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24 lines
457 B
Nim
24 lines
457 B
Nim
import typetraits
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template reject(e: expr) =
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static: assert(not compiles(e))
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type
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TMatrix[T; M, N: static[int]] = array[M*N, T]
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proc `*`[T; R, N, C](a: TMatrix[T, R, N], b: TMatrix[T, N, C]): TMatrix[T, R, C] =
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discard
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var m1: TMatrix[int, 6, 4]
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var m2: TMatrix[int, 4, 3]
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var m3: TMatrix[int, 3, 3]
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var m4 = m1*m2
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static: assert m4.M == 6 and m4.N == 3
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reject m1 * m3 # not compatible
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var m5 = m2 * m3
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static: assert high(m5) == 11 # 4*3 - 1
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