11 lines
389 B
Julia
11 lines
389 B
Julia
using Printf
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isnumber(s::AbstractString) = tryparse(Float64, s) isa Number
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tests = ["1", "-121", "one", "pi", "1 + 1", "NaN", "1234567890123456789", "1234567890123456789123456789",
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"1234567890123456789123456789.0", "1.3", "1.4e10", "Inf", "1//2", "1.0 + 1.0im"]
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for t in tests
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fl = isnumber(t) ? "is" : "is not"
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@printf("%35s %s a direct numeric literal.\n", t, fl)
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end
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