author | Claus Gittinger <cg@exept.de> |
Thu, 09 Jun 2016 12:30:05 +0200 | |
changeset 3886 | b4fe47975cce |
parent 3863 | 1ad2dc0cb100 |
child 4045 | df87f891d9bc |
permissions | -rw-r--r-- |
1311 | 1 |
" |
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COPYRIGHT (c) 2003 by eXept Software AG |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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"{ Package: 'stx:libbasic2' }" |
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"{ NameSpace: Smalltalk }" |
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AbstractNumberVector subclass:#UnboxedIntegerArray |
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instanceVariableNames:'' |
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classVariableNames:'' |
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poolDictionaries:'' |
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category:'Collections-Arrayed' |
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! |
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!UnboxedIntegerArray class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 2003 by eXept Software AG |
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All Rights Reserved |
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||
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This software is furnished under a license and may be used |
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31 |
only in accordance with the terms of that license and with the |
|
32 |
inclusion of the above copyright notice. This software may not |
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33 |
be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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! |
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documentation |
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" |
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An abstract superclass for all unboxed integer classes. |
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In contrast to normal arrays (which store pointers to their elements), |
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unboxedIntegerArrays store the values in a dense & compact way. |
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Since the representation fits corresponding underlying C-language representations, |
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these are also useful to pass bulk data to c primitive code. |
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[see also:] |
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ByteArray WordArray BooleanArray FloatArray DoubleArray Array |
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IntegerArray LongIntegerArray SignedLongIntegerArray |
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[author:] |
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Claus Gittinger |
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" |
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! ! |
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!UnboxedIntegerArray class methodsFor:'queries'! |
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isAbstract |
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"Return if this class is an abstract class. |
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True is returned for UnboxedIntegerArray here; false for subclasses. |
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Abstract subclasses must redefine this again." |
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^ self == UnboxedIntegerArray |
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! |
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maxVal |
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"the maximum value which can be stored in instances of me" |
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^ self subclassResponsibility. |
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! |
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minVal |
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"the minimum value which can be stored in instances of me" |
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^ self subclassResponsibility. |
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! ! |
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!UnboxedIntegerArray methodsFor:'accessing'! |
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at:index |
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"return the indexed instance variable with index, anInteger. |
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Trigger an error if the receiver has no indexed instance variables. |
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This method should NOT be redefined in any subclass (except with great care, for tuning)" |
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%{ /* NOCONTEXT */ |
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REGISTER int nbytes, indx; |
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OBJ myClass; |
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REGISTER char *pFirst; |
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REGISTER int n; |
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/* |
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* notice the missing test for self being a nonNilObject - |
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* this can be done since basicAt: is defined both in UndefinedObject |
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* and SmallInteger |
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*/ |
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if (__isSmallInteger(index)) { |
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myClass = __qClass(self); |
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indx = __intVal(index) - 1; |
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n /* nInstVars */ = __intVal(__ClassInstPtr(myClass)->c_ninstvars); |
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n /* nInstBytes */ = OHDR_SIZE + __OBJS2BYTES__(n /* nInstVars */); |
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nbytes = __qSize(self) - n /* nInstBytes */; |
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pFirst = (char *)(__InstPtr(self)) + n /* nInstBytes */; |
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104 |
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switch ((INT)(__ClassInstPtr(myClass)->c_flags) & __MASKSMALLINT(ARRAYMASK)) { |
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case __MASKSMALLINT(WORDARRAY): |
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/* |
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* unsigned 16bit ints |
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*/ |
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/* Notice: the hard coded shifts are by purpose; |
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* it makes us independent of the short-size of the machine |
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*/ |
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113 |
if ((unsigned)indx < (nbytes>>1)) { |
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114 |
unsigned short *sp; |
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115 |
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sp = (unsigned short *)(pFirst + (indx<<1)); |
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RETURN ( __MKSMALLINT( (INT)(*sp & 0xFFFF)) ); |
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} |
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break; |
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120 |
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121 |
case __MASKSMALLINT(SWORDARRAY): |
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122 |
/* |
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123 |
* signed 16bit ints |
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124 |
*/ |
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125 |
/* Notice: the hard coded shifts are by purpose; |
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126 |
* it makes us independent of the short-size of the machine |
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127 |
*/ |
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128 |
if ((unsigned)indx < (nbytes>>1)) { |
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129 |
short *ssp; |
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130 |
|
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131 |
ssp = (short *)(pFirst + (indx<<1)); |
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132 |
RETURN ( __MKSMALLINT( (INT)(*ssp) )); |
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133 |
} |
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134 |
break; |
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135 |
|
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136 |
case __MASKSMALLINT(LONGARRAY): |
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137 |
/* |
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138 |
* unsigned 32bit ints |
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139 |
*/ |
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|
140 |
/* Notice: the hard coded shifts are by purpose; |
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141 |
* it makes us independent of the int-size of the machine |
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142 |
*/ |
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143 |
if ((unsigned)indx < (nbytes>>2)) { |
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144 |
unsigned int32 ul; |
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145 |
unsigned int32 *lp; |
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146 |
|
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147 |
lp = (unsigned int32 *)(pFirst + (indx<<2)); |
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148 |
ul = *lp; |
1563
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alpha64 vs. POINTER_SIZE cleanup
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149 |
#if __POINTER_SIZE__ == 8 |
1423
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150 |
{ |
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151 |
unsigned INT ull = (unsigned INT)ul; |
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152 |
RETURN ( __MKSMALLINT(ull) ); |
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153 |
} |
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154 |
#else |
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155 |
if (ul <= _MAX_INT) { |
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156 |
RETURN ( __MKSMALLINT(ul) ); |
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157 |
} |
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158 |
RETURN ( __MKULARGEINT(ul) ); |
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159 |
#endif |
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160 |
} |
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161 |
break; |
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162 |
|
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163 |
case __MASKSMALLINT(SLONGARRAY): |
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164 |
/* |
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165 |
* signed 32bit ints |
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166 |
*/ |
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parents:
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167 |
/* Notice: the hard coded shifts are by purpose; |
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Define #at: (like Array, same as Object>>basicAt:) for speed.
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parents:
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168 |
* it makes us independent of the int-size of the machine |
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169 |
*/ |
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170 |
if ((unsigned)indx < (nbytes>>2)) { |
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171 |
int32 *slp; |
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172 |
int32 l; |
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173 |
|
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174 |
slp = (int32 *)(pFirst + (indx<<2)); |
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l = *slp; |
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176 |
#if __POINTER_SIZE__ == 8 |
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177 |
{ |
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178 |
INT ll = (INT)l; |
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179 |
RETURN ( __MKSMALLINT(ll) ); |
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} |
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181 |
#else |
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182 |
if (__ISVALIDINTEGER(l)) { |
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183 |
RETURN ( __MKSMALLINT(l) ); |
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184 |
} |
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185 |
RETURN ( __MKLARGEINT(l) ); |
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186 |
#endif |
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187 |
} |
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188 |
break; |
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189 |
|
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190 |
case __MASKSMALLINT(SLONGLONGARRAY): |
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191 |
/* |
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192 |
* signed 64bit longlongs |
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193 |
*/ |
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194 |
#ifdef __NEED_LONGLONG_ALIGN |
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195 |
if ((INT)pFirst & (__LONGLONG_ALIGN-1)) { |
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196 |
int delta = __LONGLONG_ALIGN - ((INT)pFirst & (__LONGLONG_ALIGN-1)); |
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197 |
|
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198 |
pFirst += delta; |
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199 |
nbytes -= delta; |
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200 |
} |
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201 |
#endif |
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202 |
/* Notice: the hard coded shifts are by purpose; |
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203 |
* it makes us independent of the long/longlong-size of the machine |
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204 |
*/ |
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205 |
if ((unsigned)indx < (nbytes>>3)) { |
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|
206 |
#if __POINTER_SIZE__ == 8 |
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207 |
INT *slp, ll; |
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208 |
|
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209 |
slp = (INT *)(pFirst + (indx<<3)); |
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210 |
ll = *slp; |
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211 |
if (__ISVALIDINTEGER(ll)) { |
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212 |
RETURN ( __MKSMALLINT(ll) ); |
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213 |
} |
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214 |
RETURN ( __MKLARGEINT(ll) ); |
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215 |
#else |
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216 |
__int64__ *llp; |
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217 |
|
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218 |
llp = (__int64__ *)(pFirst + (indx<<3)); |
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219 |
RETURN (__MKINT64(llp)); |
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220 |
#endif |
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221 |
} |
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222 |
break; |
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|
223 |
|
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224 |
case __MASKSMALLINT(LONGLONGARRAY): |
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225 |
/* |
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226 |
* unsigned 64bit longlongs |
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227 |
*/ |
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|
228 |
#ifdef __NEED_LONGLONG_ALIGN |
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229 |
if ((INT)pFirst & (__LONGLONG_ALIGN-1)) { |
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230 |
int delta = __LONGLONG_ALIGN - ((INT)pFirst & (__LONGLONG_ALIGN-1)); |
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|
231 |
|
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232 |
pFirst += delta; |
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|
233 |
nbytes -= delta; |
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234 |
} |
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|
235 |
#endif |
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|
236 |
/* Notice: the hard coded shifts are by purpose; |
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237 |
* it makes us independent of the long/longlong-size of the machine |
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|
238 |
*/ |
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|
239 |
if ((unsigned)indx < (nbytes>>3)) { |
1563
685e88155bbd
alpha64 vs. POINTER_SIZE cleanup
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parents:
1557
diff
changeset
|
240 |
#if __POINTER_SIZE__ == 8 |
1423
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|
241 |
unsigned INT *ulp, ul; |
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|
242 |
|
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|
243 |
ulp = (unsigned INT *)(pFirst + (indx<<3)); |
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|
244 |
ul = *ulp; |
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Define #at: (like Array, same as Object>>basicAt:) for speed.
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|
245 |
if (ul <= _MAX_INT) { |
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Define #at: (like Array, same as Object>>basicAt:) for speed.
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|
246 |
RETURN ( __MKSMALLINT(ul) ); |
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Define #at: (like Array, same as Object>>basicAt:) for speed.
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|
247 |
} |
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Define #at: (like Array, same as Object>>basicAt:) for speed.
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|
248 |
RETURN ( __MKULARGEINT(ul) ); |
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Define #at: (like Array, same as Object>>basicAt:) for speed.
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|
249 |
#else |
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Define #at: (like Array, same as Object>>basicAt:) for speed.
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|
250 |
__uint64__ *llp; |
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Define #at: (like Array, same as Object>>basicAt:) for speed.
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|
251 |
|
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252 |
llp = (__uint64__ *)(pFirst + (indx<<3)); |
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Define #at: (like Array, same as Object>>basicAt:) for speed.
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|
253 |
RETURN (__MKUINT64(llp)); |
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Define #at: (like Array, same as Object>>basicAt:) for speed.
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|
254 |
#endif |
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Define #at: (like Array, same as Object>>basicAt:) for speed.
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|
255 |
} |
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Define #at: (like Array, same as Object>>basicAt:) for speed.
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|
256 |
break; |
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Define #at: (like Array, same as Object>>basicAt:) for speed.
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|
257 |
} |
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Define #at: (like Array, same as Object>>basicAt:) for speed.
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|
258 |
} |
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Define #at: (like Array, same as Object>>basicAt:) for speed.
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|
259 |
%}. |
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Define #at: (like Array, same as Object>>basicAt:) for speed.
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|
260 |
^ self indexNotIntegerOrOutOfBounds:index |
2712 | 261 |
! |
262 |
||
263 |
byteAt:index |
|
264 |
"treating the receiver as a stream of bytes in native byteorder, |
|
3541 | 265 |
return an individual byte" |
2712 | 266 |
|
3541 | 267 |
|lVal elementByteSize| |
268 |
||
269 |
elementByteSize := self class elementByteSize. |
|
2712 | 270 |
|
3541 | 271 |
lVal := self at:((index - 1) // elementByteSize) + 1. |
272 |
IsBigEndian ifTrue:[ |
|
273 |
^ lVal digitAt:(4 - ((index - 1) \\ elementByteSize)). |
|
2712 | 274 |
]. |
3541 | 275 |
^ lVal digitAt:((index - 1) \\ elementByteSize) + 1. |
2712 | 276 |
|
277 |
" |
|
278 |
(IntegerArray new:2) |
|
279 |
at:1 put:16r12345678; |
|
280 |
at:2 put:16r9abcdef0; |
|
281 |
byteAt:5 |
|
282 |
" |
|
283 |
||
284 |
"Created: / 27-02-2012 / 20:58:47 / cg" |
|
1423
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|
285 |
! ! |
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|
286 |
|
1414
e801d1248f10
printing code shared for 16- and 32bit arrays
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|
287 |
!UnboxedIntegerArray methodsFor:'printing'! |
e801d1248f10
printing code shared for 16- and 32bit arrays
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|
288 |
|
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|
289 |
printOn:aStream base:radix showRadix:showRadix |
e801d1248f10
printing code shared for 16- and 32bit arrays
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|
290 |
"append a printed representation to aStream in the given number base." |
e801d1248f10
printing code shared for 16- and 32bit arrays
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|
291 |
|
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printing code shared for 16- and 32bit arrays
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|
292 |
(self class == WordArray or:[self class == LongIntegerArray]) |
e801d1248f10
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|
293 |
ifTrue:[ "/ care for subclasses |
e801d1248f10
printing code shared for 16- and 32bit arrays
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|
294 |
aStream nextPutAll:'#('. |
e801d1248f10
printing code shared for 16- and 32bit arrays
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|
295 |
self |
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|
296 |
do:[:word | word printOn:aStream base:radix showRadix:showRadix] |
e801d1248f10
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|
297 |
separatedBy:[aStream space]. |
e801d1248f10
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|
298 |
aStream nextPut:$). |
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|
299 |
^ self |
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|
300 |
]. |
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printing code shared for 16- and 32bit arrays
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parents:
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diff
changeset
|
301 |
^ self printOn:aStream |
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printing code shared for 16- and 32bit arrays
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parents:
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diff
changeset
|
302 |
! ! |
e801d1248f10
printing code shared for 16- and 32bit arrays
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
303 |
|
1178 | 304 |
!UnboxedIntegerArray methodsFor:'queries'! |
305 |
||
306 |
defaultElement |
|
307 |
^ 0 |
|
308 |
! ! |
|
309 |
||
310 |
!UnboxedIntegerArray class methodsFor:'documentation'! |
|
311 |
||
312 |
version |
|
3734 | 313 |
^ '$Header$' |
1178 | 314 |
! ! |
3541 | 315 |