carlobaldassi

typealias MyTuple (ASCIIString, BitsKind)

type MyType
    some_field::Int
    function MyType(vec::Vector{MyTuple})
        println("INNER")
        new(0)
    end
end

carlobaldassi

# Annotated version

function calc{T<:Float}(X::Matrix{T}, N...)  # change the name of the second argument -> the bug goes away
                                             # (type of second argument doesn't matter)
                                             # we might even use a single argument N::Matrix{T}
                                             # it doesn't matter what's left of the T, it might be
                                             # T<:Float64 or T<:Any or even just T

#function calc(X::Matrix{Float64}, N::Int)   # use this form -> the bug goes away
                                             # except where noted

carlobaldassi

julia> a(i) = a(i::x->1)
(type-error car cons ())
unexpected error: #0 (goto-form/lambda/lambda
 #0=#fn("7000r1|i10Ko102i11awo11;" [] #1=[#0#
					  #2=#fn("8000r0i12ai12wo122;" [] #1# make-label)
					  #3=#fn("8000r1~c0|L241;" [label] #1# mark-label)
					  #4=#fn("7000r0i10F16G02i10MF16=02e0i1031c1<680i10M\x84;c2q\x7f3041;" [caar
  label #fn("7000r1i02|312|;" [])] #1# make&mark-label)
					  #5=#fn("7000r3|F@17702|c0>6>0|C670~|41;^;c1q|M41;" [(null)
  #fn(":000r1|c0=6=0i10e1~3141;|c2=6L0c3qe4e5~\x84i023217502c63141;|c7=6^0c8qc9e1~\x8431c:L3c;c:L2e<~31F16<02e<~31Mc=<43;|c>=6<0e?c@q~N42;|cA=6B0cBqi1330i113042;|cC=6=0cDqi113041;|cE=6?0cFqcG~\x84\x7f3241;|c==6Y0eHi23`326A0i10cIi23L231530]2i10e1~3141;|cJ=6B0cKqi1130i113042;|cL=640^;i10e1~3141;" [call

carlobaldassi

(type-error car cons ())
unexpected error: #0 (caddr ((call dlsym _jl_libglpk ($ f))
	($ (... args))))
#1 (parse-resword/lambda/lambda/lambda/lambda/lambda/lambda
 ((call dlsym _jl_libglpk ($ f))
  ($ (... args))))
#2 (parse-resword/lambda/lambda/lambda
 #fn("6000r0~k02\x7fk12i02k2;" [ops-by-prec range-colon-enabled space-sensitive] [[(=
  := += -= *= /= //= .//= .*= ./= |\\=| |.\\=| ^= .^= %= |\|=| &= $= => <<= >>=
  >>>=) (?) (|\|\||) (&&) (<- -- -->) (> < >= <= == != .> .< .>= .<= .== .!= .=

carlobaldassi

function reallygreedylinecounter(fname::String)
    f = open(fname)
    return reallygreedylinecounter(f)
end
function reallygreedylinecounter(f::IOStream)
    try
        seek(f, 0)
    end 
    ln = 0
    eof = int(typemax(Uint32)) #argh

carlobaldassi

100x100 matrices, averages over 250000 tests:
  A'*A gemm : 0.00022529661750793456 ± 1.3165374929527648e-6
  A'*A syrk : 0.0004116961793899536 ± 2.2544687273938097e-6
  A*A' gemm : 0.00020168535614013673 ± 9.12395962546235e-7
  A*A' syrk : 0.0004128545732498169 ± 2.236023626830784e-6

200x200 matrices, averages over 31250 tests:
  A'*A gemm : 0.0016472916564941407 ± 1.1819936441612635e-5
  A'*A syrk : 0.0019588019256591795 ± 1.173932771520073e-5
  A*A' gemm : 0.0012420702819824219 ± 2.3948308461046164e-6

carlobaldassi

typealias MatOrNothing{T} Union(AbstractMatrix{T}, Vector{None}, Nothing)

my_func{T}(A::MatOrNothing{T}) = println("my_func ok")

M = [1. 2. ; 3. 4.]

my_func(M) # works
my_func([]) # works
my_func(nothing) # fails

carlobaldassi

julia> load("flatten1d.jl")

julia> a = [[randi(3) for k=1:3] for i=1:3, j=1:2]
3x2 Array{Int64,1} Array:
 [3, 1, 2]  [1, 3, 3]
 [1, 1, 3]  [2, 3, 3]
 [3, 1, 3]  [3, 2, 2]

julia> flatten1d(a)
18-element Int64 Array:

carlobaldassi

load("fft_powers.jl")
@assert fft_powers_approx([2,3,5], 37) == 40
@assert nextprod([2,3,5], 37) == 40

function bench_nextprod(ps, x)
    tm = 1000
    t = Array(Float64, tm)
    for i = 1:tm
        t[i] = @elapsed nextprod(ps, x)
    end

carlobaldassi

require("textwrap.jl")

import TextWrap.*
import OptionsMod.*

text = "Julia is a high-level, high-performance dynamic programming language for technical computing, with syntax that is familiar to users of other technical computing environments. It provides a sophisticated compiler, distributed parallel execution, numerical accuracy, and an extensive mathematical function library."

println("DEFAULT OPTIONS")
println("-"^70)
println_wrapped(text)