<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>On 09 Dec 2010, at 22:33, Luis Fernando Del Aguila Mejía wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; font-family: Monaco; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; ">I can not understand the data alignment of records.<br>I compiled the program PackRecordsDemo,<span class="Apple-converted-space"> </span><a href="http://www.freepascal.org/docs-html/ref/refsu16.html#x40-470003.3.2">http://www.freepascal.org/docs-html/ref/refsu16.html#x40-470003.3.2</a><span class="Apple-converted-space"> </span>sample documentation.<br>But the result on my computer is different:<br><br>Size Trec1 : 4 Offset B : 2<br>Size Trec2 : 3 Offset B : 1<br>Size Trec3 : 2 Offset B : 1<br>Size Trec4 : 2 Offset B : 1<br>Size Trec5 : 5 Offset B : 1 Offset C : 4 //diferent<br>Size Trec6 : 5 Offset B : 1 Offset C : 4 //diferent<br>Size Trec7 : 9 Offset B : 1 Offset C : 8 //diferent<br>Size Trec8 : 9 Offset B : 1 Offset C : 8 //diferent<br></span></blockquote><div><br></div><div>The output in the manual is wrong (and it should probably use ptrint rather than longint), and probably from a very old FPC version. The output you posted above is the expected output.</div><br><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; font-family: Monaco; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; ">Can someone explain to me, about the alignment of registration data and other variables.<br></span></blockquote></div><br><div>The alignment of an array is the same as the alignment of its element types, so for an array of byte that is 1 -> all of the array fields are aligned to 1 byte. I don't know what you mean by "registration data".</div><div><br></div><div><br></div><div>Jonas</div></body></html>