taeradan/recipe-cost
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operator to use an ingredient

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This commit is contained in:
Yves Dubromelle
2016-05-21 02:22:35 +02:00
parent 04c07e87c1
commit c2bf6e9455
1 changed files with 7 additions and 4 deletions
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11
cout-recette.hs
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@@ -24,6 +24,9 @@ unitCost (Recipe _ _ qtt _) totalCost = totalCost / qtt
useCost :: Recipe -> Double -> Double
useCost (Recipe _ _ _ uses) totalCost = totalCost / uses
(→) :: Ingredient -> Double -> UsedIngredient
(→) ingredient qtt = UsedIngredient ingredient qtt
eau = Ingredient "Eau" 0.003
savonMarseille = Ingredient "Savon de Marseille" 3.36
bicarbonate = Ingredient "Bicarbonate de soude" 3.81
@@ -31,10 +34,10 @@ vinaigreBlanc = Ingredient "Vinaigre blanc" 0.36
lessive :: Recipe
lessive = Recipe "Lessive"
[ UsedIngredient eau 2.5
, UsedIngredient savonMarseille 0.1
, UsedIngredient bicarbonate 0.016
, UsedIngredient vinaigreBlanc 0.03
[ eau → 2.5
, savonMarseille → 0.1
, bicarbonate → 0.016
, vinaigreBlanc → 0.03
]
2.5
30