Base 16 numbers needing a to f: Difference between revisions
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490 491 492 493 494 495 496 497 498 499
500</pre>
=={{header|Delphi}}==
{{works with|Delphi|6.0}}
{{libheader|SysUtils,StdCtrls}}
An example of using Delphi-style operations using set operators to find hex nibbles A..F
<syntaxhighlight lang="Delphi">
function HasAlphaDigits(W: integer): boolean;
{test if number has A..F in one or more of the digits}
{Only works for numbers up to 9FF or 2559}
begin
Result:=((W and $000F) in [$000A,$000B,$000C,$000D,$000E,$000F]) or
((W and $00F0) in [$00A0,$00B0,$00C0,$00D0,$00E0,$00F0]);
end;
procedure HasNibblesAF(Memo: TMemo);
{Find all numbers 1 through 500 where the hex}
{version has A..F in any of the nibbles}
var I,Cnt: integer;
var S: string;
begin
Cnt:=0;
S:='';
for I:=1 to 500 do
if HasAlphaDigits(I) then
begin
Inc(Cnt);
S:=S+Format('%4.0d', [I]);
if (Cnt mod 20)=0 then S:=S+#$0D+#$0A;
end;
Memo.Text:=S;
Memo.Lines.Add('Count = '+IntToStr(Cnt));
end;
</syntaxhighlight>
{{out}}
<pre>
10 11 12 13 14 15 26 27 28 29 30 31 42 43 44 45 46 47 58 59
60 61 62 63 74 75 76 77 78 79 90 91 92 93 94 95 106 107 108 109
110 111 122 123 124 125 126 127 138 139 140 141 142 143 154 155 156 157 158 159
160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179
180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199
200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219
220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239
240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 266 267 268 269
270 271 282 283 284 285 286 287 298 299 300 301 302 303 314 315 316 317 318 319
330 331 332 333 334 335 346 347 348 349 350 351 362 363 364 365 366 367 378 379
380 381 382 383 394 395 396 397 398 399 410 411 412 413 414 415 416 417 418 419
420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439
440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459
460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479
480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499
500
Count = 301
</pre>
=={{header|F_Sharp|F#}}==
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