| 1 | ## oils_failures_allowed: 0
|
| 2 |
|
| 3 | #### Minus operator is left associative
|
| 4 |
|
| 5 | var a = 1 - 0 - 1
|
| 6 | var b = (1 - 0) - 1
|
| 7 | echo a=$a b=$b
|
| 8 |
|
| 9 | var a = 3 - 1 - 2
|
| 10 | var b = (3 - 1) - 2
|
| 11 | echo a=$a b=$b
|
| 12 |
|
| 13 | ## STDOUT:
|
| 14 | a=0 b=0
|
| 15 | a=0 b=0
|
| 16 | ## END
|
| 17 |
|
| 18 | #### Division operators are left associative
|
| 19 |
|
| 20 | var a = 10 / 4 / 2
|
| 21 | var b = 10 / 4 / 2
|
| 22 | echo a=$a b=$b
|
| 23 |
|
| 24 | var a = 9 // 3 // 3
|
| 25 | var b = (9 // 3) // 3
|
| 26 | echo a=$a b=$b
|
| 27 |
|
| 28 | var a = 11 % 6 % 3
|
| 29 | var b = (11 % 6) % 3
|
| 30 | echo a=$a b=$b
|
| 31 |
|
| 32 | ## STDOUT:
|
| 33 | a=1.25 b=1.25
|
| 34 | a=1 b=1
|
| 35 | a=2 b=2
|
| 36 | ## END
|
| 37 |
|
| 38 | #### Exponentiation is right associative
|
| 39 |
|
| 40 | var a = 3 ** 2 ** 2
|
| 41 | var b = 3 ** (2 ** 2)
|
| 42 | echo a=$a b=$b
|
| 43 |
|
| 44 | ## STDOUT:
|
| 45 | a=81 b=81
|
| 46 | ## END
|
| 47 |
|
| 48 | #### Binary operators, with conversions from string
|
| 49 |
|
| 50 | echo ' i i' $[1 + 2]
|
| 51 | echo 'si i' $['1' + 2]
|
| 52 | echo ' i si' $[1 + '2']
|
| 53 | echo ---
|
| 54 |
|
| 55 | echo ' f f' $[2.5 - 1.5]
|
| 56 | echo 'sf f' $['2.5' - 1.5]
|
| 57 | echo ' f sf' $[2.5 - '1.5']
|
| 58 | echo ---
|
| 59 |
|
| 60 | echo ' i f' $[4 * 1.5]
|
| 61 | echo 'si f' $['4' * 1.5]
|
| 62 | echo ' i sf' $[4 * '1.5']
|
| 63 | echo ---
|
| 64 |
|
| 65 | echo ' f i' $[5.0 / 2]
|
| 66 | echo 'sf i' $['5.0' / 2]
|
| 67 | echo ' f si' $[5.0 / '2']
|
| 68 |
|
| 69 | ## STDOUT:
|
| 70 | i i 3
|
| 71 | si i 3
|
| 72 | i si 3
|
| 73 | ---
|
| 74 | f f 1.0
|
| 75 | sf f 1.0
|
| 76 | f sf 1.0
|
| 77 | ---
|
| 78 | i f 6.0
|
| 79 | si f 6.0
|
| 80 | i sf 6.0
|
| 81 | ---
|
| 82 | f i 2.5
|
| 83 | sf i 2.5
|
| 84 | f si 2.5
|
| 85 | ## END
|
| 86 |
|
| 87 | #### Floating Point Division with /
|
| 88 |
|
| 89 | var i = '1.0' / '0.05'
|
| 90 |
|
| 91 | echo $i
|
| 92 |
|
| 93 | ## STDOUT:
|
| 94 | 20.0
|
| 95 | ## END
|
| 96 |
|
| 97 |
|
| 98 | #### Operations That Convert to Integer: // % **
|
| 99 | shopt -s parse_brace
|
| 100 |
|
| 101 | var m = ' 5 ' // 2
|
| 102 |
|
| 103 | var n = ' 5 ' % 2
|
| 104 |
|
| 105 | var p = ' 5 ' ** 2
|
| 106 |
|
| 107 | write -- $m $n $p
|
| 108 |
|
| 109 | try {
|
| 110 | var z = 'a' // 3
|
| 111 | }
|
| 112 | echo _status $_status
|
| 113 |
|
| 114 | try {
|
| 115 | var z = 'z' % 3
|
| 116 | }
|
| 117 | echo _status $_status
|
| 118 |
|
| 119 | ## STDOUT:
|
| 120 | 2
|
| 121 | 1
|
| 122 | 25
|
| 123 | _status 3
|
| 124 | _status 3
|
| 125 | ## END
|
| 126 |
|
| 127 | #### Division by zero
|
| 128 | shopt -s parse_brace
|
| 129 |
|
| 130 | try {
|
| 131 | = 42 / 0
|
| 132 | }
|
| 133 | echo "status / is $_status"
|
| 134 |
|
| 135 | try {
|
| 136 | = 42 // 0
|
| 137 | }
|
| 138 | echo "status // is $_status"
|
| 139 |
|
| 140 | try {
|
| 141 | = 42 % 0
|
| 142 | }
|
| 143 | echo "status % is $_status"
|
| 144 |
|
| 145 | ## STDOUT:
|
| 146 | status / is 3
|
| 147 | status // is 3
|
| 148 | status % is 3
|
| 149 | ## END
|
| 150 |
|
| 151 | #### Unary Operations
|
| 152 |
|
| 153 | var a = ~1
|
| 154 |
|
| 155 | var b = -1
|
| 156 | var c = -2.3
|
| 157 |
|
| 158 | var d = not true
|
| 159 |
|
| 160 |
|
| 161 | write -- $a $b $c $d
|
| 162 |
|
| 163 | ## STDOUT:
|
| 164 | -2
|
| 165 | -1
|
| 166 | -2.3
|
| 167 | false
|
| 168 | ## END
|
| 169 |
|
| 170 | #### Unary plus on integers and floats
|
| 171 |
|
| 172 | var a = +1
|
| 173 | var b = +42
|
| 174 | var c = +2.5
|
| 175 |
|
| 176 | var d = -10
|
| 177 | var e = +d
|
| 178 |
|
| 179 | write -- $a $b $c $e
|
| 180 |
|
| 181 | ## STDOUT:
|
| 182 | 1
|
| 183 | 42
|
| 184 | 2.5
|
| 185 | -10
|
| 186 | ## END
|
| 187 |
|
| 188 | #### unary plus and minus combined
|
| 189 |
|
| 190 | var a = +-5
|
| 191 | var b = -+5
|
| 192 | var c = +(-3)
|
| 193 |
|
| 194 | write -- $a $b $c
|
| 195 |
|
| 196 | ## STDOUT:
|
| 197 | -5
|
| 198 | -5
|
| 199 | -3
|
| 200 | ## END
|
| 201 |
|
| 202 | #### unary minus on strings
|
| 203 | json write (-3)
|
| 204 | json write (-'4')
|
| 205 | json write (-'5.5')
|
| 206 |
|
| 207 | # Not accepted
|
| 208 | json write (-'abc')
|
| 209 |
|
| 210 | ## status: 3
|
| 211 | ## STDOUT:
|
| 212 | -3
|
| 213 | -4
|
| 214 | -5.5
|
| 215 | ## END
|
| 216 |
|
| 217 | #### unary plus on strings
|
| 218 | json write (+3)
|
| 219 | json write (+'4')
|
| 220 | json write (+'5.5')
|
| 221 |
|
| 222 | # Not accepted
|
| 223 | json write (+'abc')
|
| 224 |
|
| 225 | ## status: 3
|
| 226 | ## STDOUT:
|
| 227 | 3
|
| 228 | 4
|
| 229 | 5.5
|
| 230 | ## END
|
| 231 |
|
| 232 | #### unary ~ complement on strings
|
| 233 | json write (~0)
|
| 234 | json write (~'1')
|
| 235 | json write (~' 2 ')
|
| 236 | # Not accepted
|
| 237 | json write (~'3.5')
|
| 238 |
|
| 239 | ## status: 3
|
| 240 | ## STDOUT:
|
| 241 | -1
|
| 242 | -2
|
| 243 | -3
|
| 244 | ## END
|
| 245 |
|
| 246 | #### unary ~ doesn't work on bool
|
| 247 | = ~false
|
| 248 | ## status: 3
|
| 249 | ## STDOUT:
|
| 250 | ## END
|
| 251 |
|
| 252 | #### unary ~ doesn't work on float
|
| 253 | = ~1.0
|
| 254 | ## status: 3
|
| 255 | ## STDOUT:
|
| 256 | ## END
|
| 257 |
|
| 258 | #### unary - applied to bool is not allowed
|
| 259 | = ~false
|
| 260 | ## status: 3
|
| 261 | ## STDOUT:
|
| 262 | ## END
|
| 263 |
|
| 264 | #### Big float constants becomes inf and -inf, tiny become 0.0 and -0.0
|
| 265 |
|
| 266 | $SH -c '
|
| 267 | var x = 0.12345
|
| 268 | pp test_ (x)
|
| 269 | '
|
| 270 | echo float=$?
|
| 271 |
|
| 272 | $SH -c '
|
| 273 | # Becomes infinity
|
| 274 | var x = 0.123456789e1234567
|
| 275 | pp test_ (x)
|
| 276 |
|
| 277 | var x = -0.123456789e1234567
|
| 278 | pp test_ (x)
|
| 279 | '
|
| 280 | echo float=$?
|
| 281 |
|
| 282 | $SH -c '
|
| 283 | # Becomes infinity
|
| 284 | var x = 0.123456789e-1234567
|
| 285 | pp test_ (x)
|
| 286 |
|
| 287 | var x = -0.123456789e-1234567
|
| 288 | pp test_ (x)
|
| 289 | '
|
| 290 | echo float=$?
|
| 291 |
|
| 292 | ## STDOUT:
|
| 293 | (Float) 0.12345
|
| 294 | float=0
|
| 295 | (Float) INFINITY
|
| 296 | (Float) -INFINITY
|
| 297 | float=0
|
| 298 | (Float) 0.0
|
| 299 | (Float) -0.0
|
| 300 | float=0
|
| 301 | ## END
|
| 302 |
|
| 303 | #### Int constants bigger than 64 bits
|
| 304 |
|
| 305 | # Decimal
|
| 306 | $SH -c '
|
| 307 | var x = 1111
|
| 308 | pp test_ (x)
|
| 309 | '
|
| 310 | echo dec=$?
|
| 311 |
|
| 312 | $SH -c '
|
| 313 | var x = 1111_2222_3333_4444_5555_6666
|
| 314 | pp test_ (x)
|
| 315 | '
|
| 316 | echo dec=$?
|
| 317 |
|
| 318 | # Binary
|
| 319 | $SH -c '
|
| 320 | var x = 0b11
|
| 321 | pp test_ (x)
|
| 322 | '
|
| 323 | echo bin=$?
|
| 324 |
|
| 325 | $SH -c '
|
| 326 | var x = 0b1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111
|
| 327 | pp test_ (x)
|
| 328 | '
|
| 329 | echo bin=$?
|
| 330 |
|
| 331 | # Octal
|
| 332 | $SH -c '
|
| 333 | var x = 0o77
|
| 334 | pp test_ (x)
|
| 335 | '
|
| 336 | echo oct=$?
|
| 337 |
|
| 338 | $SH -c '
|
| 339 | var x = 0o1111_2222_3333_4444_5555_6666
|
| 340 | pp test_ (x)
|
| 341 | '
|
| 342 | echo oct=$?
|
| 343 |
|
| 344 | # Hex
|
| 345 | $SH -c '
|
| 346 | var x = 0xff
|
| 347 | pp test_ (x)
|
| 348 | '
|
| 349 | echo hex=$?
|
| 350 |
|
| 351 | $SH -c '
|
| 352 | var x = 0xaaaa_bbbb_cccc_dddd_eeee_ffff
|
| 353 | pp test_ (x)
|
| 354 | '
|
| 355 | echo hex=$?
|
| 356 |
|
| 357 | ## STDOUT:
|
| 358 | (Int) 1111
|
| 359 | dec=0
|
| 360 | dec=2
|
| 361 | (Int) 3
|
| 362 | bin=0
|
| 363 | bin=2
|
| 364 | (Int) 63
|
| 365 | oct=0
|
| 366 | oct=2
|
| 367 | (Int) 255
|
| 368 | hex=0
|
| 369 | hex=2
|
| 370 | ## END
|
| 371 |
|
| 372 | #### Bit shift by negative number is not allowed
|
| 373 |
|
| 374 | shopt -s ysh:upgrade
|
| 375 |
|
| 376 | pp test_ (1 << 1)
|
| 377 | pp test_ (1 << 0)
|
| 378 | try {
|
| 379 | pp test_ (1 << -1)
|
| 380 | }
|
| 381 | echo failed $[_error.code]
|
| 382 | echo
|
| 383 |
|
| 384 | pp test_ (16 >> 2)
|
| 385 | pp test_ (16 >> 1)
|
| 386 | pp test_ (16 >> 0)
|
| 387 | try {
|
| 388 | pp test_ (16 >> -1)
|
| 389 | }
|
| 390 | echo failed $[_error.code]
|
| 391 |
|
| 392 | ## STDOUT:
|
| 393 | (Int) 2
|
| 394 | (Int) 1
|
| 395 | failed 3
|
| 396 |
|
| 397 | (Int) 4
|
| 398 | (Int) 8
|
| 399 | (Int) 16
|
| 400 | failed 3
|
| 401 | ## END
|
| 402 |
|
| 403 | #### 64-bit operations
|
| 404 |
|
| 405 | shopt -s ysh:upgrade
|
| 406 |
|
| 407 | var i = 1 << 32
|
| 408 | var s = str(i)
|
| 409 |
|
| 410 | echo "i = $i, s = $s"
|
| 411 |
|
| 412 | if (s ~== i) {
|
| 413 | echo equal
|
| 414 | }
|
| 415 |
|
| 416 | ## STDOUT:
|
| 417 | i = 4294967296, s = 4294967296
|
| 418 | equal
|
| 419 | ## END
|
| 420 |
|
| 421 | #### 64-bit integer doesn't overflow
|
| 422 |
|
| 423 | # same as spec/arith.test.sh case 38
|
| 424 |
|
| 425 | var a= 1 << 31
|
| 426 | echo $a
|
| 427 |
|
| 428 | var b = a + a
|
| 429 | echo $b
|
| 430 |
|
| 431 | var c = b + a
|
| 432 | echo $c
|
| 433 |
|
| 434 | var x = 1 << 62
|
| 435 | var y = x - 1
|
| 436 | echo "max positive = $[ x + y ]"
|
| 437 |
|
| 438 | #echo "overflow $[ x + x ]"
|
| 439 |
|
| 440 | ## STDOUT:
|
| 441 | 2147483648
|
| 442 | 4294967296
|
| 443 | 6442450944
|
| 444 | max positive = 9223372036854775807
|
| 445 | ## END
|
| 446 |
|
| 447 | #### Integer literals
|
| 448 | var d = 123
|
| 449 | var b = 0b11
|
| 450 | var o = 0o123
|
| 451 | var h = 0xff
|
| 452 | echo $d $b $o $h
|
| 453 | ## STDOUT:
|
| 454 | 123 3 83 255
|
| 455 | ## END
|
| 456 |
|
| 457 | #### Integer literals with underscores
|
| 458 | const dec = 65_536
|
| 459 | const bin = 0b0001_0101
|
| 460 | const oct = 0o001_755
|
| 461 | const hex = 0x0001_000f
|
| 462 |
|
| 463 | echo SHELL
|
| 464 | echo $dec
|
| 465 | echo $bin
|
| 466 | echo $oct
|
| 467 | echo $hex
|
| 468 | const x = 1_1 + 0b1_1 + 0o1_1 + 0x1_1
|
| 469 | echo sum $x
|
| 470 |
|
| 471 | # This works under Python 3.6, but the continuous build has earlier versions
|
| 472 | if false; then
|
| 473 | echo ---
|
| 474 | echo PYTHON
|
| 475 |
|
| 476 | python3 -c '
|
| 477 | print(65_536)
|
| 478 | print(0b0001_0101)
|
| 479 | print(0o001_755)
|
| 480 | print(0x0001_000f)
|
| 481 |
|
| 482 | # Weird syntax
|
| 483 | print("sum", 1_1 + 0b1_1 + 0o1_1 + 0x1_1)
|
| 484 | '
|
| 485 | fi
|
| 486 |
|
| 487 | ## STDOUT:
|
| 488 | SHELL
|
| 489 | 65536
|
| 490 | 21
|
| 491 | 1005
|
| 492 | 65551
|
| 493 | sum 40
|
| 494 | ## END
|
| 495 |
|
| 496 | #### Exponentiation with **
|
| 497 | var x = 2**3
|
| 498 | echo $x
|
| 499 |
|
| 500 | var y = 2.0 ** 3.0 # NOT SUPPORTED
|
| 501 | echo 'should not get here'
|
| 502 |
|
| 503 | ## status: 3
|
| 504 | ## STDOUT:
|
| 505 | 8
|
| 506 | ## END
|
| 507 |
|
| 508 | #### Float Division
|
| 509 | pp test_ (5/2)
|
| 510 | pp test_ (-5/2)
|
| 511 | pp test_ (5/-2)
|
| 512 | pp test_ (-5/-2)
|
| 513 |
|
| 514 | echo ---
|
| 515 |
|
| 516 | var x = 9
|
| 517 | setvar x /= 2
|
| 518 | pp test_ (x)
|
| 519 |
|
| 520 | var x = -9
|
| 521 | setvar x /= 2
|
| 522 | pp test_ (x)
|
| 523 |
|
| 524 | var x = 9
|
| 525 | setvar x /= -2
|
| 526 | pp test_ (x)
|
| 527 |
|
| 528 | var x = -9
|
| 529 | setvar x /= -2
|
| 530 | pp test_ (x)
|
| 531 |
|
| 532 |
|
| 533 | ## STDOUT:
|
| 534 | (Float) 2.5
|
| 535 | (Float) -2.5
|
| 536 | (Float) -2.5
|
| 537 | (Float) 2.5
|
| 538 | ---
|
| 539 | (Float) 4.5
|
| 540 | (Float) -4.5
|
| 541 | (Float) -4.5
|
| 542 | (Float) 4.5
|
| 543 | ## END
|
| 544 |
|
| 545 | #### Integer Division (rounds toward zero)
|
| 546 | pp test_ (5//2)
|
| 547 | pp test_ (-5//2)
|
| 548 | pp test_ (5//-2)
|
| 549 | pp test_ (-5//-2)
|
| 550 |
|
| 551 | echo ---
|
| 552 |
|
| 553 | var x = 9
|
| 554 | setvar x //= 2
|
| 555 | pp test_ (x)
|
| 556 |
|
| 557 | var x = -9
|
| 558 | setvar x //= 2
|
| 559 | pp test_ (x)
|
| 560 |
|
| 561 | var x = 9
|
| 562 | setvar x //= -2
|
| 563 | pp test_ (x)
|
| 564 |
|
| 565 | var x = -9
|
| 566 | setvar x //= -2
|
| 567 | pp test_ (x)
|
| 568 |
|
| 569 | ## STDOUT:
|
| 570 | (Int) 2
|
| 571 | (Int) -2
|
| 572 | (Int) -2
|
| 573 | (Int) 2
|
| 574 | ---
|
| 575 | (Int) 4
|
| 576 | (Int) -4
|
| 577 | (Int) -4
|
| 578 | (Int) 4
|
| 579 | ## END
|
| 580 |
|
| 581 | #### % operator is remainder
|
| 582 | pp test_ ( 5 % 3)
|
| 583 | pp test_ (-5 % 3)
|
| 584 |
|
| 585 | # negative divisor illegal (tested in test/ysh-runtime-errors.sh)
|
| 586 | #pp test_ ( 5 % -3)
|
| 587 | #pp test_ (-5 % -3)
|
| 588 |
|
| 589 | var z = 10
|
| 590 | setvar z %= 3
|
| 591 | pp test_ (z)
|
| 592 |
|
| 593 | var z = -10
|
| 594 | setvar z %= 3
|
| 595 | pp test_ (z)
|
| 596 |
|
| 597 | ## STDOUT:
|
| 598 | (Int) 2
|
| 599 | (Int) -2
|
| 600 | (Int) 1
|
| 601 | (Int) -1
|
| 602 | ## END
|
| 603 |
|
| 604 | #### Bitwise logical
|
| 605 | var a = 0b0101 & 0b0011
|
| 606 | echo $a
|
| 607 | var b = 0b0101 | 0b0011
|
| 608 | echo $b
|
| 609 | var c = 0b0101 ^ 0b0011
|
| 610 | echo $c
|
| 611 | var d = ~b
|
| 612 | echo $d
|
| 613 | ## STDOUT:
|
| 614 | 1
|
| 615 | 7
|
| 616 | 6
|
| 617 | -8
|
| 618 | ## END
|
| 619 |
|
| 620 | #### Shift operators
|
| 621 | var a = 1 << 4
|
| 622 | echo $a
|
| 623 | var b = 16 >> 4
|
| 624 | echo $b
|
| 625 | ## STDOUT:
|
| 626 | 16
|
| 627 | 1
|
| 628 | ## END
|
| 629 |
|
| 630 | #### multiline strings, list, tuple syntax for list, etc.
|
| 631 | var dq = "
|
| 632 | dq
|
| 633 | 2
|
| 634 | "
|
| 635 | echo dq=$[len(dq)]
|
| 636 |
|
| 637 | var sq = '
|
| 638 | sq
|
| 639 | 2
|
| 640 | '
|
| 641 | echo sq=$[len(sq)]
|
| 642 |
|
| 643 | var mylist = [
|
| 644 | 1,
|
| 645 | 2,
|
| 646 | 3,
|
| 647 | ]
|
| 648 | echo mylist=$[len(mylist)]
|
| 649 |
|
| 650 | var mytuple = (1,
|
| 651 | 2, 3)
|
| 652 | echo mytuple=$[len(mytuple)]
|
| 653 |
|
| 654 | ## STDOUT:
|
| 655 | dq=6
|
| 656 | sq=6
|
| 657 | mylist=3
|
| 658 | mytuple=3
|
| 659 | ## END
|
| 660 |
|