Delphi XE 32位有符号表示法

有谁知道Delphi XE中的32位有符号表示法是否已更改？Delphi XE 32位有符号表示法

我有下面的代码，在德尔福5正常工作：

table: array[0..255] of LongInt = 
($00000000, $77073096, $EE0E612C, $990951BA, 
$076DC419, $706AF48F, $E963A535, $9E6495A3, 
$0EDB8832, $79DCB8A4, $E0D5E91E, $97D2D988, 
$09B64C2B, $7EB17CBD, $E7B82D07, $90BF1D91, 
$1DB71064, $6AB020F2, $F3B97148, $84BE41DE, 
$1ADAD47D, $6DDDE4EB, $F4D4B551, $83D385C7, 
$136C9856, $646BA8C0, $FD62F97A, $8A65C9EC, 
$14015C4F, $63066CD9, $FA0F3D63, $8D080DF5, 
$3B6E20C8, $4C69105E, $D56041E4, $A2677172, 
$3C03E4D1, $4B04D447, $D20D85FD, $A50AB56B, 
$35B5A8FA, $42B2986C, $DBBBC9D6, $ACBCF940, 
$32D86CE3, $45DF5C75, $DCD60DCF, $ABD13D59, 
$26D930AC, $51DE003A, $C8D75180, $BFD06116, 
$21B4F4B5, $56B3C423, $CFBA9599, $B8BDA50F, 
$2802B89E, $5F058808, $C60CD9B2, $B10BE924, 
$2F6F7C87, $58684C11, $C1611DAB, $B6662D3D, 

$76DC4190, $01DB7106, $98D220BC, $EFD5102A, 
$71B18589, $06B6B51F, $9FBFE4A5, $E8B8D433, 
$7807C9A2, $0F00F934, $9609A88E, $E10E9818, 
$7F6A0DBB, $086D3D2D, $91646C97, $E6635C01, 
$6B6B51F4, $1C6C6162, $856530D8, $F262004E, 
$6C0695ED, $1B01A57B, $8208F4C1, $F50FC457, 
$65B0D9C6, $12B7E950, $8BBEB8EA, $FCB9887C, 
$62DD1DDF, $15DA2D49, $8CD37CF3, $FBD44C65, 
$4DB26158, $3AB551CE, $A3BC0074, $D4BB30E2, 
$4ADFA541, $3DD895D7, $A4D1C46D, $D3D6F4FB, 
$4369E96A, $346ED9FC, $AD678846, $DA60B8D0, 
$44042D73, $33031DE5, $AA0A4C5F, $DD0D7CC9, 
$5005713C, $270241AA, $BE0B1010, $C90C2086, 
$5768B525, $206F85B3, $B966D409, $CE61E49F, 
$5EDEF90E, $29D9C998, $B0D09822, $C7D7A8B4, 
$59B33D17, $2EB40D81, $B7BD5C3B, $C0BA6CAD, 
$EDB88320, $9ABFB3B6, $03B6E20C, $74B1D29A, 
$EAD54739, $9DD277AF, $04DB2615, $73DC1683, 
$E3630B12, $94643B84, $0D6D6A3E, $7A6A5AA8, 
$E40ECF0B, $9309FF9D, $0A00AE27, $7D079EB1, 
$F00F9344, $8708A3D2, $1E01F268, $6906C2FE, 
$F762575D, $806567CB, $196C3671, $6E6B06E7, 
$FED41B76, $89D32BE0, $10DA7A5A, $67DD4ACC, 
$F9B9DF6F, $8EBEEFF9, $17B7BE43, $60B08ED5, 
$D6D6A3E8, $A1D1937E, $38D8C2C4, $4FDFF252, 
$D1BB67F1, $A6BC5767, $3FB506DD, $48B2364B, 
$D80D2BDA, $AF0A1B4C, $36034AF6, $41047A60, 
$DF60EFC3, $A867DF55, $316E8EEF, $4669BE79, 
$CB61B38C, $BC66831A, $256FD2A0, $5268E236, 
$CC0C7795, $BB0B4703, $220216B9, $5505262F, 
$C5BA3BBE, $B2BD0B28, $2BB45A92, $5CB36A04, 
$C2D7FFA7, $B5D0CF31, $2CD99E8B, $5BDEAE1D, 
$9B64C2B0, $EC63F226, $756AA39C, $026D930A, 
$9C0906A9, $EB0E363F, $72076785, $05005713, 
$95BF4A82, $E2B87A14, $7BB12BAE, $0CB61B38, 
$92D28E9B, $E5D5BE0D, $7CDCEFB7, $0BDBDF21, 
$86D3D2D4, $F1D4E242, $68DDB3F8, $1FDA836E, 
$81BE16CD, $F6B9265B, $6FB077E1, $18B74777, 
$88085AE6, $FF0F6A70, $66063BCA, $11010B5C, 
$8F659EFF, $F862AE69, $616BFFD3, $166CCF45, 
$A00AE278, $D70DD2EE, $4E048354, $3903B3C2, 
$A7672661, $D06016F7, $4969474D, $3E6E77DB, 
$AED16A4A, $D9D65ADC, $40DF0B66, $37D83BF0, 
$A9BCAE53, $DEBB9EC5, $47B2CF7F, $30B5FFE9, 
$BDBDF21C, $CABAC28A, $53B39330, $24B4A3A6, 
$BAD03605, $CDD70693, $54DE5729, $23D967BF, 
$B3667A2E, $C4614AB8, $5D681B02, $2A6F2B94, 
$B40BBE37, $C30C8EA1, $5A05DF1B, $2D02EF8D);

然而，当我尝试使用德尔福XE编译它，我收到以下错误信息：

[DCC Error] CRC32.pas(34): E2026 Constant expression expected

在像一些要素：
$ EE0E612C
$ 990951BA
$ E963A535
（和其他人，但不是全部）。

有谁知道为什么会发生？

在此先感谢！

来源

2011-01-14 Marcela Rocha

哦，亲爱的。为什么在木星的缘故你想多项式为Lognint？它是一个缺乏适当的无符号类型的TP7上升到一个kludge！（超过15岁） – 2011-01-14 17:40:55

我从Delphi 5迁移到Delphi XE的系统超过15年=/ – 2011-01-17 16:59:06

由于Delphi 2006常量被视为无符号数。你应该用longint（$ EE0E612C）等替换$ EE0E612C 等。

来源

2011-01-14 11:32:34 Giel

尝试：

table: array[0..255] of LongWord =

设置为1的最显著位的常数，因为它签署不接受Longint型值。

LongWord未签名。并没有这样的问题。

您仍然可以使用LongInt，但必须将常量转换为0..7FFFFFFF范围，如果它们是负数，则需要添加一个减号。

是的，Delphi XE（和2010）在这些细节上更挑剔，这并不是坏事。

来源

2011-01-14 11:21:44

使用LongWord（或Cardinal）是解决方案。但错误信息是错误的。 FWIW：在D2007中，我收到了两条消息：正确的一条（关于侵犯的边界）和Marcela的引用。 – 2011-01-14 11:29:15

Delphi XE 32位有符号表示法

回答

相关问题