2020-03-19 07:24:49 +01:00
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fn test_float_decl() {
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2021-03-24 19:39:59 +01:00
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// z := 1f
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// assert z > 0
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x1 := 1e10
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x2 := -2e16
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x3 := 1e-15
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x4 := -9e-4
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assert typeof(x1).name == 'f64'
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assert typeof(x2).name == 'f64'
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assert typeof(x3).name == 'f64'
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assert typeof(x4).name == 'f64'
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x5 := 4e108
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x6 := -7e99
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x7 := 3e-205
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x8 := -6e-147
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assert typeof(x5).name == 'f64'
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assert typeof(x6).name == 'f64'
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assert typeof(x7).name == 'f64'
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assert typeof(x8).name == 'f64'
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x9 := 312874834.77
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x10 := -22399994.06
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x11 := 0.0000000019
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x12 := -0.00000000008
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assert typeof(x9).name == 'f64'
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assert typeof(x10).name == 'f64'
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assert typeof(x11).name == 'f64'
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assert typeof(x12).name == 'f64'
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x13 := 34234234809890890898903213154353453453253253243432413232228908902183918392183902432432438980380123021983901392183921389083913890389089031.0
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x14 := -39999999999999999999222212128182813294989082302832183928343325325233253242312331324392839238239829389038097438248932789371837218372837293.8
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x15 := 0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002
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x16 := -0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004
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assert typeof(x13).name == 'f64'
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assert typeof(x14).name == 'f64'
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assert typeof(x15).name == 'f64'
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assert typeof(x16).name == 'f64'
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2020-03-19 07:24:49 +01:00
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}
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2020-06-04 19:47:41 +02:00
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fn test_f32_equal_operator() {
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b := f32(1.0)
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mut a := f32(1.0)
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a += 0.0000019073486328125
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assert a != b
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a -= 0.0000019073486328125
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assert a == b
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assert -1 == 1 * -1
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assert -1.0 == 1.0 * -1.0
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a = 1
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a += 0.0000019073486328125
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a -= 0.0000019073486328125
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assert a == f32(1.0)
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a += 0.000001
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assert !(a < f32(1))
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assert !(a <= f32(1))
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assert a > f32(1)
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assert a >= 1
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assert a != 1
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f := 1.2
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ab := int(f)
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assert ab == 1
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e := f32(-1.602176634e-19)
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m := f32(9.1093837015e-31)
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assert e < m
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assert e <= m
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assert e != m
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assert !(e == m)
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assert m >= e
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assert m > e
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}
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fn test_f64_equal_operator() {
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b := 1.0
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mut a := 1.0
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a += 0.0000019073486328125
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assert a != b
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a -= 0.0000019073486328125
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assert a == b
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e := -1.602176634e-19
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m := 9.1093837015e-31
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assert e < m
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assert e <= m
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assert e != m
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assert !(e == m)
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assert m >= e
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assert m > e
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}
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fn test_f64_eq_epsilon() {
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a := 1.662248544459347e308
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b := 1.662248544459348e308
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x := 1.662248544459352e308
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assert a != b
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assert a.eq_epsilon(b)
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assert b.eq_epsilon(a)
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assert (-a).eq_epsilon(-b)
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assert (-b).eq_epsilon(-a)
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assert !a.eq_epsilon(x)
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assert !x.eq_epsilon(a)
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assert !a.eq_epsilon(-b)
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assert !(-a).eq_epsilon(b)
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c := 1.5367748374385438503
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d := -1.5367748374385447257
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z := 1.5367748378943546
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assert c != -d
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assert c.eq_epsilon(-d)
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assert d.eq_epsilon(-c)
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assert !c.eq_epsilon(z)
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assert !z.eq_epsilon(c)
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e := 2.531434251587394233e-308
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f := 2.531434251587395675e-308
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y := 2.531434251587398934e-308
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assert e != f
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assert e.eq_epsilon(f)
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assert (-f).eq_epsilon(-e)
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assert !e.eq_epsilon(y)
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assert !(-y).eq_epsilon(-e)
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}
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fn test_f32_eq_epsilon() {
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a := f32(3.244331e38)
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b := f32(3.244332e38)
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x := f32(3.244338e38)
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assert a != b
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assert a.eq_epsilon(b)
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assert b.eq_epsilon(a)
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assert (-a).eq_epsilon(-b)
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assert (-b).eq_epsilon(-a)
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assert !a.eq_epsilon(x)
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assert !(-x).eq_epsilon(-a)
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assert !a.eq_epsilon(-b)
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assert !(-a).eq_epsilon(b)
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c := f32(0.9546742)
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d := f32(-0.9546745)
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z := f32(0.9546754)
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assert c != -d
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assert c.eq_epsilon(-d)
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assert d.eq_epsilon(-c)
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assert !c.eq_epsilon(z)
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assert !z.eq_epsilon(c)
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e := f32(-1.5004390e-38)
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f := f32(-1.5004395e-38)
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y := f32(-1.5004409e-38)
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assert e != f
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assert e.eq_epsilon(f)
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assert (-f).eq_epsilon(-e)
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assert !e.eq_epsilon(y)
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assert !(-y).eq_epsilon(-e)
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}
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2022-02-16 09:33:29 +01:00
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fn test_float_point_formatting_rounding() {
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float_1 := 462.18
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float_2 := 45.02227
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float_3 := 238.5
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float_4 := 239.5
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assert '${float_1:0.0f}' == '462'
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assert '${float_2:0.0f}' == '45'
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assert '${float_3:0.0f}' == '239'
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assert '${float_4:0.0f}' == '240'
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//
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//
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assert '${239.5555551:0.0f}' == '240'
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assert '${239.5555551:0.1f}' == '239.6'
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assert '${239.5555551:0.2f}' == '239.56'
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assert '${239.5555551:0.3f}' == '239.556'
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assert '${239.5555551:0.4f}' == '239.5556'
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assert '${239.5555551:0.5f}' == '239.55556'
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assert '${239.5555551:0.6f}' == '239.555555'
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assert '${239.5555551:0.7f}' == '239.5555551'
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assert '${239.5555551:0.8f}' == '239.55555510'
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assert '${239.5555551:0.9f}' == '239.555555100'
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assert '${239.5555551:0.10f}' == '239.5555551000'
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assert '${239.5555551:0.11f}' == '239.55555510000'
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//
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assert '${239.5:0.0f}' == '240'
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assert '${239.55:0.1f}' == '239.6'
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assert '${239.555:0.2f}' == '239.56'
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assert '${239.5555:0.3f}' == '239.555' // NB: 5 ?
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assert '${239.55555:0.4f}' == '239.5556'
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assert '${239.555555:0.5f}' == '239.55555' // NB: 5 ?
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assert '${239.5555555:0.6f}' == '239.555556' // after this, it is all ending in 6
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assert '${239.55555555:0.7f}' == '239.5555556'
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assert '${239.555555555:0.8f}' == '239.55555556'
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assert '${239.5555555555:0.9f}' == '239.555555556'
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assert '${239.55555555555:0.10f}' == '239.5555555556'
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//
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assert '${239.5550:0.3f}' == '239.555'
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assert '${239.5551:0.3f}' == '239.555'
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assert '${239.5552:0.3f}' == '239.555'
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assert '${239.5553:0.3f}' == '239.555'
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assert '${239.5554:0.3f}' == '239.555'
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assert '${239.5555:0.3f}' == '239.555'
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assert '${239.5556:0.3f}' == '239.556' // rounding at last 6 ?
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assert '${239.5557:0.3f}' == '239.556'
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assert '${239.5558:0.3f}' == '239.556'
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assert '${239.5559:0.3f}' == '239.556'
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//
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assert '${239.5555551:0.6f}' == '239.555555'
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assert '${239.5555552:0.6f}' == '239.555555'
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assert '${239.5555553:0.6f}' == '239.555555'
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assert '${239.5555554:0.6f}' == '239.555555'
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assert '${239.5555555:0.6f}' == '239.555556'
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assert '${239.5555556:0.6f}' == '239.555556'
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assert '${239.5555557:0.6f}' == '239.555556'
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assert '${239.5555558:0.6f}' == '239.555556'
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assert '${239.5555559:0.6f}' == '239.555556'
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//
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assert '${239.55555555555:0.10f}' == '239.5555555556'
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assert '${239.55555555555:0.9f}' == '239.555555556'
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assert '${239.55555555555:0.8f}' == '239.55555556'
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assert '${239.55555555555:0.7f}' == '239.5555556'
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assert '${239.55555555555:0.6f}' == '239.555556'
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assert '${239.55555555555:0.5f}' == '239.55556'
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assert '${239.55555555555:0.4f}' == '239.5556'
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assert '${239.55555555555:0.3f}' == '239.556'
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assert '${239.55555555555:0.2f}' == '239.56'
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assert '${239.55555555555:0.1f}' == '239.6'
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assert '${239.55555555555:0.0f}' == '240'
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//
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assert '${-239.55555555555:0.10f}' == '-239.5555555556'
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assert '${-239.55555555555:0.9f}' == '-239.555555556'
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assert '${-239.55555555555:0.8f}' == '-239.55555556'
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assert '${-239.55555555555:0.7f}' == '-239.5555556'
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assert '${-239.55555555555:0.6f}' == '-239.555556'
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assert '${-239.55555555555:0.5f}' == '-239.55556'
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assert '${-239.55555555555:0.4f}' == '-239.5556'
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assert '${-239.55555555555:0.3f}' == '-239.556'
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assert '${-239.55555555555:0.2f}' == '-239.56'
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assert '${-239.55555555555:0.1f}' == '-239.6'
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assert '${-239.55555555555:0.0f}' == '-240'
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}
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