[julia-users] When to use !

2015-09-28 Thread Tom Breloff
A question regarding the use of `!` came up a few days ago (https://github.com/tbreloff/Plots.jl/issues/30#issuecomment-142995667), and I wanted to quickly poll the users to get opinions. When a module maintains some sort of global state, and a method mutates that global state, is it

Re: [julia-users] When to use Symbol instead of ASCIIString on function arguments?

2015-08-30 Thread Diego Javier Zea
Thanks! I didn't know about enum types!

Re: [julia-users] When to use Symbol instead of ASCIIString on function arguments?

2015-08-30 Thread René Donner
There is no difference. identity is defined as identity(x) = x, and this gets inlined by the compiler. You can also check, for example, the output of @code_native f(1) and compare it with g. Am 30.08.2015 um 16:06 schrieb Diego Javier Zea diego...@gmail.com: Thanks! One more question,

Re: [julia-users] When to use Symbol instead of ASCIIString on function arguments?

2015-08-30 Thread Diego Javier Zea
Thank René!

Re: [julia-users] When to use Symbol instead of ASCIIString on function arguments?

2015-08-30 Thread Diego Javier Zea
Thanks! One more question, what is the difference between this two definitions: julia f(x) = x f (generic function with 1 method) julia g(x) = identity(x) g (generic function with 1 method) julia f(10) 10 julia g(10) 10

[julia-users] When to use Symbol instead of ASCIIString on function arguments?

2015-08-29 Thread Diego Javier Zea
Hi! I'm confused with this... When do I need to use Symbol instead of ASCIIString on function arguments? Which of the following is the best and Julian definition? julia myfunstr{T}(x::T; method::ASCIIString=one) = method==one ? one(T )+x : x myfunstr (generic function with 1 method) julia

Re: [julia-users] When to use Symbol instead of ASCIIString on function arguments?

2015-08-29 Thread Yichao Yu
On Sat, Aug 29, 2015 at 11:17 AM, Diego Javier Zea diego...@gmail.com wrote: Hi! I'm confused with this... When do I need to use Symbol instead of ASCIIString on function arguments? Which of the following is the best and Julian definition? Apart from their indented use (symbol in

Re: [julia-users] When to use Symbol instead of ASCIIString on function arguments?

2015-08-29 Thread Yichao Yu
On Sat, Aug 29, 2015 at 11:48 AM, Yichao Yu yyc1...@gmail.com wrote: On Sat, Aug 29, 2015 at 11:17 AM, Diego Javier Zea diego...@gmail.com wrote: Hi! I'm confused with this... When do I need to use Symbol instead of ASCIIString on function arguments? Which of the following is the best and

Re: [julia-users] When to use Symbol instead of ASCIIString on function arguments?

2015-08-29 Thread Jameson Nash
Since functions are first class objects, my answer would be neither, just use a function: methoda = x - one(typeof(x)) + x methodb = identity On Sat, Aug 29, 2015 at 11:17 AM Diego Javier Zea diego...@gmail.com wrote: Hi! I'm confused with this... When do I need to use Symbol instead of