIT(c) ((unsigned)(c) - '0' < 10)
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106
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107 /* Like isalpha() but reject non-ASCII characters. Can't be used with a
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108 * special key (negative value). */
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109 #ifdef EBCDIC
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110 # define ASCII_ISALPHA(c) isalpha(c)
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111 # define ASCII_ISALNUM(c) isalnum(c)
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112 # define ASCII_ISLOWER(c) islower(c)
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113 # define ASCII_ISUPPER(c) isupper(c)
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114 #else
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115 # define ASCII_ISLOWER(c) ((unsigned)(c) - 'a' < 26)
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116 # define ASCII_ISUPPER(c) ((unsigned)(c) - 'A' < 26)
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117 # define ASCII_ISALPHA(c) (ASCII_ISUPPER(c) || ASCII_ISLOWER(c))
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118 # define ASCII_ISALNUM(c) (ASCII_ISALPHA(c) || VIM_ISDIGIT(c))
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119 #endif
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120
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121 /* Returns empty string if it is NULL. */
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122 #define EMPTY_IF_NULL(x) ((x) ? (x) : (char_u *)"")
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123
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124 #ifdef FEAT_LANGMAP
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125 /*
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126 * Adjust chars in a language according to 'langmap' option.
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127 * NOTE that there is no noticeable overhead if 'langmap' is not set.
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128 * When set the overhead for characters < 256 is small.
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129 * Don't apply 'langmap' if the character comes from the Stuff buffer or from
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130 * a mapping and the langnoremap option was set.
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131 * The do-while is just to ignore a ';' after the macro.
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132 */
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133 # ifdef FEAT_MBYTE
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134 # define LANGMAP_ADJUST(c, condition) \
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135 do { \
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136 if (*p_langmap \
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137 && (condition) \
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138 && (p_lrm || (!p_lrm && KeyTyped)) \
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139 && !KeyStuffed \
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140 && (c) >= 0) \
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141 { \
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142 if ((c) < 256) \
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143 c = langmap_mapchar[c]; \
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144 else \
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145 c = langmap_adjust_mb(c); \
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146 } \
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147 } while (0)
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148 # else
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149 # define LANGMAP_ADJUST(c, condition) \
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150 do { \
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151 if (*p_langmap \
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152 && (condition) \
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153 && (p_lrm || (!p_lrm && KeyTyped)) \
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154 && !KeyStuffed \
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155 && (c) >= 0 && (c) < 256) \
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156 c = langmap_mapchar[c]; \
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157 } while (0)
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158 # endif
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159 #else
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160 # define LANGMAP_ADJUST(c, condition) /* nop */
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161 #endif
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162
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163 /*
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164 * vim_isbreak() is used very often if 'linebreak' is set, use a macro to make
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165 * it work fast.
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166 */
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167 #define vim_isbreak(c) (breakat_flags[(char_u)(c)])
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168
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169 /*
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170 * On VMS file names are different and require a translation.
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171 * On the Mac open() has only two arguments.
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172 */
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173 #ifdef VMS
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174 # define mch_access(n, p) access(vms_fixfilename(n), (p))
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175 /* see mch_open() comment */
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176 # define mch_fopen(n, p) fopen(vms_fixfilename(n), (p))
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177 # define mch_fstat(n, p) fstat(vms_fixfilename(n), (p))
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178 /* VMS does not have lstat() */
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179 # define mch_stat(n, p) stat(vms_fixfilename(n), (p))
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180 # define mch_rmdir(n) rmdir(vms_fixfilename(n))
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181 #else
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182 # ifndef WIN32
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183 # define mch_access(n, p) access((n), (p))
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184 # endif
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185 # if !(defined(FEAT_MBYTE) && defined(WIN3264))
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186 # define mch_fopen(n, p) fopen((n), (p))
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187 # endif
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188 # define mch_fstat(n, p) fstat((n), (p))
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189 # ifdef MSWIN /* has it's own mch_stat() function */
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190 # define mch_stat(n, p) vim_stat((n), (p))
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191 # else
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192 # ifdef STAT_IGNORES_SLASH
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193 /* On Solaris stat() accepts "file/" as if it was "file". Return -1 if
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194 * the name ends in "/" and it's not a directory. */
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195 # define mch_stat(n, p) (illegal_slash(n) ? -1 : stat((n), (p)))
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196 # else
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197 # define mch_stat(n, p) stat((n), (p))
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198 # endif
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199 # endif
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200 #endif
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201
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202 #ifdef HAVE_LSTAT
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203 # define mch_lstat(n, p) lstat((n), (p))
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204 #else
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205 # define mch_lstat(n, p) mch_stat((n), (p))
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206 #endif
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207
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208 #ifdef MACOS_CLASSIC
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209 /* MacOS classic doesn't support perm but MacOS X does. */
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210 # define mch_open(n, m, p) open((n), (m))
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211 #else
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212 # ifdef VMS
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213 /*
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214 * It is possible to force some record format with:
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215 * # define mch_open(n, m, p) open(vms_fixfilename(n), (m), (p)), "rat=cr", "rfm=stmlf", "mrs=0")
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216 * but it is not recommended, because it can destroy indexes etc.
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217 */
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218 # define mch_open(n, m, p) open(vms_fixfilename(n), (m), (p))
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219 # else
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220 # if !(defined(FEAT_MBYTE) && defined(WIN3264))
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221 # define mch_open(n, m, p) open((n), (m), (p))
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222 # endif
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223 # endif
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224 #endif
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225
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226 /* mch_open_rw(): invoke mch_open() with third argument for user R/W. */
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227 #if defined(UNIX) || defined(VMS) /* open in rw------- mode */
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228 # define mch_open_rw(n, f) mch_open((n), (f), (mode_t)0600)
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229 #else
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230 # if defined(MSWIN) /* open read/write */
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231 # define mch_open_rw(n, f) mch_open((n), (f), S_IREAD | S_IWRITE)
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232 # else
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233 # define mch_open_rw(n, f) mch_open((n), (f), 0)
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234 # endif
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235 #endif
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236
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237 #ifdef STARTUPTIME
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238 # define TIME_MSG(s) { if (time_fd != NULL) time_msg(s, NULL); }
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239 #else
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240 # define TIME_MSG(s)
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241 #endif
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242
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243 #ifdef FEAT_VREPLACE
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244 # define REPLACE_NORMAL(s) (((s) & REPLACE_FLAG) && !((s) & VREPLACE_FLAG))
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245 #else
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246 # define REPLACE_NORMAL(s) ((s) & REPLACE_FLAG)
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247 #endif
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248
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249 #ifdef FEAT_ARABIC
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250 # define UTF_COMPOSINGLIKE(p1, p2) utf_composinglike((p1), (p2))
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251 #else
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252 # define UTF_COMPOSINGLIKE(p1, p2) utf_iscomposing(utf_ptr2char(p2))
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253 #endif
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254
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255 #ifdef FEAT_RIGHTLEFT
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256 /* Whether to draw the vertical bar on the right side of the cell. */
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257 # define CURSOR_BAR_RIGHT (curwin->w_p_rl && (!(State & CMDLINE) || cmdmsg_rl))
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258 #endif
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259
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260 /*
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261 * mb_ptr_adv(): advance a pointer to the next character, taking care of
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262 * multi-byte characters if needed.
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263 * mb_ptr_back(): backup a pointer to the previous character, taking care of
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264 * multi-byte characters if needed.
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265 * MB_COPY_CHAR(f, t): copy one char from "f" to "t" and advance the pointers.
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266 * PTR2CHAR(): get character from pointer.
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267 */
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268 #ifdef FEAT_MBYTE
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269 /* Get the length of the character p points to */
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270 # define MB_PTR2LEN(p) (has_mbyte ? (*mb_ptr2len)(p) : 1)
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271 /* Advance multi-byte pointer, skip over composing chars. */
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272 # define mb_ptr_adv(p) p += has_mbyte ? (*mb_ptr2len)(p) : 1
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273 /* Advance multi-byte pointer, do not skip over composing chars. */
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274 # define mb_cptr_adv(p) p += enc_utf8 ? utf_ptr2len(p) : has_mbyte ? (*mb_ptr2len)(p) : 1
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275 /* Backup multi-byte pointer. Only use with "p" > "s" ! */
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276 # define mb_ptr_back(s, p) p -= has_mbyte ? ((*mb_head_off)(s, p - 1) + 1) : 1
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277 /* get length of multi-byte char, not including composing chars */
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278 # define MB_CPTR2LEN(p) (enc_utf8 ? utf_ptr2len(p) : (*mb_ptr2len)(p))
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279
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280 # define MB_COPY_CHAR(f, t) if (has_mbyte) mb_copy_char(&f, &t); else *t++ = *f++
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281 # define MB_CHARLEN(p) (has_mbyte ? mb_charlen(p) : (int)STRLEN(p))
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282 # define MB_CHAR2LEN(c) (has_mbyte ? mb_char2len(c) : 1)
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283 # define PTR2CHAR(p) (has_mbyte ? mb_ptr2char(p) : (int)*(p))
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284 #else
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285 # define MB_PTR2LEN(p) 1
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286 # define MB_CPTR2LEN(p) 1
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287 # define mb_ptr_adv(p) ++p
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288 # define mb_cptr_adv(p) ++p
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289 # define mb_ptr_back(s, p) --p
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290 # define MB_COPY_CHAR(f, t) *t++ = *f++
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291 # define MB_CHARLEN(p) STRLEN(p)
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292 # define MB_CHAR2LEN(c) 1
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293 # define PTR2CHAR(p) ((int)*(p))
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294 #endif
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295
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296 #ifdef FEAT_AUTOCHDIR
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297 # define DO_AUTOCHDIR if (p_acd) do_autochdir();
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298 #else
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299 # define DO_AUTOCHDIR
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300 #endif
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301
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302 #if defined(FEAT_SCROLLBIND) && defined(FEAT_CURSORBIND)
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303 # define RESET_BINDING(wp) (wp)->w_p_scb = FALSE; (wp)->w_p_crb = FALSE
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304 #else
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305 # if defined(FEAT_SCROLLBIND)
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306 # define RESET_BINDING(wp) (wp)->w_p_scb = FALSE
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307 # else
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308 # if defined(FEAT_CURSORBIND)
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309 # define RESET_BINDING(wp) (wp)->w_p_crb = FALSE
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310 # else
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311 # define RESET_BINDING(wp)
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312 # endif
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313 # endif
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314 #endif
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315
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316 #ifdef FEAT_DIFF
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317 # define PLINES_NOFILL(x) plines_nofill(x)
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318 #else
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319 # define PLINES_NOFILL(x) plines(x)
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320 #endif
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321
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322 #if defined(FEAT_JOB_CHANNEL) || defined(FEAT_CLIENTSERVER)
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323 # define MESSAGE_QUEUE
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324 #endif
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325
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326 #if defined(FEAT_EVAL) && defined(FEAT_FLOAT)
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327 # include <float.h>
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328 # if defined(HAVE_MATH_H)
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329 /* for isnan() and isinf() */
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330 # include <math.h>
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331 # endif
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332 # ifdef USING_FLOAT_STUFF
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333 # if defined(WIN32)
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334 # ifndef isnan
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335 # define isnan(x) _isnan(x)
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336 static __inline int isinf(double x) { return !_finite(x) && !_isnan(x); }
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337 # endif
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338 # else
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339 # ifndef HAVE_ISNAN
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340 static inline int isnan(double x) { return x != x; }
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341 # endif
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342 # ifndef HAVE_ISINF
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343 static inline int isinf(double x) { return !isnan(x) && isnan(x - x); }
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344 # endif
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345 # endif
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346 # if !defined(INFINITY)
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347 # if defined(DBL_MAX)
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348 # ifdef VMS
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349 # define INFINITY DBL_MAX
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350 # else
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351 # define INFINITY (DBL_MAX+DBL_MAX)
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352 # endif
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353 # else
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354 # define INFINITY (1.0 / 0.0)
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355 # endif
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356 # endif
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357 # if !defined(NAN)
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358 # define NAN (INFINITY-INFINITY)
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359 # endif
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360 # endif
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361 #endif
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362
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363 /*
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364 * In a hashtab item "hi_key" points to "di_key" in a dictitem.
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365 * This avoids adding a pointer to the hashtab item.
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366 * DI2HIKEY() converts a dictitem pointer to a hashitem key pointer.
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367 * HIKEY2DI() converts a hashitem key pointer to a dictitem pointer.
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368 * HI2DI() converts a hashitem pointer to a dictitem pointer.
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369 */
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370 # define DI2HIKEY(di) ((di)->di_key)
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371 # define HIKEY2DI(p) ((dictitem_T *)(p - offsetof(dictitem_T, di_key)))
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372 # define HI2DI(hi) HIKEY2DI((hi)->hi_key)