102 lines
2.7 KiB
Odin
102 lines
2.7 KiB
Odin
package quantity
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import "base:intrinsics"
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LITERS_PER_GALLON :: 3.785411784
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//----- Liters ----------------------------------
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Liters :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
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v: V,
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}
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@(private = "file")
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liters_to_milli_liters :: #force_inline proc "contextless" (
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liters: Liters($V),
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) -> Milli_Liters(V) where intrinsics.type_is_numeric(V) {
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return Milli_Liters(V){liters.v * MILLI}
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}
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@(private = "file")
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liters_to_gallons :: #force_inline proc "contextless" (
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liters: Liters($V),
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) -> Gallons(V) where intrinsics.type_is_float(V) {
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return Gallons(V){liters.v / LITERS_PER_GALLON}
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}
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//----- Milliliters ----------------------------------
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Milli_Liters :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
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v: V,
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}
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@(private = "file")
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milli_liters_to_liters :: #force_inline proc "contextless" (
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milli_liters: Milli_Liters($V),
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) -> Liters(V) where intrinsics.type_is_numeric(V) {
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return Liters(V){milli_liters.v / MILLI}
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}
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//----- Gallons ----------------------------------
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Gallons :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
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v: V,
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}
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@(private = "file")
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gallons_to_liters :: #force_inline proc "contextless" (
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gallons: Gallons($V),
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) -> Liters(V) where intrinsics.type_is_float(V) {
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return Liters(V){gallons.v * LITERS_PER_GALLON}
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}
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// ---------------------------------------------------------------------------------------------------------------------
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// ----- Conversion Overloads ------------------------
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// ---------------------------------------------------------------------------------------------------------------------
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to_liters :: proc {
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milli_liters_to_liters,
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gallons_to_liters,
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}
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to_milli_liters :: proc {
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liters_to_milli_liters,
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}
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to_gallons :: proc {
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liters_to_gallons,
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}
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// ---------------------------------------------------------------------------------------------------------------------
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// ----- Tests ------------------------
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// ---------------------------------------------------------------------------------------------------------------------
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import "core:testing"
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@(test)
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test_liters_to_milli_liters :: proc(t: ^testing.T) {
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liters := Liters(int){12}
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milli_liters := to_milli_liters(liters)
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testing.expect_value(t, milli_liters, Milli_Liters(int){12_000})
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}
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@(test)
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test_milli_liters_to_liters :: proc(t: ^testing.T) {
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milli_liters := Milli_Liters(int){12_000}
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liters := to_liters(milli_liters)
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testing.expect_value(t, liters, Liters(int){12})
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}
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@(test)
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test_gallons_to_liters :: proc(t: ^testing.T) {
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gallons := Gallons(f32){1}
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liters := to_liters(gallons)
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testing.expect(t, liters.v > 3.78 && liters.v < 3.79)
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}
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@(test)
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test_liters_to_gallons :: proc(t: ^testing.T) {
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liters := Liters(f32){3.785411784}
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gallons := to_gallons(liters)
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testing.expect(t, gallons.v > 0.99 && gallons.v < 1.01)
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}
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