Go - Return dynamically pointer to type
- by nevalu
Could dynamically be got a pointer to a type?
type foo struct {
A uint8
B string
}
func Testing() (*foo) {...}
Using an interface?
func Testing() (*interface{}) {...}
Search Results
Search found 5189 results on 208 pages for 'foo wei tau'.
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bash "map" equivalent: run command on each file
- by Claudiu
I often have a command that processes one file, and I want to run it on every file in a directory. Is there any built-in way to do this? For example, say I have a program data which outputs an important number about a file: ./data foo 137 ./data bar 42 I want to run it on every file in the directory in some manner like this: map data `ls *` ls * | map data to yield output like this: foo: 137 bar: 42Read the article
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Why doesn't Java allow for the creaton of generic arrays?
- by byte
There are plenty of questions on stackoverflow from people who have attempted to create an array of generics like so: ArrayList<Foo>[] poo = new ArrayList<Foo>[5]; And the answer of course is that the Java specification doesn't allow you to declare an array of generics. My question however is why ? What is the technical reason underlying this restriction in the java language or java vm? It's a technical curiosity I've always wondered about.Read the article
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How does Dropbox use Python on Windows and OS X?
- by robotshapes
In Windows the Dropbox client uses python25.dll and the MS C runtime libraries (msvcp71.dll, etc). On OS X the Python code is compiled bytecode (pyc). My guess is they are using a common library they have written then just have to use different hooks for the different platforms. What method of development is this? It clearly isn't IronPython or PyObjC. This paradigm is so appealing to me, but my CS foo and Google foo are failing me.Read the article
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jQuery selector - what is faster?
- by christianhaller
Hi, $('#content td#foo').show(); $('td#foo').show(); The td is somewhere deep in the content div. What is faster?Read the article
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Passing variables in python when using from a import *
- by Null
How can I make this print "baz" when I run b.py? a.py def foo(): global bar print bar b.py from a import * bar = "baz" foo()Read the article
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In Javascript, if there is an object with a lot of properties that can functions, how do you convert
- by Jian Lin
In Javascript, if an object has lots of properties that are functions: var obj = { foo: function() { ... }, bar: function() { ... }, ... } then how can you get an array of names of those functions? That is, an array ["foo", "bar", ... ] thanks.Read the article
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Regex for url domain
- by systempuntoout
How do i match from these urls: http://foo.bar.com http://bar.com foo.bar from the first link and bar from the second link using one single regex?Read the article
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How do you find the namespace/module name programatically in Ruby on Rails?
- by Steropes
How do I find the name of the namespace or module 'Foo' in the filter below? class ApplicationController < ActionController::Base def get_module_name @module_name = ??? end end class Foo::BarController < ApplicationController before_filter :get_module_name endRead the article
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Removing the scroll bar from a select element.
- by Darrell Brogdon
Is there a way to remove the scroll bar in a select element with the 'multiple' attribute enabled? <select name="test" multiple> <option value="foo">Foo</option> <option value="bar">Bar</option> <option value="baz">Baz</option> </select>Read the article
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Java URI.resolve
- by twip
I'm trying to resolve two URIs, but it's not as straightforward as I'd like it to be. URI a = new URI("http://www.foo.com"); URI b = new URI("bar.html"); The trouble is that a.resolve(b).toString() is now "http://www.foo.combar.html". How can I get away with that?Read the article
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[Embedded Python] Invoking a method on an object
- by jmucchiello
Given a PyObject* pointing to a python object, how do I invoke one of the object methods? The documentation never gives an example of this: PyObject* obj = .... PyObject* args = Py_BuildValue("(s)", "An arg"); PyObject* method = PyWHATGOESHERE(obj, "foo"); PyObject* ret = PyWHATGOESHERE(obj, method, args); if (!ret) { // check error... } This would be the equivalent of >>> ret = obj.foo("An arg")Read the article
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Declaring variables with this or var?
- by meo
What is the difference between declaring a variable with this or var ? var foo = 'bar' or this.foo = 'bar' When do you use this and when var?Read the article
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Making links clickable in Javascript?
- by mdorseif
Is there an simple way of turning a string from Then go to http:/example.com/ and foo the bar! into Then go to <a href="http://example.com">example.com</a> and foo the bar! in Javascript within an existing HTML page?Read the article
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Why can operator-> be overloaded manually?
- by FredOverflow
Wouldn't it make sense if p->m was just syntactic sugar for (*p).m? Essentially, every operator-> that I have ever written could have been implemented as follows: Foo::Foo* operator->() { return &**this; } Is there any case where I would want p->m to mean something else than (*p).m?Read the article
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Working with wchar in C
- by Richard Mar.
I have this code: #include <stdio.h> #include <wchar.h> int main() { wchar_t *foo = L"ðh"; wprintf(L"[%ls]\n", foo); return 0; } And when I compile it, it gives me the implicit declaration of function ‘wprintf’ warning. I know that I should link the wchar library during compilation, but how do I do that?Read the article
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Timer to find elapsed time in a function call in C
- by Mohit Nanda
I want to calculate time elapsed during a function call in C, to the precision of 1 nanosecond. Is there a timer function available in C to do it? If yes please provide a sample code-snippet. Pseudo code Timer.Start() foo(); Timer.Stop() Display time elapsed in execution of foo() Environment details: - using gcc 3.4 compiler on a RHEL machineRead the article
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efficiently list items in tuples starting at end
- by Donnied
I'd like to list the items in a tuple in Python starting with the back and go to front. Similar to: foo_t = tuple(int(f) for f in foo) print foo, foo_t[len(foo_t)-1] ... I believe this should be possible without Try ...-4, except ...-3. Thoughts? suggestions?Read the article
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using wild card when listing directories in python
- by user248237
how can I use wild cars like '*' when getting a list of files inside a directory in Python? for example, I want something like: os.listdir('foo/*bar*/*.txt') which would return a list of all the files ending in .txt in directories that have bar in their name inside of the foo parent directory. how can I do this? thanks.Read the article
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What is wrong in this simple Makefile
- by Walidix
SRC_VAR = test string for variable manipulation. TEST1_VAR = $(subset for,foo,${SRC_VAR}) all: @echo original str: ${SRC_VAR} @echo substitution: ${TEST1_VAR} This is the output: original str: test string for variable manipulation. substitution: The output should be: original str: My test string for variable manipulation. substitution: My test string foo variable manipulation.Read the article
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How to split a Ruby array into X parts
- by macek
I have an array foo = %w(1 2 3 4 5 6 7 8 9 10) How can I split or "chunk" this into smaller arrays? class Array def chunk(size) # return array of arrays end end foo.chunk(3) # => [[1,2,3],[4,5,6],[7,8,9],[10]]Read the article
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How do you convert a string to a node in XQuery?
- by Sixty4Bit
I would like to convert a string into a node. I have a method that is defined to take a node, but the value I have is a string (it is hard coded). How do I turn that string into a node? So, given an XQuery method: define function foo($bar as node()*) as node() { (: unimportant details :) } I have a string that I want to pass to the foo method. How do I convert the string to a node so that the method will accept the string.Read the article
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Linq grouping question
- by Mike C.
I have the following objects in a collection: Transaction: Type = "Widget" Date = "3/1/2011" Name = "Foo" Transaction: Type = "Widget" Date = "3/4/2011" Name = "Bar" Transaction: Type = "Gadget" Date = "3/2/2011" Name = "Baz" Transaction: Type = "Gizmo" Date = "3/1/2011" Name = "Who" Transaction: Type = "Gizmo" Date = "3/2/2011" Name = "What" Transaction: Type = "Gizmo" Date = "3/6/2011" Name = "When" I want to end up with the following, grouped by Type. If there are multiple, return only the first one chronologically by date. Transaction: Type = "Widget" Date = "3/1/2011" Name = "Foo" Transaction: Type = "Gadget" Date = "3/2/2011" Name = "Baz" Transaction: Type = "Gizmo" Date = "3/1/2011" Name = "Who"Read the article
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Rails 2.3: How to turn this SQL statement into a named_scope
- by randombits
Having a bit of difficulty figuring out how to create a named_scope from this SQL query: select * from foo where id NOT IN (select foo_id from bar) AND foo.category = ? ORDER BY RAND() LIMIT 1; Category should be variable to change. What's the most efficient way the named_scope can be written for the problem above?Read the article
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An object reference is required for the non-static field, method, or property using global variable
- by Jose Cardama
Hello Iam working in a global int in which a variable will be used later. I've made the global variable like this: class Foo { public static int stream = Bass.BASS_StreamCreateFile(path1.Text, 0, 0, BASSFlag.BASS_DEFAULT); } which will be later called like this: Foo.stream and it can also contain more then 1 stream for example stream20,30,etc... The problem here is that it returns me this error: "An object reference is required for the non-static field, method, or property" where I call the text in path1.Text How do I fix this?Read the article
