erifan01 6d5ebc7022 math: add a testcase for Mod and Remainder respectively ...

One might try to implement the Mod or Remainder function with the expression
x - TRUNC(x/y + 0.5)*y, but in fact this method is wrong, because the rounding
of (x/y + 0.5) to initialize the argument of TRUNC may lose too much precision.
However, the current test cases can not detect this error. This CL adds two
test cases to prevent people from continuing to do such attempts.

Change-Id: I6690f5cffb21bf8ae06a314b7a45cafff8bcee13
Reviewed-on: https://go-review.googlesource.com/84275
Reviewed-by: Robert Griesemer <gri@golang.org>

2018-04-17 03:17:22 +00:00

..

big

math/big: clean up z.div(z, x, y) calls

2018-04-05 22:02:33 +00:00

bits

math/bits: add examples for right rotation

2017-11-03 20:12:07 +00:00

cmplx

math/cmplx: use signed zero to correct branch cuts

2017-11-27 07:44:00 +00:00

rand

math/rand: refactor rng.go

2018-04-16 22:22:14 +00:00

abs.go

cmd/compile,math: improve code generation for math.Abs

2017-08-25 19:15:01 +00:00

acos_s390x.s

math: use SIMD to accelerate additional scalar math functions on s390x

2017-05-08 19:52:30 +00:00

acosh_s390x.s

cmd/asm, math: add s390x floating point test instructions

2018-04-03 16:08:04 +00:00

acosh.go

math: use SIMD to accelerate additional scalar math functions on s390x

2017-05-08 19:52:30 +00:00

all_test.go

math: add a testcase for Mod and Remainder respectively

2018-04-17 03:17:22 +00:00

arith_s390x_test.go

math: use SIMD to accelerate additional scalar math functions on s390x

2017-05-08 19:52:30 +00:00

arith_s390x.go

math: use SIMD to accelerate additional scalar math functions on s390x

2017-05-08 19:52:30 +00:00

asin_386.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

asin_amd64.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

asin_amd64p32.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

asin_arm.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

asin_s390x.s

math: use SIMD to accelerate additional scalar math functions on s390x

2017-05-08 19:52:30 +00:00

asin.go

…

asinh_s390x.s

cmd/asm, math: add s390x floating point test instructions

2018-04-03 16:08:04 +00:00

asinh_stub.s

math: use SIMD to accelerate additional scalar math functions on s390x

2017-05-08 19:52:30 +00:00

asinh.go

math: use SIMD to accelerate additional scalar math functions on s390x

2017-05-08 19:52:30 +00:00

atan2_386.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

atan2_amd64.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

atan2_amd64p32.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

atan2_arm.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

atan2_s390x.s

cmd/asm, math: add s390x floating point test instructions

2018-04-03 16:08:04 +00:00

atan2.go

…

atan_386.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

atan_amd64.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

atan_amd64p32.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

atan_arm.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

atan_s390x.s

math: use SIMD to accelerate additional scalar math functions on s390x

2017-05-08 19:52:30 +00:00

atan.go

…

atanh_s390x.s

math: use SIMD to accelerate additional scalar math functions on s390x

2017-05-08 19:52:30 +00:00

atanh.go

math: use SIMD to accelerate additional scalar math functions on s390x

2017-05-08 19:52:30 +00:00

bits.go

math: add RoundToEven function

2017-10-24 22:33:09 +00:00

cbrt_s390x.s

cmd/asm, math: add s390x floating point test instructions

2018-04-03 16:08:04 +00:00

cbrt_stub.s

math: use SIMD to accelerate additional scalar math functions on s390x

2017-05-08 19:52:30 +00:00

cbrt.go

math: use SIMD to accelerate additional scalar math functions on s390x

2017-05-08 19:52:30 +00:00

const.go

math: change oeis.org urls to https

2017-08-08 08:56:40 +00:00

copysign.go

…

cosh_s390x.s

cmd/asm, math: add s390x floating point test instructions

2018-04-03 16:08:04 +00:00

dim_386.s

math: remove asm version of Dim

2017-11-30 21:00:33 +00:00

dim_amd64.s

math: remove asm version of Dim

2017-11-30 21:00:33 +00:00

dim_amd64p32.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

dim_arm64.s

math: remove asm version of Dim

2017-11-30 21:00:33 +00:00

dim_arm.s

math: remove asm version of Dim

2017-11-30 21:00:33 +00:00

dim_s390x.s

math: optimize dim and remove s390x assembly implementation

2017-10-30 19:05:51 +00:00

dim.go

math: remove asm version of Dim

2017-11-30 21:00:33 +00:00

erf_s390x.s

math: use SIMD to accelerate additional scalar math functions on s390x

2017-05-08 19:52:30 +00:00

erf_stub.s

math: use SIMD to accelerate additional scalar math functions on s390x

2017-05-08 19:52:30 +00:00

erf.go

math: use SIMD to accelerate additional scalar math functions on s390x

2017-05-08 19:52:30 +00:00

erfc_s390x.s

cmd/asm, math: add s390x floating point test instructions

2018-04-03 16:08:04 +00:00

erfinv.go

math: implement the erfcinv function

2017-08-22 13:13:20 +00:00

example_test.go

math: add examples for trig functions

2017-08-25 20:26:19 +00:00

exp2_386.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

exp2_amd64.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

exp2_amd64p32.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

exp2_arm.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

exp_386.s

math: use portable Exp instead of 387 instructions on 386

2016-10-05 03:53:11 +00:00

exp_amd64.s

math: handle denormals in AMD64 Exp

2018-03-29 07:03:09 +00:00

exp_amd64p32.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

exp_arm64.s

math: optimize Exp and Exp2 on arm64

2018-03-27 19:55:02 +00:00

exp_arm.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

exp_asm.go

math: implement fast path for Exp

2017-09-20 21:43:00 +00:00

exp_s390x.s

cmd/asm, math: add s390x floating point test instructions

2018-04-03 16:08:04 +00:00

exp.go

math: fix inaccurate result of Exp(1)

2017-08-17 09:01:27 +00:00

expm1_386.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

expm1_amd64.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

expm1_amd64p32.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

expm1_arm.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

expm1_s390x.s

cmd/asm, math: add s390x floating point test instructions

2018-04-03 16:08:04 +00:00

expm1.go

all: unindent some big chunks of code

2017-08-18 06:59:48 +00:00

export_s390x_test.go

math: use SIMD to accelerate additional scalar math functions on s390x

2017-05-08 19:52:30 +00:00

export_test.go

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

floor_386.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

floor_amd64.s

cmd/compile: intrinsify math.{Trunc/Ceil/Floor} on amd64

2017-10-31 19:30:54 +00:00

floor_amd64p32.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

floor_arm64.s

math: add some assembly implementations on ARM64

2016-09-27 23:52:12 +00:00

floor_arm.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

floor_ppc64x.s

math, cmd/internal/obj/ppc64: improve floor, ceil, trunc with asm

2016-09-23 13:03:08 +00:00

floor_s390x.s

math: optimize Ceil, Floor and Trunc on s390x

2016-08-26 17:27:13 +00:00

floor.go

math: add RoundToEven function

2017-10-24 22:33:09 +00:00

frexp_386.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

frexp_amd64.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

frexp_amd64p32.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

frexp_arm.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

frexp.go

…

gamma.go

math: speed up Gamma(+Inf)

2016-10-18 22:12:03 +00:00

hypot_386.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

hypot_amd64.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

hypot_amd64p32.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

hypot_arm.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

hypot.go

math: use Abs rather than if x < 0 { x = -x }

2018-02-13 20:12:23 +00:00

j0.go

math: use Abs rather than if x < 0 { x = -x }

2018-02-13 20:12:23 +00:00

j1.go

math: speed up bessel functions on AMD64

2016-08-31 14:45:29 +00:00

jn.go

math: fix typos in Bessel function docs

2017-02-16 22:41:34 +00:00

ldexp_386.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

ldexp_amd64.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

ldexp_amd64p32.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

ldexp_arm.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

ldexp.go

math: fix Ldexp when result is below ldexp(2, -1075)

2018-03-29 23:14:13 +00:00

lgamma.go

go/printer, gofmt: tuned table alignment for better results

2018-04-04 13:39:34 -07:00

log1p_386.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

log1p_amd64.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

log1p_amd64p32.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

log1p_arm.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

log1p_s390x.s

math: use SIMD to accelerate additional scalar math functions on s390x

2017-05-08 19:52:30 +00:00

log1p.go

math,math/cmplx: fix linter issues

2016-10-24 23:25:46 +00:00

log10_386.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

log10_amd64.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

log10_amd64p32.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

log10_arm.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

log10_s390x.s

cmd/asm, math: add s390x floating point test instructions

2018-04-03 16:08:04 +00:00

log10.go

math: fix Log2 test failures on ppc64 (and s390)

2015-07-15 05:35:22 +00:00

log_386.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

log_amd64.s

math: speed up Log on amd64

2017-03-29 20:36:29 +00:00

log_amd64p32.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

log_arm.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

log_s390x.s

cmd/asm, math: add s390x floating point test instructions

2018-04-03 16:08:04 +00:00

log.go

all: single space after period.

2016-03-02 00:13:47 +00:00

logb.go

…

mod_386.s

…

mod_amd64.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

mod_amd64p32.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

mod_arm.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

mod.go

…

modf_386.s

all: fix assembly vet issues

2016-08-25 18:52:31 +00:00

modf_amd64.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

modf_amd64p32.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

modf_arm64.s

all: minor vet fixes

2016-10-24 17:27:37 +00:00

modf_arm.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

modf_ppc64x.s

math: implement asm modf for ppc64x

2017-11-02 13:24:32 +00:00

modf.go

all: single space after period.

2016-03-02 00:13:47 +00:00

nextafter.go

math: change Nextafter64 to Nextafter in the description of Nextafter

2015-02-17 14:29:18 +00:00

pow10.go

math: speed up and improve accuracy of Pow10

2017-02-22 19:17:04 +00:00

pow_s390x.s

cmd/asm, math: add s390x floating point test instructions

2018-04-03 16:08:04 +00:00

pow_stub.s

math: use SIMD to accelerate additional scalar math functions on s390x

2017-05-08 19:52:30 +00:00

pow.go

math: correct result for Pow(x, ±.5)

2018-01-02 18:10:43 +00:00

remainder_386.s

…

remainder_amd64.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

remainder_amd64p32.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

remainder_arm.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

remainder.go

all: single space after period.

2016-03-02 00:13:47 +00:00

signbit.go

…

sin_386.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

sin_amd64.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

sin_amd64p32.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

sin_arm.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

sin_s390x.s

cmd/asm, math: add s390x floating point test instructions

2018-04-03 16:08:04 +00:00

sin.go

math: use Abs rather than if x < 0 { x = -x }

2018-02-13 20:12:23 +00:00

sincos_386.go

math: remove asm version of sincos everywhere, except 386

2017-04-24 15:09:18 +00:00

sincos_386.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

sincos.go

math: remove asm version of sincos everywhere, except 386

2017-04-24 15:09:18 +00:00

sinh_s390x.s

cmd/asm, math: add s390x floating point test instructions

2018-04-03 16:08:04 +00:00

sinh_stub.s

math: use SIMD to accelerate some scalar math functions on s390x

2016-11-11 20:20:23 +00:00

sinh.go

math: optimize sinh and cosh

2018-02-27 04:34:37 +00:00

sqrt_386.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

sqrt_amd64.s

math: make sqrt smaller on AMD64

2016-09-29 15:56:52 +00:00

sqrt_amd64p32.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

sqrt_arm64.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

sqrt_arm.s

all: use new softfloat on GOARM=5

2018-04-13 16:39:39 +00:00

sqrt_mipsx.s

runtime/cgo, math: don't use FP instructions for soft-float mips{,le}

2017-11-30 17:12:32 +00:00

sqrt_ppc64x.s

all: make copyright headers consistent with one space after period

2016-05-02 13:43:18 +00:00

sqrt_s390x.s

math: add functions and stubs for s390x

2016-04-06 23:35:56 +00:00

sqrt.go

math: delete unused function sqrtC

2016-03-03 02:29:09 +00:00

stubs_arm64.s

math: optimize Exp and Exp2 on arm64

2018-03-27 19:55:02 +00:00

stubs_mips64x.s

math: remove asm version of Dim

2017-11-30 21:00:33 +00:00

stubs_mipsx.s

math: remove asm version of Dim

2017-11-30 21:00:33 +00:00

stubs_ppc64x.s

math: remove asm version of Dim

2017-11-30 21:00:33 +00:00

stubs_s390x.s

math: remove asm version of Dim

2017-11-30 21:00:33 +00:00

tan_386.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

tan_amd64.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

tan_amd64p32.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

tan_arm.s

all: make copyright headers consistent with one space after period

2016-03-01 23:34:33 +00:00

tan_s390x.s

cmd/asm, math: add s390x floating point test instructions

2018-04-03 16:08:04 +00:00

tan.go

math,math/cmplx: fix linter issues

2016-10-24 23:25:46 +00:00

tanh_s390x.s

cmd/asm, math: add s390x floating point test instructions

2018-04-03 16:08:04 +00:00

tanh.go

math: use SIMD to accelerate some scalar math functions on s390x

2016-11-11 20:20:23 +00:00

unsafe.go

…