196 lines
		
	
	
		
			7.3 KiB
		
	
	
	
		
			Factor
		
	
	
			
		
		
	
	
			196 lines
		
	
	
		
			7.3 KiB
		
	
	
	
		
			Factor
		
	
	
USING: kernel math math.floats.env math.floats.env.private
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math.functions math.libm sequences tools.test locals
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compiler.units kernel.private fry compiler.test math.private
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words system ;
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IN: math.floats.env.tests
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: set-default-fp-env ( -- )
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    { } { } +round-nearest+ +denormal-keep+ set-fp-env ;
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! In case the tests screw up the FP env because of bugs in math.floats.env
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set-default-fp-env
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: test-fp-exception ( exception inputs quot -- quot' )
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    '[ _ [ @ @ ] collect-fp-exceptions nip member? ] ;
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: test-fp-exception-compiled ( exception inputs quot -- quot' )
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    '[ _ @ [ _ collect-fp-exceptions ] compile-call nip member? ] ;
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[ t ] +fp-zero-divide+ [ 1.0 0.0 ] [ /f ] test-fp-exception unit-test
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[ t ] +fp-inexact+ [ 1.0 3.0 ] [ /f ] test-fp-exception unit-test
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[ t ] +fp-overflow+ [ 1.0e250 1.0e100 ] [ * ] test-fp-exception unit-test
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[ t ] +fp-underflow+ [ 1.0e-250 1.0e-100 ] [ * ] test-fp-exception unit-test
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[ t ] +fp-overflow+ [ 2.0 100,000.0 ] [ fpow ] test-fp-exception unit-test
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[ t ] +fp-invalid-operation+ [ 0.0 0.0 ] [ /f ] test-fp-exception unit-test
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[ t ] +fp-invalid-operation+ [ -1.0 ] [ fsqrt ] test-fp-exception unit-test
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[ t ] +fp-zero-divide+ [ 1.0 0.0 ] [ /f ] test-fp-exception-compiled unit-test
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[ t ] +fp-inexact+ [ 1.0 3.0 ] [ /f ] test-fp-exception-compiled unit-test
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[ t ] +fp-overflow+ [ 1.0e250 1.0e100 ] [ * ] test-fp-exception-compiled unit-test
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[ t ] +fp-underflow+ [ 1.0e-250 1.0e-100 ] [ * ] test-fp-exception-compiled unit-test
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[ t ] +fp-overflow+ [ 2.0 100,000.0 ] [ fpow ] test-fp-exception-compiled unit-test
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[ t ] +fp-invalid-operation+ [ 2.0 0/0. 1.0e-9 ] [ ~ ] test-fp-exception-compiled unit-test
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! No underflow on Linux with this test, just inexact. Reported as an Ubuntu bug:
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! https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/429113
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os linux? cpu x86.64? and [
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    [ t ] +fp-underflow+ [ 2.0 -100,000.0 ] [ fpow ] test-fp-exception unit-test
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    [ t ] +fp-underflow+ [ 2.0 -100,000.0 ] [ fpow ] test-fp-exception-compiled unit-test
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] unless
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[ t ] +fp-invalid-operation+ [ 0.0 0.0 ] [ /f ] test-fp-exception-compiled unit-test
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[ t ] +fp-invalid-operation+ [ -1.0 ] [ fsqrt ] test-fp-exception-compiled unit-test
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[
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    HEX: 3fd5,5555,5555,5555
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    HEX: 3fc9,9999,9999,999a
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    HEX: bfc9,9999,9999,999a
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    HEX: bfd5,5555,5555,5555
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] [
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    +round-nearest+ [
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         1.0 3.0 /f double>bits
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         1.0 5.0 /f double>bits
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        -1.0 5.0 /f double>bits
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        -1.0 3.0 /f double>bits
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    ] with-rounding-mode
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] unit-test
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[
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    HEX: 3fd5,5555,5555,5555
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    HEX: 3fc9,9999,9999,9999
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    HEX: bfc9,9999,9999,999a
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    HEX: bfd5,5555,5555,5556
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] [
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    +round-down+ [
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         1.0 3.0 /f double>bits
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         1.0 5.0 /f double>bits
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        -1.0 5.0 /f double>bits
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        -1.0 3.0 /f double>bits
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    ] with-rounding-mode
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] unit-test
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[
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    HEX: 3fd5,5555,5555,5556
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    HEX: 3fc9,9999,9999,999a
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    HEX: bfc9,9999,9999,9999
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    HEX: bfd5,5555,5555,5555
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] [
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    +round-up+ [
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         1.0 3.0 /f double>bits
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         1.0 5.0 /f double>bits
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        -1.0 5.0 /f double>bits
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        -1.0 3.0 /f double>bits
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    ] with-rounding-mode
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] unit-test
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[
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    HEX: 3fd5,5555,5555,5555
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    HEX: 3fc9,9999,9999,9999
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    HEX: bfc9,9999,9999,9999
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    HEX: bfd5,5555,5555,5555
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] [
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    +round-zero+ [
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         1.0 3.0 /f double>bits
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         1.0 5.0 /f double>bits
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        -1.0 5.0 /f double>bits
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        -1.0 3.0 /f double>bits
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    ] with-rounding-mode
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] unit-test
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! ensure rounding mode is restored to +round-nearest+
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[
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    HEX: 3fd5,5555,5555,5555
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    HEX: 3fc9,9999,9999,999a
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    HEX: bfc9,9999,9999,999a
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    HEX: bfd5,5555,5555,5555
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] [
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     1.0 3.0 /f double>bits
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     1.0 5.0 /f double>bits
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    -1.0 5.0 /f double>bits
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    -1.0 3.0 /f double>bits
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] unit-test
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! FP traps cause a kernel panic on OpenBSD 4.5 i386
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os openbsd eq? cpu x86.32 eq? and [
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    : test-traps ( traps inputs quot -- quot' )
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        append '[ _ _ with-fp-traps ] ;
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    : test-traps-compiled ( traps inputs quot -- quot' )
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        swapd '[ @ [ _ _ with-fp-traps ] compile-call ] ;
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    { +fp-zero-divide+ } [ 1.0 0.0 ] [ /f ] test-traps must-fail
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    { +fp-inexact+ } [ 1.0 3.0 ] [ /f ] test-traps must-fail
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    { +fp-invalid-operation+ } [ -1.0 ] [ fsqrt ] test-traps must-fail
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    { +fp-overflow+ } [ 2.0 ] [ 100,000.0 ^ ] test-traps must-fail
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    { +fp-underflow+ +fp-inexact+ } [ 2.0 ] [ -100,000.0 ^ ] test-traps must-fail
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    { +fp-zero-divide+ } [ 1.0 0.0 ] [ /f ] test-traps-compiled must-fail
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    { +fp-inexact+ } [ 1.0 3.0 ] [ /f ] test-traps-compiled must-fail
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    { +fp-invalid-operation+ } [ -1.0 ] [ fsqrt ] test-traps-compiled must-fail
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    { +fp-overflow+ } [ 2.0 ] [ 100,000.0 ^ ] test-traps-compiled must-fail
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    { +fp-underflow+ +fp-inexact+ } [ 2.0 ] [ -100,000.0 ^ ] test-traps-compiled must-fail
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    ! Ensure ordered comparisons raise traps
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    :: test-comparison-quot ( word -- quot )
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        [
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            { float float } declare
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            { +fp-invalid-operation+ } [ word execute ] with-fp-traps
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        ] ;
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    : test-comparison ( inputs word -- quot )
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        test-comparison-quot append ;
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    : test-comparison-compiled ( inputs word -- quot )
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        test-comparison-quot '[ @ _ compile-call ] ;
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    \ float< "intrinsic" word-prop [
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        [ 0/0. -15.0 ] \ < test-comparison must-fail
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        [ 0/0. -15.0 ] \ < test-comparison-compiled must-fail
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        [ -15.0 0/0. ] \ < test-comparison must-fail
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        [ -15.0 0/0. ] \ < test-comparison-compiled must-fail
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        [ 0/0. -15.0 ] \ <= test-comparison must-fail
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        [ 0/0. -15.0 ] \ <= test-comparison-compiled must-fail
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        [ -15.0 0/0. ] \ <= test-comparison must-fail
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        [ -15.0 0/0. ] \ <= test-comparison-compiled must-fail
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        [ 0/0. -15.0 ] \ > test-comparison must-fail
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        [ 0/0. -15.0 ] \ > test-comparison-compiled must-fail
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        [ -15.0 0/0. ] \ > test-comparison must-fail
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        [ -15.0 0/0. ] \ > test-comparison-compiled must-fail
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        [ 0/0. -15.0 ] \ >= test-comparison must-fail
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        [ 0/0. -15.0 ] \ >= test-comparison-compiled must-fail
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        [ -15.0 0/0. ] \ >= test-comparison must-fail
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        [ -15.0 0/0. ] \ >= test-comparison-compiled must-fail
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        [ f ] [ 0/0. -15.0 ] \ u< test-comparison unit-test
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        [ f ] [ 0/0. -15.0 ] \ u< test-comparison-compiled unit-test
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        [ f ] [ -15.0 0/0. ] \ u< test-comparison unit-test
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        [ f ] [ -15.0 0/0. ] \ u< test-comparison-compiled unit-test
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        [ f ] [ 0/0. -15.0 ] \ u<= test-comparison unit-test
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        [ f ] [ 0/0. -15.0 ] \ u<= test-comparison-compiled unit-test
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        [ f ] [ -15.0 0/0. ] \ u<= test-comparison unit-test
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        [ f ] [ -15.0 0/0. ] \ u<= test-comparison-compiled unit-test
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        [ f ] [ 0/0. -15.0 ] \ u> test-comparison unit-test
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        [ f ] [ 0/0. -15.0 ] \ u> test-comparison-compiled unit-test
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        [ f ] [ -15.0 0/0. ] \ u> test-comparison unit-test
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        [ f ] [ -15.0 0/0. ] \ u> test-comparison-compiled unit-test
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        [ f ] [ 0/0. -15.0 ] \ u>= test-comparison unit-test
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        [ f ] [ 0/0. -15.0 ] \ u>= test-comparison-compiled unit-test
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        [ f ] [ -15.0 0/0. ] \ u>= test-comparison unit-test
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        [ f ] [ -15.0 0/0. ] \ u>= test-comparison-compiled unit-test
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    ] when
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] unless
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! Ensure traps get cleared
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[ 1/0. ] [ 1.0 0.0 /f ] unit-test
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! Ensure state is back to normal
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[ +round-nearest+ ] [ rounding-mode ] unit-test
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[ +denormal-keep+ ] [ denormal-mode ] unit-test
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[ { } ] [ fp-traps ] unit-test
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! In case the tests screw up the FP env because of bugs in math.floats.env
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set-default-fp-env
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