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discard """
output: '''
TSubRange: 5 from 1 to 10
#FF3722
'''
"""
block tbug499771:
type
TSubRange = range[1 .. 10]
TEnum = enum A, B, C
var sr: TSubRange = 5
echo("TSubRange: " & $sr & " from " & $low(TSubRange) & " to " &
$high(TSubRange))
const cset = {A} + {B}
doAssert A in cset
doAssert B in cset
doAssert C notin cset
include compilehelpers
block tmatrix3:
type
Matrix[M, N, T] = object
aij: array[M, array[N, T]]
Matrix2[T] = Matrix[range[0..1], range[0..1], T]
Matrix3[T] = Matrix[range[0..2], range[0..2], T]
proc mn(x: Matrix): Matrix.T = x.aij[0][0]
proc m2(x: Matrix2): Matrix2.T = x.aij[0][0]
proc m3(x: Matrix3): auto = x.aij[0][0]
var
matn: Matrix[range[0..3], range[0..2], int]
mat2: Matrix2[int]
mat3: Matrix3[float]
doAssert m3(mat3) == 0.0
doAssert mn(mat3) == 0.0
doAssert m2(mat2) == 0
doAssert mn(mat2) == 0
doAssert mn(matn) == 0
reject m3(mat2)
reject m3(matn)
reject m2(mat3)
reject m2(matn)
block tn8vsint16:
type
n32 = range[0..high(int)]
n8 = range[0'i8..high(int8)]
proc `+`(a: n32, b: n32{nkIntLit}): n32 = discard
proc `-`(a: n8, b: n8): n8 = n8(system.`-`(a, b))
var x, y: n8
var z: int16
# ensure this doesn't call our '-' but system.`-` for int16:
doAssert z - n8(9) == -9
import strutils
block tcolors:
type TColor = distinct uint32
proc rgb(r, g, b: range[0..255]): TColor =
result = TColor(r or g shl 8 or b shl 16)
proc `$`(c: TColor): string =
result = "#" & toHex(uint32(c), 6)
echo rgb(34, 55, 255)
block:
type
TColor = distinct uint32
TColorComponent = distinct uint8
proc red(a: TColor): TColorComponent =
result = TColorComponent(uint32(a) and 0xff'u32)
proc green(a: TColor): TColorComponent =
result = TColorComponent(uint32(a) shr 8'u32 and 0xff'u32)
proc blue(a: TColor): TColorComponent =
result = TColorComponent(uint32(a) shr 16'u32 and 0xff'u32)
proc rgb(r, g, b: range[0..255]): TColor =
result = TColor(r or g shl 8 or b shl 8)
proc `+!` (a, b: TColorComponent): TColorComponent =
## saturated arithmetic:
result = TColorComponent(min(int(uint8(a)) + int(uint8(b)), 255))
proc `+` (a, b: TColor): TColor =
## saturated arithmetic for colors makes sense, I think:
return rgb(int(red(a) +! red(b)), int(green(a) +! green(b)), int(blue(a) +! blue(b)))
discard rgb(34, 55, 255)
block:
type
R8 = range[0'u8 .. 10'u8]
R16 = range[0'u16 .. 10'u16]
R32 = range[0'u32 .. 10'u32]
var
x1 = R8(4)
x2 = R16(4)
x3 = R32(4)
doAssert $x1 & $x2 & $x3 == "444"
block:
var x1: range[0'f..1'f] = 1
const x2: range[0'f..1'f] = 1
var x3: range[0'u8..1'u8] = 1
const x4: range[0'u8..1'u8] = 1
var x5: range[0'f32..1'f32] = 1'f64
const x6: range[0'f32..1'f32] = 1'f64
reject:
var x09: range[0'i8..1'i8] = 1.int
reject:
var x10: range[0'i64..1'i64] = 1'u64
const x11: range[0'f..1'f] = 2'f
reject:
const x12: range[0'f..1'f] = 2
# ensure unsigned array indexing is remains lenient:
var a: array[4'u, string]
for i in 0..<a.len:
a[i] = "foo"
# Check range to ordinal conversions
block:
var
a: int16
b: range[0'i32..45'i32] = 3
c: uint16
d: range[0'u32..46'u32] = 3
a = b
c = d
doAssert a == b
doAssert c == d
|
