| 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 | shopt --set parse_ysh_expr_sub
|
| 50 |
|
| 51 | echo ' i i' $[1 + 2]
|
| 52 | echo 'si i' $['1' + 2]
|
| 53 | echo ' i si' $[1 + '2']
|
| 54 | echo ---
|
| 55 |
|
| 56 | echo ' f f' $[2.5 - 1.5]
|
| 57 | echo 'sf f' $['2.5' - 1.5]
|
| 58 | echo ' f sf' $[2.5 - '1.5']
|
| 59 | echo ---
|
| 60 |
|
| 61 | echo ' i f' $[4 * 1.5]
|
| 62 | echo 'si f' $['4' * 1.5]
|
| 63 | echo ' i sf' $[4 * '1.5']
|
| 64 | echo ---
|
| 65 |
|
| 66 | echo ' f i' $[5.0 / 2]
|
| 67 | echo 'sf i' $['5.0' / 2]
|
| 68 | echo ' f si' $[5.0 / '2']
|
| 69 |
|
| 70 | ## STDOUT:
|
| 71 | i i 3
|
| 72 | si i 3
|
| 73 | i si 3
|
| 74 | ---
|
| 75 | f f 1.0
|
| 76 | sf f 1.0
|
| 77 | f sf 1.0
|
| 78 | ---
|
| 79 | i f 6.0
|
| 80 | si f 6.0
|
| 81 | i sf 6.0
|
| 82 | ---
|
| 83 | f i 2.5
|
| 84 | sf i 2.5
|
| 85 | f si 2.5
|
| 86 | ## END
|
| 87 |
|
| 88 | #### Floating Point Division with /
|
| 89 |
|
| 90 | var i = '1.0' / '0.05'
|
| 91 |
|
| 92 | echo $i
|
| 93 |
|
| 94 | ## STDOUT:
|
| 95 | 20.0
|
| 96 | ## END
|
| 97 |
|
| 98 |
|
| 99 | #### Operations That Convert to Integer: // % **
|
| 100 | shopt -s parse_brace
|
| 101 |
|
| 102 | var m = ' 5 ' // 2
|
| 103 |
|
| 104 | var n = ' 5 ' % 2
|
| 105 |
|
| 106 | var p = ' 5 ' ** 2
|
| 107 |
|
| 108 | write -- $m $n $p
|
| 109 |
|
| 110 | try {
|
| 111 | var z = 'a' // 3
|
| 112 | }
|
| 113 | echo _status $_status
|
| 114 |
|
| 115 | try {
|
| 116 | var z = 'z' % 3
|
| 117 | }
|
| 118 | echo _status $_status
|
| 119 |
|
| 120 | ## STDOUT:
|
| 121 | 2
|
| 122 | 1
|
| 123 | 25
|
| 124 | _status 3
|
| 125 | _status 3
|
| 126 | ## END
|
| 127 |
|
| 128 | #### Division by zero
|
| 129 | shopt -s parse_brace
|
| 130 |
|
| 131 | try {
|
| 132 | = 42 / 0
|
| 133 | }
|
| 134 | echo "status / is $_status"
|
| 135 |
|
| 136 | try {
|
| 137 | = 42 // 0
|
| 138 | }
|
| 139 | echo "status // is $_status"
|
| 140 |
|
| 141 | try {
|
| 142 | = 42 % 0
|
| 143 | }
|
| 144 | echo "status % is $_status"
|
| 145 |
|
| 146 | ## STDOUT:
|
| 147 | status / is 3
|
| 148 | status // is 3
|
| 149 | status % is 3
|
| 150 | ## END
|
| 151 |
|
| 152 | #### Unary Operations
|
| 153 |
|
| 154 | var a = ~1
|
| 155 |
|
| 156 | var b = -1
|
| 157 | var c = -2.3
|
| 158 |
|
| 159 | var d = not true
|
| 160 |
|
| 161 |
|
| 162 | write -- $a $b $c $d
|
| 163 |
|
| 164 | ## STDOUT:
|
| 165 | -2
|
| 166 | -1
|
| 167 | -2.3
|
| 168 | false
|
| 169 | ## END
|
| 170 |
|
| 171 | #### Unary plus on integers and floats
|
| 172 |
|
| 173 | var a = +1
|
| 174 | var b = +42
|
| 175 | var c = +2.5
|
| 176 |
|
| 177 | var d = -10
|
| 178 | var e = +d
|
| 179 |
|
| 180 | write -- $a $b $c $e
|
| 181 |
|
| 182 | ## STDOUT:
|
| 183 | 1
|
| 184 | 42
|
| 185 | 2.5
|
| 186 | -10
|
| 187 | ## END
|
| 188 |
|
| 189 | #### unary plus and minus combined
|
| 190 |
|
| 191 | var a = +-5
|
| 192 | var b = -+5
|
| 193 | var c = +(-3)
|
| 194 |
|
| 195 | write -- $a $b $c
|
| 196 |
|
| 197 | ## STDOUT:
|
| 198 | -5
|
| 199 | -5
|
| 200 | -3
|
| 201 | ## END
|
| 202 |
|
| 203 | #### unary minus on strings
|
| 204 | json write (-3)
|
| 205 | json write (-'4')
|
| 206 | json write (-'5.5')
|
| 207 |
|
| 208 | # Not accepted
|
| 209 | json write (-'abc')
|
| 210 |
|
| 211 | ## status: 3
|
| 212 | ## STDOUT:
|
| 213 | -3
|
| 214 | -4
|
| 215 | -5.5
|
| 216 | ## END
|
| 217 |
|
| 218 | #### unary plus on strings
|
| 219 | json write (+3)
|
| 220 | json write (+'4')
|
| 221 | json write (+'5.5')
|
| 222 |
|
| 223 | # Not accepted
|
| 224 | json write (+'abc')
|
| 225 |
|
| 226 | ## status: 3
|
| 227 | ## STDOUT:
|
| 228 | 3
|
| 229 | 4
|
| 230 | 5.5
|
| 231 | ## END
|
| 232 |
|
| 233 | #### unary ~ complement on strings
|
| 234 | json write (~0)
|
| 235 | json write (~'1')
|
| 236 | json write (~' 2 ')
|
| 237 | # Not accepted
|
| 238 | json write (~'3.5')
|
| 239 |
|
| 240 | ## status: 3
|
| 241 | ## STDOUT:
|
| 242 | -1
|
| 243 | -2
|
| 244 | -3
|
| 245 | ## END
|
| 246 |
|
| 247 | #### unary ~ doesn't work on bool
|
| 248 | = ~false
|
| 249 | ## status: 3
|
| 250 | ## STDOUT:
|
| 251 | ## END
|
| 252 |
|
| 253 | #### unary ~ doesn't work on float
|
| 254 | = ~1.0
|
| 255 | ## status: 3
|
| 256 | ## STDOUT:
|
| 257 | ## END
|
| 258 |
|
| 259 | #### unary - applied to bool is not allowed
|
| 260 | = ~false
|
| 261 | ## status: 3
|
| 262 | ## STDOUT:
|
| 263 | ## END
|
| 264 |
|
| 265 | #### Big float constants becomes inf and -inf, tiny become 0.0 and -0.0
|
| 266 |
|
| 267 | $SH -c '
|
| 268 | var x = 0.12345
|
| 269 | pp test_ (x)
|
| 270 | '
|
| 271 | echo float=$?
|
| 272 |
|
| 273 | $SH -c '
|
| 274 | # Becomes infinity
|
| 275 | var x = 0.123456789e1234567
|
| 276 | pp test_ (x)
|
| 277 |
|
| 278 | var x = -0.123456789e1234567
|
| 279 | pp test_ (x)
|
| 280 | '
|
| 281 | echo float=$?
|
| 282 |
|
| 283 | $SH -c '
|
| 284 | # Becomes infinity
|
| 285 | var x = 0.123456789e-1234567
|
| 286 | pp test_ (x)
|
| 287 |
|
| 288 | var x = -0.123456789e-1234567
|
| 289 | pp test_ (x)
|
| 290 | '
|
| 291 | echo float=$?
|
| 292 |
|
| 293 | ## STDOUT:
|
| 294 | (Float) 0.12345
|
| 295 | float=0
|
| 296 | (Float) INFINITY
|
| 297 | (Float) -INFINITY
|
| 298 | float=0
|
| 299 | (Float) 0.0
|
| 300 | (Float) -0.0
|
| 301 | float=0
|
| 302 | ## END
|
| 303 |
|
| 304 | #### Int constants bigger than 64 bits
|
| 305 |
|
| 306 | # Decimal
|
| 307 | $SH -c '
|
| 308 | var x = 1111
|
| 309 | pp test_ (x)
|
| 310 | '
|
| 311 | echo dec=$?
|
| 312 |
|
| 313 | $SH -c '
|
| 314 | var x = 1111_2222_3333_4444_5555_6666
|
| 315 | pp test_ (x)
|
| 316 | '
|
| 317 | echo dec=$?
|
| 318 |
|
| 319 | # Binary
|
| 320 | $SH -c '
|
| 321 | var x = 0b11
|
| 322 | pp test_ (x)
|
| 323 | '
|
| 324 | echo bin=$?
|
| 325 |
|
| 326 | $SH -c '
|
| 327 | var x = 0b1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111
|
| 328 | pp test_ (x)
|
| 329 | '
|
| 330 | echo bin=$?
|
| 331 |
|
| 332 | # Octal
|
| 333 | $SH -c '
|
| 334 | var x = 0o77
|
| 335 | pp test_ (x)
|
| 336 | '
|
| 337 | echo oct=$?
|
| 338 |
|
| 339 | $SH -c '
|
| 340 | var x = 0o1111_2222_3333_4444_5555_6666
|
| 341 | pp test_ (x)
|
| 342 | '
|
| 343 | echo oct=$?
|
| 344 |
|
| 345 | # Hex
|
| 346 | $SH -c '
|
| 347 | var x = 0xff
|
| 348 | pp test_ (x)
|
| 349 | '
|
| 350 | echo hex=$?
|
| 351 |
|
| 352 | $SH -c '
|
| 353 | var x = 0xaaaa_bbbb_cccc_dddd_eeee_ffff
|
| 354 | pp test_ (x)
|
| 355 | '
|
| 356 | echo hex=$?
|
| 357 |
|
| 358 | ## STDOUT:
|
| 359 | (Int) 1111
|
| 360 | dec=0
|
| 361 | dec=2
|
| 362 | (Int) 3
|
| 363 | bin=0
|
| 364 | bin=2
|
| 365 | (Int) 63
|
| 366 | oct=0
|
| 367 | oct=2
|
| 368 | (Int) 255
|
| 369 | hex=0
|
| 370 | hex=2
|
| 371 | ## END
|
| 372 |
|
| 373 | #### Bit shift by negative number is not allowed
|
| 374 |
|
| 375 | shopt -s ysh:upgrade
|
| 376 |
|
| 377 | pp test_ (1 << 1)
|
| 378 | pp test_ (1 << 0)
|
| 379 | try {
|
| 380 | pp test_ (1 << -1)
|
| 381 | }
|
| 382 | echo failed $[_error.code]
|
| 383 | echo
|
| 384 |
|
| 385 | pp test_ (16 >> 2)
|
| 386 | pp test_ (16 >> 1)
|
| 387 | pp test_ (16 >> 0)
|
| 388 | try {
|
| 389 | pp test_ (16 >> -1)
|
| 390 | }
|
| 391 | echo failed $[_error.code]
|
| 392 |
|
| 393 | ## STDOUT:
|
| 394 | (Int) 2
|
| 395 | (Int) 1
|
| 396 | failed 3
|
| 397 |
|
| 398 | (Int) 4
|
| 399 | (Int) 8
|
| 400 | (Int) 16
|
| 401 | failed 3
|
| 402 | ## END
|
| 403 |
|
| 404 | #### 64-bit operations
|
| 405 |
|
| 406 | shopt -s ysh:upgrade
|
| 407 |
|
| 408 | var i = 1 << 32
|
| 409 | var s = str(i)
|
| 410 |
|
| 411 | echo "i = $i, s = $s"
|
| 412 |
|
| 413 | if (s ~== i) {
|
| 414 | echo equal
|
| 415 | }
|
| 416 |
|
| 417 | ## STDOUT:
|
| 418 | i = 4294967296, s = 4294967296
|
| 419 | equal
|
| 420 | ## END
|
| 421 |
|
| 422 | #### 64-bit integer doesn't overflow
|
| 423 |
|
| 424 | # same as spec/arith.test.sh case 38
|
| 425 |
|
| 426 | var a= 1 << 31
|
| 427 | echo $a
|
| 428 |
|
| 429 | var b = a + a
|
| 430 | echo $b
|
| 431 |
|
| 432 | var c = b + a
|
| 433 | echo $c
|
| 434 |
|
| 435 | var x = 1 << 62
|
| 436 | var y = x - 1
|
| 437 | echo "max positive = $[ x + y ]"
|
| 438 |
|
| 439 | #echo "overflow $[ x + x ]"
|
| 440 |
|
| 441 | ## STDOUT:
|
| 442 | 2147483648
|
| 443 | 4294967296
|
| 444 | 6442450944
|
| 445 | max positive = 9223372036854775807
|
| 446 | ## END
|
| 447 |
|
| 448 | #### Integer literals
|
| 449 | var d = 123
|
| 450 | var b = 0b11
|
| 451 | var o = 0o123
|
| 452 | var h = 0xff
|
| 453 | echo $d $b $o $h
|
| 454 | ## STDOUT:
|
| 455 | 123 3 83 255
|
| 456 | ## END
|
| 457 |
|
| 458 | #### Integer literals with underscores
|
| 459 | const dec = 65_536
|
| 460 | const bin = 0b0001_0101
|
| 461 | const oct = 0o001_755
|
| 462 | const hex = 0x0001_000f
|
| 463 |
|
| 464 | echo SHELL
|
| 465 | echo $dec
|
| 466 | echo $bin
|
| 467 | echo $oct
|
| 468 | echo $hex
|
| 469 | const x = 1_1 + 0b1_1 + 0o1_1 + 0x1_1
|
| 470 | echo sum $x
|
| 471 |
|
| 472 | # This works under Python 3.6, but the continuous build has earlier versions
|
| 473 | if false; then
|
| 474 | echo ---
|
| 475 | echo PYTHON
|
| 476 |
|
| 477 | python3 -c '
|
| 478 | print(65_536)
|
| 479 | print(0b0001_0101)
|
| 480 | print(0o001_755)
|
| 481 | print(0x0001_000f)
|
| 482 |
|
| 483 | # Weird syntax
|
| 484 | print("sum", 1_1 + 0b1_1 + 0o1_1 + 0x1_1)
|
| 485 | '
|
| 486 | fi
|
| 487 |
|
| 488 | ## STDOUT:
|
| 489 | SHELL
|
| 490 | 65536
|
| 491 | 21
|
| 492 | 1005
|
| 493 | 65551
|
| 494 | sum 40
|
| 495 | ## END
|
| 496 |
|
| 497 | #### Exponentiation with **
|
| 498 | var x = 2**3
|
| 499 | echo $x
|
| 500 |
|
| 501 | var y = 2.0 ** 3.0 # NOT SUPPORTED
|
| 502 | echo 'should not get here'
|
| 503 |
|
| 504 | ## status: 3
|
| 505 | ## STDOUT:
|
| 506 | 8
|
| 507 | ## END
|
| 508 |
|
| 509 | #### Float Division
|
| 510 | pp test_ (5/2)
|
| 511 | pp test_ (-5/2)
|
| 512 | pp test_ (5/-2)
|
| 513 | pp test_ (-5/-2)
|
| 514 |
|
| 515 | echo ---
|
| 516 |
|
| 517 | var x = 9
|
| 518 | setvar x /= 2
|
| 519 | pp test_ (x)
|
| 520 |
|
| 521 | var x = -9
|
| 522 | setvar x /= 2
|
| 523 | pp test_ (x)
|
| 524 |
|
| 525 | var x = 9
|
| 526 | setvar x /= -2
|
| 527 | pp test_ (x)
|
| 528 |
|
| 529 | var x = -9
|
| 530 | setvar x /= -2
|
| 531 | pp test_ (x)
|
| 532 |
|
| 533 |
|
| 534 | ## STDOUT:
|
| 535 | (Float) 2.5
|
| 536 | (Float) -2.5
|
| 537 | (Float) -2.5
|
| 538 | (Float) 2.5
|
| 539 | ---
|
| 540 | (Float) 4.5
|
| 541 | (Float) -4.5
|
| 542 | (Float) -4.5
|
| 543 | (Float) 4.5
|
| 544 | ## END
|
| 545 |
|
| 546 | #### Integer Division (rounds toward zero)
|
| 547 | pp test_ (5//2)
|
| 548 | pp test_ (-5//2)
|
| 549 | pp test_ (5//-2)
|
| 550 | pp test_ (-5//-2)
|
| 551 |
|
| 552 | echo ---
|
| 553 |
|
| 554 | var x = 9
|
| 555 | setvar x //= 2
|
| 556 | pp test_ (x)
|
| 557 |
|
| 558 | var x = -9
|
| 559 | setvar x //= 2
|
| 560 | pp test_ (x)
|
| 561 |
|
| 562 | var x = 9
|
| 563 | setvar x //= -2
|
| 564 | pp test_ (x)
|
| 565 |
|
| 566 | var x = -9
|
| 567 | setvar x //= -2
|
| 568 | pp test_ (x)
|
| 569 |
|
| 570 | ## STDOUT:
|
| 571 | (Int) 2
|
| 572 | (Int) -2
|
| 573 | (Int) -2
|
| 574 | (Int) 2
|
| 575 | ---
|
| 576 | (Int) 4
|
| 577 | (Int) -4
|
| 578 | (Int) -4
|
| 579 | (Int) 4
|
| 580 | ## END
|
| 581 |
|
| 582 | #### % operator is remainder
|
| 583 | pp test_ ( 5 % 3)
|
| 584 | pp test_ (-5 % 3)
|
| 585 |
|
| 586 | # negative divisor illegal (tested in test/ysh-runtime-errors.sh)
|
| 587 | #pp test_ ( 5 % -3)
|
| 588 | #pp test_ (-5 % -3)
|
| 589 |
|
| 590 | var z = 10
|
| 591 | setvar z %= 3
|
| 592 | pp test_ (z)
|
| 593 |
|
| 594 | var z = -10
|
| 595 | setvar z %= 3
|
| 596 | pp test_ (z)
|
| 597 |
|
| 598 | ## STDOUT:
|
| 599 | (Int) 2
|
| 600 | (Int) -2
|
| 601 | (Int) 1
|
| 602 | (Int) -1
|
| 603 | ## END
|
| 604 |
|
| 605 | #### Bitwise logical
|
| 606 | var a = 0b0101 & 0b0011
|
| 607 | echo $a
|
| 608 | var b = 0b0101 | 0b0011
|
| 609 | echo $b
|
| 610 | var c = 0b0101 ^ 0b0011
|
| 611 | echo $c
|
| 612 | var d = ~b
|
| 613 | echo $d
|
| 614 | ## STDOUT:
|
| 615 | 1
|
| 616 | 7
|
| 617 | 6
|
| 618 | -8
|
| 619 | ## END
|
| 620 |
|
| 621 | #### Shift operators
|
| 622 | var a = 1 << 4
|
| 623 | echo $a
|
| 624 | var b = 16 >> 4
|
| 625 | echo $b
|
| 626 | ## STDOUT:
|
| 627 | 16
|
| 628 | 1
|
| 629 | ## END
|
| 630 |
|
| 631 | #### multiline strings, list, tuple syntax for list, etc.
|
| 632 | shopt --set parse_ysh_expr_sub
|
| 633 |
|
| 634 | var dq = "
|
| 635 | dq
|
| 636 | 2
|
| 637 | "
|
| 638 | echo dq=$[len(dq)]
|
| 639 |
|
| 640 | var sq = '
|
| 641 | sq
|
| 642 | 2
|
| 643 | '
|
| 644 | echo sq=$[len(sq)]
|
| 645 |
|
| 646 | var mylist = [
|
| 647 | 1,
|
| 648 | 2,
|
| 649 | 3,
|
| 650 | ]
|
| 651 | echo mylist=$[len(mylist)]
|
| 652 |
|
| 653 | var mytuple = (1,
|
| 654 | 2, 3)
|
| 655 | echo mytuple=$[len(mytuple)]
|
| 656 |
|
| 657 | ## STDOUT:
|
| 658 | dq=6
|
| 659 | sq=6
|
| 660 | mylist=3
|
| 661 | mytuple=3
|
| 662 | ## END
|
| 663 |
|